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INFRARED AND ULTRAVIOLET

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356 - Optics: measuring and testing

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DocumentTitleDate
20130083312Adaptive Search for Atypical Regions in Incident Light Field and Spectral Classification of Light in the Atypical Regions - A system and method for searching an incident light field for atypical regions (e.g., hot spots or cool spots or spectrally distinctive regions) within the incident light field using a light modulator and a spectral sensing device. Once the atypical regions are identified, the light modulator may be used to mask the incident light field so that the spectral sensing device can make spatially-concentrated measurements of the wavelength spectrum of the atypical regions (or alternatively, the exterior of the atypical regions). Furthermore, in a compressive imaging mode, a sequence of spatial patterns may be supplied to the light modulator, and a corresponding sequence of wavelength spectra may be collected from the spectral sensing device. The wavelength spectra comprise a compressed representation of the incident light field over space and wavelength. The wavelength spectra may be used to reconstruct a multispectral (or hyperspectral) data cube.04-04-2013
20130044313Broad Band Czerny-Turner Spectrometer, Methods, and Applications - A low-cost optics, broadband, astigmatism-corrected practical spectrometer. An off-the-shelf cylindrical lens is used to remove astigmatism over the full bandwidth, providing better than 0.1 nm spectral resolution and more than 50% through-put over a bandwidth of 400 nm centered at 800 nm. The spectrometer includes a first spherical mirror disposed along an optical path in an off-axis (tilted) orientation; a diffraction grating disposed along the optical axis in a location optically downstream from the first mirror; a second spherical mirror disposed along the optical path in an off-axis orientation in a location optically down-stream from the diffraction grating; a cylindrical optic disposed in the optical path; and a detector disposed in the optical path in a location optically downstream from the second spherical mirror.02-21-2013
20130044312SYSTEM AND METHOD FOR ELIMINATING THE EFFECT OF NON-PRIMARY LASER MODES ON CHARACTERIZATION OF OPTICAL COMPONENTS THROUGH CHARACTERIZED DECOMPOSITION - A method and a system for characterization of optical components through characterized decomposition of an optical device includes: directing incident light over a range of wavelengths to a device under test, wherein the incident light includes a primary signal and at least one sideband signal, the distance between the primary signal and any one of the sideband signals is substantially larger than the width of the band pass area of the device under test; detecting output light from the device under test to obtain a detected signal; correcting the detected signal to account errors associated with the sideband signal.02-21-2013
20100091267FUGITIVE EMISSION FLUX MEASUREMENT - A method of obtaining a fugitive emission flux measurement of airborne matter is provided. The method involves measuring the airborne matter along one or more than one measurement plane that spans the fugitive emission using two or more than two measurement beam paths where each of the two or more than two measurement beam paths are parallel to each other, or substantially parallel to each other, and determining a mass per unit length measurement for the measurement plane, determining a representative wind velocity at or near the one or more than one measurement plane, and calculating the fugitive emission flux of the airborne matter in mass per unit time using the mass per unit length determination and representative wind velocity.04-15-2010
20100149519POLARIZATION CONTRAST IMAGER (PCI) - A linearly polarized light is used to probe the detailed structure of a specimen. A reference light is also generated whose amplitude matches the amplitude of the diffracted light from the specimen. The reference light could either be generated from the light source itself as it is reflected off from a mirror through a light attenuator, or could as well be generated off from the reflected/transmitted light from/through the specimen passing through a light attenuator. The light from the specimen is retarded by a quarter-wave with respect to the reference light and the two lights are then passed through another polarizer/analyzer which allows the reference light and the diffracted light from the specimen to pass through while removing the background light. The diffracted light from the specimen, which carries the phase information of the underlying specimen's structure, is modulated by the reference light. The modulation is then recorded on an image sensor such as CCD. Should the specimen have any paramagnetic property, a magnetic gradient generator is employed to accentuate the image details further. The invention thus could be used to diagnosis a disease such as malaria due to paramagnetic and birefringence property of Hemozoin, the malaria pigment.06-17-2010
20120170024Long Range Acquisition and Tracking SWIR Sensor System Comprising Micro-Lamellar Spectrometer - A sensor system is provided having a precision tracking sensor element and a micro-lamellar spectrometer for determining the wavelength of an electromagnetic source such as a laser designator source. Acquisition sensor elements may be provided and mounted on a rotating base element that rotates about a first axis. The precision tracking sensor elements may be mounted on a hinged or pivoting element or gimbal on the housing and provided with drive means to permit a user to selectively manually or automatically direct it toward a scene target of interest detected by the acquisition sensor elements. At least one of the imaging elements in the precision tracking sensor or acquisition sensors is stacked micro-channel plate focal plane array element.07-05-2012
20120170023Method and Apparatus for a Mid-Infrared (MIR) System for Real Time Detection of Petroleum in Colloidal Suspensions of Sediments and Drilling Muds During Drilling Operations, Logging and Production Operations - A first waveguide has a top face positioned in an oil well borehole for wetting by returning drilling mud from a drill bit as drilling progresses. A second waveguide is positioned in the borehole for wetting by new drilling mud being pumped to the drill bit. MIR light rays are fed from an MIR light source into the first and second waveguides for causing evanescent waves to be generated by each waveguide for reacting with the molecules of the associated drilling mud, respectfully, whereby a modulated optical signal representative of spectra of components and particles in the associated drilling mud, respectively, are emitted from each waveguide. The modulated optical signals are converted to electrical signals, subtracted from one another to remove common mode signals, and passed into a processor programmed for extracting the spectra hydrocarbon components contained in the returning drilling mud as the result of the drilling activity.07-05-2012
20080285013Method of Checking the Filling Volume of Blisters - A method for checking the volume of material in the form of a thin layer of a powdery substance in pockets of a blister pack including: bringing at least one blister pack to the measuring area of a measuring system, the pack including a plurality of pockets which are designed to be reflective and are filled with a thin layer of the substance; exposing the substance in at least one of the pockets to near-infrared radiation; recording at least partial ranges of an actual reflectance spectrum for each pocket by detecting the radiation reflected from the pocket; calculating actual values associated with the intensities displayed in the actual reflectance spectrum for at least partial ranges of the actual reflectance spectrum; comparing, in at least partial ranges of the actual reflectance spectrum, the calculated actual values with corresponding reference values associated with the intensities displayed in at least one model spectrum; and checking the ratio of the layer thickness to the density of the powdery substance as a function of the result of the comparison.11-20-2008
20080259315Composition and Method for Indicating a Certain UV Radiation Dose - A method for indicating a certain UV radiation dose, using a mixture of substances, containing a substance of defined UV photoactivity, a redox dye and a substance acting as a sacrificial electron donor, exposing the mixture to UV radiation and detecting a defined color change when a certain UV radiation dose is reached.10-23-2008
20110194100MULTISPECTRAL SENSOR - A multispectral sensor which includes a complementary metal oxide semiconductor substrate having a switching circuit, at least one antenna-receiving combination device for detecting terahertz radiation, at least one additional bolometer for detecting mid-range infrared radiation, and at least one diode for detecting radiation in the visible to near-infrared range. A multispectral imaging and/or spectroscopy system, a method for detecting and/or examining life forms, objects, and materials using such a system, and the use of such a sensor and system are also described.08-11-2011
20130077086Solid-State Laser And Inspection System Using 193nm Laser - An improved solid-state laser for generating 193 nm light is described. This laser uses the 603-28-2013
20120176601METHOD FOR DETERMINATION OF MOLECULAR STRUCTURES AND FUNCTIONS - A method for measuring transport properties of cell membranes or lipid bilayers by providing at least a substrate having a topside and a backside and plurality of nano- or micro-pores and a cell membrane covering the plurality of pores being accessible from both sides of the cell membrane for measurement, a material layer at least in the region of the pores to support the cell membrane at the pores but not hindering the transport through the cell membrane and the pores arranged on the substrate, either on the topside or on the backside, applying a fluid containing at least one molecule to the topside of the membrane in order to allow the molecule to move through the membrane, one of the pores and the material layer, and monitoring of the molecules having passed the material layer by using an optical detection method.07-12-2012
20100118294Apparatus for Detecting the Leakage of Heavy Water in Nuclear Reactor System and Detection Method Using the Same - An apparatus and a method for detecting a leakage of heavy water in a nuclear reactor system includes: a diode laser that generates a laser beam and injects the generated laser beam to a test sample placed in a light absorption cell; the light absorption cell accommodates a gathered test sample therein; a vacuum pump adjusts a degree of vacuum in the light absorption cell; a test sample introduction unit gathers an air test sample from a location with a high possibility of a leakage of heavy water or a light water test sample from a secondary side of a steam generator and transfers the sample to the light absorption cell; an optical detector detects the laser beam which has passed through the light absorption cell; and a microprocessor controls the operation of the diode laser, the light absorption cell, the vacuum pump, the test sample introduction unit, and the optical detector, receives a detect signal from the optical detector, and analyzes an absorption spectrum signal.05-13-2010
20100073666IN-LINE PROCESS MEASUREMENT SYSTEMS AND METHODS - A method of using multivariate optical computing in real-time to collect instantaneous data about a process stream includes installing an optical analysis system proximate a process line, the process line being configured to move a material past a window of the optical analysis system; illuminating a portion of the material with a light from the optical analysis system; directing the light carrying information about the portion through at least one multivariate optical element in the optical analysis system to produce an instantaneous measurement result about the portion; and continuously averaging the instantaneous measurement result over a period of time to determine an overall measurement signal of the material.03-25-2010
20100033708Optical Inspection System Using UV Light for Automated Inspection of Holograms - Disclosed is an apparatus and methodology for inspecting holograms for structural integrity. Holograms configured for image formation under ambient, humanly perceivable light are illuminated with ultra-violet (UV) light to obtain an image of the actual structure of the hologram. The UV image is compared to a master hologram or image data file to determine the structural integrity.02-11-2010
20130038862APPARATUS OF INSPECTING DEFECT IN SEMICONDUCTOR AND METHOD OF THE SAME - When size of a defect on an increasingly miniaturized pattern is obtained by defect inspection apparatus in the related art, a value is inconveniently given, which is different from a measured value of the same defect by SEM. Thus, a dimension value of a defect detected by defect inspection apparatus needs to be accurately calculated to be approximated to a value measured by SEM. To this end, size of the defect detected by the defect inspection apparatus is corrected depending on feature quantity or type of the defect, thereby defect size can be accurately calculated.02-14-2013
20130038861Method and apparatus for determining the surface topography of coated reflective surfaces - The invention relates to the field of measurement technology and concerns a method and an apparatus, such as may be used, by way of example, in thin-layer technology for organic dielectric semi-conducting or conducting layers on substrates.02-14-2013
20130033699ALARM - An optical smoke detector (02-07-2013
20130033698FILM THICKNESS MEASUREMENT APPARATUS - The present invention is a film thickness measurement apparatus including a light source, a first optical path, a first condenser lens, a spectrometry unit, a second optical path, a second condenser lens, and a data processing unit. The light source emits measurement light having a predetermined wavelength range. The first optical path guides to an object to be measured the measurement light. The first condenser lens condenses the measurement light. The spectrometry unit obtains a wavelength distribution characteristic of reflectance or transmittance. The second optical path guides to the spectrometry unit the light reflected by or transmitted through the object. The second condenser lens condenses light at an end of the second optical path. The data processing unit analyzes the wavelength distribution characteristic obtained in the spectrometry unit to obtain a film thickness of the object.02-07-2013
20100045970Infrared imaging using thermal radiation from a scanning probe tip - A method for performing sub-micron optical spectroscopy, using a heated SPM probe and far-field collection optics is described. The enhanced emission characteristics at a sharp heated tip constitute a highly localized wideband IR source. Thus the IR absorption and emission properties of a sample surface adjacent can be observed and measured in the farfield even though the interaction region is sub-micron in scale. . . . providing spatial resolution mapping of sample composition.02-25-2010
20100045972METHODS AND APPARATUS FOR INDIRECT ILLUMINATION IN ELECTRONIC MEDIA RATING SYSTEMS - Methods and apparatus for indirect illumination in electronic media rating systems are disclosed. A disclosed example method includes reflecting infrared light off of a room ceiling to indirectly illuminate the audience member, receiving reflections of the indirect illumination off of the audience member, blocking visible light prior to receiving the reflections of the indirect illumination off of the audience member, and processing the received reflections to detect the audience member.02-25-2010
20100045971Solar-powered light intensity measurement device - There is provided a solar powered light intensity measurement device which includes one or more photovoltaic cells, one or more resistors and one or more light emitting diodes. The one or more photovoltaic cells convert light to electricity, the output corresponding to the intensity of incident light. Electrically activated from the photovoltaic cells, through the one or more resistors, the light emitting diodes emit a signal color, further corresponding to their electrical activation and hence to the intensity of light incident upon the one or more photovoltaic cells. The signal color is compared to reference color or chart for use in determining the relevant light intensity. In one embodiment, the device further includes an analog switch.02-25-2010
20100045969METHODS FOR DETERMINING ENANTIOMERIC PURITY WITH VARYING CHIRAL ANALYTE CONCENTRATION - A new strategy for the quantitative determination of enantiomeric purity that combines guest-host complexation, spectroscopy, and chemometric modeling. Spectral data for samples of known enantiomeric composition is subjected to a type of multivariate regression modeling known as partial least squares (“PLS-1”) regression. The PLS-1 regression produces a mathematical model that can be used to predict the enantiomeric composition of a set of samples of unknown enantiomeric purity. In this strategy, the concentration of the chiral compound does not have to be fixed or known.02-25-2010
20100097599Spectrometric process monitoring - Spectrometric apparatus that include an array of detector elements and exhibits a number of capabilities is disclosed. The elements can be responsive to incident radiation to produce an output signal that includes information from the incident radiation. A spectrally selective element can be located in an optical path between the radiation source and the array, with an analysis module responsive to the output signal operative to analyze spatial distribution of spectral information received by the array. The apparatus can also correct for differences in intensity and spectral variability for spectral image signals and/or compare the spectral image signals with a pattern in spatial-spectral coordinate space. Detector elements can be responsive to scattering, and spatial information in their output can be analyzed.04-22-2010
20130135608APPARATUS AND METHOD FOR IMPROVED PROCESSING OF FOOD PRODUCTS - The light backscatter probe includes a housing carrying at least one optical transmission fiber and two optical reception or collecting fibers. The ends of the fibers are closed by a sapphire window. First and second light sources are provided for projecting incident light onto a product outside the sapphire window. The reception paths or fibers are located at different radial distances from the one optical transmission path to allow for measuring the coagulation of dairy products or determination of compositions of food products.05-30-2013
20130027685APPARATUS AND METHOD OF BIOMETRIC DETERMINATION USING SPECIALIZED OPTICAL SPECTROSCOPY SYSTEMS - Methods and apparatuses for performing biometric determinations using optical spectroscopy of tissue. The biometric determinations that are disclosed include determination or verifications of identity, estimation of age, estimation of sex, determination of sample liveness and sample authenticity. The apparatuses disclosed are based upon discrete light sources such as light emitting diodes, laser diodes, vertical cavity surface emitting lasers, and broadband sources with multiple narrow-band optical filters. The multiple light sources are encoded in a manner that the tissue response for each source can be efficiently measured. The light sources are spaced at multiple distances from a detector to contribute differing information to the biometric determination task as do light sources with different wavelength characteristics. Apparatuses are disclosed that incorporate a spectral biometric sensor with a personal electronic device such as cellular telephones, personal digital assistants, wristwatches, electronic fobs for the purpose of providing secure biometric access to protected property.01-31-2013
20130208260METHOD, APPARATUS, AND ARTICLE TO FACILITATE EVALUATION OF OBJECTS USING ELECTROMAGNETIC ENERGY - Spectral information may be employed in process control and/or quality control of goods and articles. Spectral information may be employed in process control and/or quality control of media, for example financial instruments, identity documents, legal documents, medical documents, financial transaction cards, and/or other media, fluids for example lubricants, fuels, coolants, or other materials that flow, and in machinery, for example vehicles, motors, generators, compressors, presses, drills and/or supply systems. Spectral information may be employed in identifying biological tissue and/or facilitating diagnosis based on biological tissue.08-15-2013
20080304048Methods and Apparatus For Measuring the Concentration of a Substance in a Solution - The present invention relates to methods and apparatus for detecting and measuring the concentration of a substance in a solution, the substance having an absorption at 300 nm or less. The methods and apparatus have particular utility in detecting and measuring the concentration of proteins and nucleic acids.12-11-2008
20120182542Optical Vacuum Ultra-Violet Wavelength Nanoimprint Metrology - An optical metrology apparatus for measuring nanoimprint structures using Vacuum Ultra-Violet (VUV) light is described.07-19-2012
20130070231IMAGE FORMING APPARATUS HAVING OPTICAL SENSOR SYSTEM, OPTICAL SENSOR SYSTEM HAVING HEATING MODULE, AND METHOD THEREOF - An optical sensor system is disclosed including a source module, a detection module, and a heating module. The source module includes a source housing unit having a source window member to emit a detection signal through the source window member. The detection module includes a first detection housing unit having a first detection window member spaced apart from the source module. The detection signal received by the detection module corresponds to an amount of volatile organic compounds (VOC) present in a path of the detection signal between the detection module and the source module. The heating module heats the source window member and the detection window member to remove deposit formation of the VOC there from.03-21-2013
20130070232PROJECTOR - This projector includes a laser beam emitting portion, a projection portion projecting an image on an arbitrary projection region, and a detecting portion detecting a laser beam reflected by an object to be detected, and is configured to acquire the inclination of the object to be detected with respect to the projection region on the basis of the laser beam detected by the detecting portion.03-21-2013
20130088706HYDROGEN PASSIVATION OF NONLINEAR OPTICAL CRYSTALS - The present invention includes an exposure chamber configured to contain a passivating gas having a selected hydrogen concentration, the exposure chamber further configured to contain at least one NLO crystal for exposure to the passivating gas within the chamber, a passivating gas source fluidically connected to the exposure chamber, the passivating gas source configured to supply passivating gas to an interior portion of the exposure chamber, and a substrate configured to hold the NLO crystal within the chamber, the substrate further configured to maintain a temperature of the NLO crystal at or near a selected temperature, the selected temperature being below a melting temperature of the NLO crystal.04-11-2013
20090103074Methods for Performing Quality Control of Process to Treat a Surface - The present application is directed to methods for performing quality control analysis of a process to treat a surface of a workpiece. A sensor is placed in proximity to the surface, and a controller analyzes data obtained by analyzing a signal from the sensor. The controller may determine whether the process started properly, the presence of a lubricant on the surface, and the amount of the lubricant.04-23-2009
20120218543MASK INSPECTION METHOD AND MASK INSPECTION APPARATUS - According to one embodiment, a method of detecting a defect of a semiconductor exposure mask includes acquiring a background intensity from a surface height distribution of the mask, acquiring a standard background intensity distribution from the background intensity, making light of an arbitrary wavelength incident on the mask, and acquiring an image at a position of interest of the mask, acquiring background intensity raw data, based on a signal intensity of the acquired image at the position of interest and a mean value of image intensity data in a peripheral area of the position of interest, finding a correction coefficient of the signal intensity, based on a ratio of the background intensity raw data to the standard background intensity distribution, correcting the signal intensity by multiplying the signal intensity.08-30-2012
20120218542INFRARED ANALYSIS APPARATUS - An infrared analysis apparatus may include a first head and a second head. The first head may include a plurality of light sources each of which irradiates rays of infrared light having different wavelengths on a test object, and an optical element that is disposed between the plurality of light sources and the test object, the optical element making intensity distribution of the infrared light uniform. The second head may include a detector that detects the infrared light transmitted through the test object.08-30-2012
20100283993Automated Soil Measurement Device - A system and a method are disclosed for combining a soil sample and extractant in a mixing chamber to produce a liquid extractant-soil mixture. A portion of the liquid extractant-soil mixture is directed from the mixing chamber through a sample measurement chamber coupled to the mixing chamber. The sample measurement chamber is coupled to a light source so that light propagates from the light source through the portion of the liquid extractant-soil mixture to an optical detector which generates an attenuation spectrum indicating light received by the detector at different wavelengths. The sample measurement chamber may include an attenuation cell having a specified optical path between a first measurement window and a second measurement window and angular surface directing particulates in the liquid extractant-soil mixture away from the attenuation cell.11-11-2010
20110058157METHOD OF HELPING PARTICLE DETECTION, METHOD OF PARTICLE DETECTION,APPARATUS FOR HELPING PARTICLE DETECTION,AND SYSTEM FOR PARTICLE DETECTION - A method of helping particle detection and a method of particle detection include an adsorption/infiltration step where an organic gas is brought into contact with organic particles to cause an organic gas component to be adsorbed and infiltrate to the organic particles; a foaming step where a heated gas is brought into contact with the organic particles contacted with the organic gas to foam/expand the organic particles; and an organic-particle detection step where the foamed/expanded organic particles are irradiated with light and light scattered by the organic particles is received to detect the organic particles. Further, the methods include an oxidation step where inorganic particles and the organic particles are oxidized to decompose the organic particles and expand the inorganic particles; and an inorganic particle detection step where the expanded inorganic particles are irradiated with light and light scattered by the inorganic particles is received to detect the inorganic particles.03-10-2011
20130057850Radiation source - A radiation source for emitting infrared electromagnetic radiation and having at least one source element. The radiation source is characterized by features including that: the source element is embodied in the form of a silicon carbide fiber; the source element is coated at least sectionally with a metal coating, via which the source element can be heated; and the metal coating heats the source element at least at times in such a manner that the source element emits infrared radiation at least at times. A method for the manufacture of a radiation source is likewise claimed relevant.03-07-2013
20130057849Coating Inspection Device - A coating inspection device for inspecting an object after a coating material has been applied is disclosed. The coating inspection device may include a pair of eyeglasses worn on a person's face, resting on the person's ears and nose. The eyeglasses may include a frame member having a first side and a second side opposite the first side. A set of lenses may be disposed within the frame member. At least one light source may be disposed on the frame member. The ultraviolet light source may be moveable to adjust the direction in which the ultraviolet light source emits light. A switch may be disposed on the frame03-07-2013
20090303463WEATHERABLE POLYOLEFIN NANOCOMPOSITES - A method is disclosed concerning discovering how the use of an additive in a polyolefin compound affects the weatherability of that compound. Applying that technique, a weatherable polyolefin nanocomposite is disclosed, which contains UV stabilizers that filter wavelengths in a range influenced by presence of organoclay in the nanocomposite.12-10-2009
20100128255OPTICAL CELL05-27-2010
20130063715COORDINATE MEASURING DEVICE HAVING AUTOMATIC TARGET DETECTION - A coordinate measuring device includes a carrier that can be rotated automatically about two axes and that can be directed toward a measuring aid. The following are arranged on the carrier so as to be able to move together: an optical distance measuring device for measuring the distance to the measuring aid; a light source for emitting light, directly or by means of optical elements, wherein said light is visible as a target point when reflected on the measuring aid; a target detecting unit for determining a position as the position of the imaging of the target point on a position detection sensor. The control apparatus is designed to direct the carrier at the measuring aid by rotating the carrier about the at least two axes of the carrier according to the fine position and the rough position; and the light source is a superluminescent diode (SLED).03-14-2013
20130063714Emission and Transmission Optical Spectrometer - A novel emission and transmission optical spectrometer is introduced herein, which is capable of optically interrogating solid or liquid samples of organic, inorganic or polymeric chemistry, for pharmaceutical research, forensic and liquid analyses, used for identification, purity check, and/or structural study of chemicals. The beneficial aspects of the system are a single sample compartment as confined within the walls of the spectrometer housing, a more compact accessory, and the capability of making both emission (e.g., Raman and Fluorescence) and Infrared (IR, NIR) transmission measurements at designed sample points.03-14-2013
20130063716ILLUMINATION OPTICS FOR A METROLOGY SYSTEM FOR EXAMINING AN OBJECT USING EUV ILLUMINATION LIGHT AND METROLOGY SYSTEM COMPRISING AN ILLUMINATION OPTICS OF THIS TYPE - A metrology system serves to examine an object arranged in an object field using EUV illumination light. An illumination optics of the metrology system has a collector mirror which is arranged in the beam path directly downstream of an EUV light source. Downstream of the collector mirror, less than three additional illumination mirrors are arranged in the beam path between the collector mirror and the object field. An intermediate focus is arranged in the beam path between the collector mirror and the additional illumination mirror. The metrology system further includes a magnifying imaging optics for imaging the object field into an image field in an image plane. As a result a metrology system is obtained which comprises an illumination optics that ensures an efficient illumination of the object field by means of illumination parameters which are well adapted to the illumination situation of current EUV projection exposure apparatuses.03-14-2013
20080204710Spectrometer with collimated input light - An optical spectroscopy tool is provided. In one embodiment a highly efficient means by which moderate resolution spectroscopy may be performed in the vacuum ultraviolet (VUV) is described. In one embodiment the techniques can be used as a high throughput spectrometer to spatially disperse wavelengths in and around the VUV in such a manner as to generate a substantially flat field focal plane, suitable for use in combination with an array detector. Some embodiments utilize prism based spectrometers. Some embodiments utilize detector elements that may be movable and/or located within the spectrometer. In some embodiments, collimated light may be provided as an input to the spectrometer.08-28-2008
20130162979Measuring Method and Measuring Device for Optical Gas Measurement - An optical gas measurement using a Vertical Cavity Surface-Emitting Laser (VCSEL) and a hollow waveguide connected thereto, wherein the hollow waveguide contains a gas to be measured and conducts light. To this end, the hollow waveguide is made to vibrate. The gas measurement is performed and integrated over a period of time. As a result, disturbances of the measurement caused by interferences are considerably reduced.06-27-2013
20130162980APPARATUS FOR NON-INVASIVELY INSPECTING DEFECTS AND METHOD FOR INSPECTING DEFECTS USING THE SAME - Disclosed herein are an apparatus for non-invasively inspecting defects, including: a sample irradiation unit having a sample that is an inspection target seated thereon and irradiating polarization to the sample; a light receiving unit detecting polarization from the sample; and a control unit processing and storing each data detected from the light receiving unit, and a method for inspecting defects using the same.06-27-2013
20090237646Lyman-alpha Scatterometry - New and useful optical structure and method are provided, for analyzing the surface topography of a sample. Specifically, an optical system and method are provided in which radiation reflected from a sample is used to determine surface topography characteristics of the sample, and in which an illumination source directs Lyman-α radiation at the sample in an environment that is at least partly an atmospheric environment. Thus, the present invention takes advantage of atmospheric transmission capability at the short wavelength Lyman-α line to provide a system and method that can detect relatively fine surface topography of a sample such as a wafer that has been imaged by a lithographic imaging optical system.09-24-2009
20090237645SYSTEM AND METHOD OF OPTICALLY MONITORING CONTAMINATION OF A MACHINE COMPONENT - A system and method for optically monitoring contamination of machinery includes an optical illumination source, a photodetector and an analysis module. The system and method can monitor a fuser roll, a fuser belt, or other printer module component. The optical illumination source can emit at least one illuminating frequency. The at least one illuminating frequency is configured to cause a contaminant marker to fluoresce at least one fluorescing frequency and is also configured to at least partially illuminate the machine component. The machine component contains the contaminant marker when at least partially contaminated. The photodetector is responsive to the at least one fluorescing frequency and detects the at least one fluorescing frequency emitted from the contaminated machine component. The analysis module is in operative communication with the photodetector and is figured to receive a signal therefrom. The analysis module is configured to estimate contamination of the machine component as a function of the signal from the photodetector.09-24-2009
20090046273Systems and Methods for Monitoring and Controlling the Operation of Extreme Ultraviolet (EUV) Light Sources Used in Semiconductor Fabrication - Systems and methods for monitoring and controlling the operation of extreme ultraviolet (EUV) sources used in semiconductor fabrication are disclosed. A method comprises providing a semiconductor fabrication apparatus having a light source that emits in-band and out-of-band radiation, taking a first out-of-band radiation measurement, taking a second out-of-band radiation measurement, and controlling the in-band radiation of the light source, at least in part, based upon a comparison of the first and second out-of-band measurements. An apparatus comprises a detector operable to detect out-of-band EUV radiation emitted by an EUV plasma source, a spectrometer coupled to the electromagnetic detector and operable to measure at least one out-of-band radiation parameter based upon the detected out-of-band EUV radiation, and a controller coupled to the spectrometer and operable to monitor and control the operation of the EUV plasma source based upon the out-of-band measurements.02-19-2009
20090185162APPARATUS AND METHOD FOR MEASURING AND/OR CONTROLLING PAPER PULP PROPERTIES - A method includes illuminating a material using first light. The first light is associated with one or more ultraviolet wavelengths/wavelength bands, and the material includes pulp fibers. The method also includes measuring second light from the material, where the second light is based on the first light. The method further includes determining an amount of lignin in the material using the measured second light. The ultraviolet wavelengths/wavelength bands could include at least one wavelength between 260 nanometers and 300 nanometers, inclusive (such as 280 nm). The one or more ultraviolet wavelengths/wavelength bands could additionally include 205 nanometers, 250 nanometers, 300 nanometers, and/or 360 nanometers. The method could also include illuminating the material using third light and measuring fourth light from the material, where the fourth light is based on the third light. The third light is associated with at least one wavelength/wavelength band that falls within a non-absorption wavelength band of lignin.07-23-2009
20120113412SPECTRUM MEASURING APPARATUS FOR MOVER - Provided is a moveable spectrum measuring apparatus capable of improving discrimination precision of a measuring object on the basis of observation data from a spectrum sensor mounted on a movable apparatus such as a vehicle. A measuring object and a reference body are irradiated with ambient light. A spectrum acquiring device acquires measuring object data indicating the spectrum of the measuring object, and reference body data indicating the spectrum of the reference body to become a reference at the time when the spectrum of the measuring object is corrected. A spectrum converting device has reference body reflectivity data indicating the surface reflectivity of the reference body, and creates ambient light data indicating the spectrum of the ambient light, on the basis of the reference body reflectivity data and the reference body data. By using the ambient light data, the measuring object data is converted into measuring object reflectivity data indicating the surface reflectivity of the measuring object. On the basis of the measuring object reflectivity data, a discrimination device discriminates the measuring object.05-10-2012
20130162978SYSTEM AND METHOD FOR AUTO-FOCUSING IN OPTICAL COHERENCE TOMOGRAPHY - A system, in one embodiment, includes an optical coherence tomography (OCT) imaging system having a light source configured to emit light. The OCT imaging system further includes a beam splitter configured to receive the light from the light source, split the light into a first light portion directed along a sample arm comprising a sample and a second light portion directed along a reference arm comprising a reference mirror, receive a first reflected light portion from the sample arm and a second reflected light portion from the reference arm, combine the first and second reflected light portions to obtain an interference signal at a detector. Further, the OCT imaging system includes a controller having logic configured to perform an auto-focusing process to determine the optimal position for a lens in the sample arm in order to bring the sample into focus.06-27-2013
20110032513FLUID FLOW DEVICE, ASSEMBLY FOR DETERMINING AT LEAST ONE CHARACTERISTIC OF A PHYSICO-CHEMICAL SYSTEM THEREWITH - Fluid flow devices include a small plate (02-10-2011
20080246949OPTICAL TRAIN AND METHOD FOR TIRF SINGLE MOLECULE DETECTION AND ANALYSIS - In one aspect the invention relates to an apparatus for analyzing the presence of a single molecule using total internal reflection. In one embodiment an apparatus for single molecule analysis includes a support having a sample located thereon; two sources of light at distinct wavelengths, a collimator for directing the light onto the sample through a total internal reflection objective; a receiver for receiving a fluorescent emission produced by a single molecule in the sample in response to the light; and a detector for detecting each of the wavelengths in the fluorescent emission. In another embodiment the apparatus further comprises a focusing laser for maintaining focus of the objective on the sample.10-09-2008
20120127457LIQUID CRYSTAL PANEL, LIQUID CRYSTAL DISPLAY DEVICE, AND METHOD FOR INSPECTING SEALING RESIN - A liquid crystal panel (05-24-2012
20130016338SCANNER WITH PHASE AND PITCH ADJUSTMENT - A method for determining three-dimensional coordinates of an object point on a surface of an object, including steps of providing a transparent plate having a first region and a second region, the second region having a different wedge angle than the first region; splitting a first beam of light into a first light and a second light; sending the first light through the first region or the second region; combining the first light and the second light to produce a fringe pattern on the surface of the object, the pitch of the fringe pattern depending on the wedge angle through which the first light travels; imaging the object point onto an array point on a photosensitive array to obtain an electrical data value; determining the three-dimensional coordinates of the first object point based at least in part on the electrical data value.01-17-2013
20100253934ANALYSIS OF MIXTURES INCLUDING PROTEINS - The quality control of vaccines is an important step in the release of vaccines to patients. Problems when dealing with vaccines include stability, batch-to-batch consistency and contamination. The invention provides a method of analyzing the composition of a protein-containing sample by electromagnetic spectroscopy, and derivatising the obtained spectrum to obtain a derivative spectrum of the sample. The derivative spectrum may optionally be compared to a reference spectrum, to assess stability, contamination etc. relative to the reference. The derivative analysis technique allows the separation and discrimination between the spectral contributions of different components, thereby allowing differences in the spectra to be assigned to particular groups of the protein, or particular contaminants etc.10-07-2010
20100195091SENSOR DEVICE AND METHOD FOR DETECTING THE TURBIDITY OF WASH LIQUOR - A sensor device and method for detecting the turbidity of wash liquor. The sensor device includes an optical transmitter; an optical receiver, wherein the wash liquor to be tested flows between the transmitter and the receiver; and an electronic control and evaluation device to (a) carry out a reference measurement by means of the optical transmitter and receiver in order to determine a reference measured value; (b) carry out a turbidity measurement on the wash liquor to be measured by means of the optical transmitter and receiver in order to determine a test measured value; (c) relate the reference measured value to the test measured value; and (d) determine a characteristic value for a determined turbidity of the wash liquor therefrom and transmit the characteristic value as a measurement signal. The determination of the reference measured value and the test measured value include determining a gradient of the turbidity.08-05-2010
20110122397FUGITIVE EMISSION FLUX MEASUREMENT - A method of obtaining a fugitive emission flux measurement of airborne matter is provided. The method involves measuring the airborne matter along one or more than one measurement surface that spans the fugitive emission using two or more than two measurement beam paths where each of the two or more than two measurement beam paths are parallel to each other, or substantially parallel to each other, and determining a mass per unit length measurement for the measurement surface, determining a representative wind velocity at or near the one or more than one measurement surface, and calculating the fugitive emission flux of the airborne matter in mass per unit time using the mass per unit length determination and representative wind velocity.05-26-2011
20120287419UV DIODE LASER EXCITATION IN FLOW CYTOMETRY - The present invention generally relates to a method and apparatus for exciting particles, and more specifically relates to analyzers or sorters for exciting fluorescently labeled particles with a multimode diode laser and the optics for making high resolution determinations from the multimode diode laser beam excitation.11-15-2012
20080212075SHORT-WAVELENGTH COHERENCE TOMOGRAPHY - The present relates generally to methods, systems and apparatuses for three dimensional and cross-sectional imaging of objects (e.g., silicon) and subjects at a nanometer-scale resolution using short wave-length (e.g., extreme ultra-violet) light.09-04-2008
20090310125Arrangement Adapted to Evaluate the Intensity of or a Changing in the Intensity of an Electro-Magnetic Beam or a Bundle of Beams - The present invention refers to an arrangement adapted to evaluate the spectral intensity of and/or a changing in the spectral intensity of an electro-magnetic beam or a bundle of beams, whereby said bundle of beams is directed towards and received by a lens element and where said lens element is adapted to direct said bundle of beams towards a multitude of electro-magnetic beam to an electric signal transforming means, named as an opto-electric transforming means, said means adapted to generate an electric signal representative to said spectral intensity of or said changing in said spectral intensity of said beam. The invention suggests that a multitude of lens elements shall expose dimensions adapted within a sub-micron scale (1012-17-2009
20120002192Automated Soil Measurement Device - A soil analysis device and a method are disclosed for measuring characteristics of a soil sample. A mixing chamber combines a soil sample and an extractant into a liquid mixture. A filtration system receives and filters the liquid mixture. The filtered liquid mixture is transmitted through a pipe with a slope to a measurement cell. The measurement cell is coupled to a light source so that light propagating from the light source is attenuated by the liquid mixture and is measured by an optical detector that is also coupled to the measurement cell. The optical detector generates an attenuation spectrum indicating light received by the detector at different wavelengths. The attenuation spectrum is used to determine the characteristics of the soil sample.01-05-2012
20110285985Method for Analyzing Sample and Microanalysis Chip to be used Therefore - In the present invention, microanalysis chip 11-24-2011
20110299066COMPONENT CONCENTRATION METER, COMPONENT CONCENTRATION MEASUREMENT METHOD, SHIPPING INSPECTION SYSTEM, AND HEALTH MANAGEMENT SYSTEM - An component concentration meter (12-08-2011
20090201492METHOD AND DEVICE FOR ANALYZING A LAYER OF METAL WORKING COMPOUND - The invention relates to a method for analyzing a layer of a metal working compound (08-13-2009
20100265494SURFACE DEFECT INSPECTION METHOD AND APPARATUS - A surface defect inspection apparatus and method for irradiating a beam multiple times to a same region on a surface of an inspection sample, detecting each scattered light from the same region by detection optical systems individually to produce plural signals, and wherein irradiating the beam includes performing a line illumination of the beam on a line illumination region of the sample surface. The line illumination region is moved in a longitudinal direction at a pitch shorter than a length of the line illumination region in the longitudinal direction.10-21-2010
20110292373THIN FILM MONITORING DEVICE AND METHOD - A method for determining a quality of an etched thin film deposited onto a transparent substrate is provided. The method includes depositing the thin film onto the transparent substrate. Then, the thin film is etched at least at portions of the transparent substrate. At least one transparency level of the transparent substrate having deposited thereon the at least partially etched thin film is measured at least at one wavelength in a wavelength range from 280 nm to 340 nm. Then the quality of the etch process is evaluated on the basis of the at least one measured transparency level.12-01-2011
20110292375System for directly measuring the depth of a high aspect ratio etched feature on a wafer12-01-2011
20080297766System and method for measuring fluid aeration - An aeration measurement system for a fluid actuation system is disclosed. The aeration measurement system has a container configured to receive fluid, and a light source configured to emit light into the container. The aeration measurement system also has a light receiver that is configured to receive light from the light source while the light is passing through the fluid. The aeration measurement system further has a controller in communication with the light source and light receiver. The controller is configured to determine an amount of aeration in the fluid based on the received light.12-04-2008
20100014069METHOD AND APPARATUS FOR EVALUATING ULTRAVIOLET RADIATION PROTECTION EFFECT - A first step of measuring a change over time in the spectral transmission spectrum of a measurement sample by its exposure to the light of a light source including an ultraviolet radiation for a preset light exposure time, a second step of performing a correction according to the change over time in the spectral transmission spectrum of the measurement sample based on the result of the measurement obtained by the first step, and a third step of calculating the final in vitro predicted SPF of the measurement sample using the result of the correction obtained by the second step are included.01-21-2010
20110299065SYSTEM AND METHOD FOR MEASURING RADIANT ENERGY IN GAS TURBINE ENGINES, COMPONENTS AND RIGS - One embodiment of the present invention is a unique system for measuring radiant energy in gas turbine engines, gas turbine engine components and gas turbine engine/component rigs. Another embodiment is a unique method for measuring radiant energy in gas turbine engines, gas turbine engine components and gas turbine engine/component rigs. Other embodiments include apparatuses, systems, devices, hardware, methods, and combinations for measuring radiant energy. Further embodiments, forms, features, aspects, benefits, and advantages of the present application shall become apparent from the description and figures provided herewith.12-08-2011
20090002684HIGH-SPEED SPECTROGRAPHIC SENSOR FOR INTERNAL COMBUSTION ENGINES - A high-speed absorption spectrographic system employs a slit-less spectroscope to obtain high-resolution, high-speed spectrographic data of combustion gases in an internal combustion engine allowing precise measurement of gas parameters including temperature and species concentration.01-01-2009
20100134785MODULATED REFLECTANCE MEASUREMENT SYSTEM USING UV PROBE - A modulated reflectance measurement system includes lasers for generating an intensity modulated pump beam and a UV probe beam. The pump and probe beams are focused on a measurement site within a sample. The pump beam periodically excites the measurement site and the modulation is imparted to the probe beam. For one embodiment, the wavelength of the probe beam is selected to correspond to a local maxima of the temperature reflectance coefficient of the sample. For a second embodiment, the probe laser is tuned to either minimize the thermal wave contribution to the probe beam modulation or to equalize the thermal and plasma wave contributions to the probe beam modulation.06-03-2010
20100007873VISUALIZATION OF THE ULTRAVIOLET RADIATION REFLECTING POWER OF A GLASSES LENS - According to the invention, in order to visualise the ultraviolet radiation reflection power of a glasses lens (01-14-2010
20090153839PARTIAL COHERENCE INTERFEROMETER WITH MEASUREMENT AMBIGUITY RESOLUTION - A partial coherence interferometer incorporates a focusing system for resolving measurement ambiguities. A focus-sensing beam is directed through a common objective with the measurement beam of the interferometer for conveying the beams to and from a test surface. An unambiguous measuring range is equated to a predetermined range of focusing errors.06-18-2009
20090153840Method And Apparatus For Inspecting Pattern Defects - An apparatus and method for inspecting defects includes an illuminator for irradiating light having an ultraviolet wavelength emitted from a light source onto a specimen through a reflection objective lens, an image-former for forming an image of light reflected from the specimen by the illumination of the light from the illuminator, which is passed through at least the reflection objective lens, a detector which detects the image of light formed by the image-former with an image sensor, and an image processor for processing a signal output from the detector to detect defects on the specimen. The image sensor is a reverse-surface irradiation type image sensor.06-18-2009
20080204712Dispersive near-infrared spectrometer with automatic wavelength calibration - The present invention is a dispersive, diffraction grating, NIR spectrometer that automatically calibrates the wavelength scale of the instrument without the need for external wavelength calibration materials. The invention results from the novel combination of: 1) a low power He—Ne laser at right angles to the source beam of the spectrometer; 2) a folding mirror to redirect the collimated laser beam so that it is parallel to the source beam; 3) the tendency of diffraction gratings to produce overlapping spectra of higher orders; 4) a “polka dot” beam splitter to redirect the majority of the laser beam toward the reference detector; 5) PbS detectors and 6) a software routine written in Lab VIEW that automatically corrects the wavelength scale of the instrument from the positions of the 632.8 nm laser line in the spectrum.08-28-2008
20090033913DIGITAL PULSE PROCESSOR SLOPE CORRECTION - A method of adjusting a response of an energy measuring filter, such as an FIR filter, of a pulse processor based on a slope of a preamplifier signal having a plurality of step edges each corresponding to a respective photon is provided that includes receiving a digital version of the preamplifier signal comprising a plurality of successive digital samples each having a digital value, the preamplifier signal having a portion defined by a first one of the step edges and a second one of the step edges immediately following the first one of the step edges, using the digital values of each of the digital samples associated with the portion to determine an average slope of the portion normalized by a length of the portion, and using the average slope of the portion normalized by a length of the portion to correct the response of the energy measuring filter.02-05-2009
20090141264Method and Apparatus for Observing and Inspecting Defects - A defect inspecting apparatus includes a sample mounting device for mounting a sample; lighting and detecting apparatus for illuminating a patterned sample mounted on a mount and detecting the optical image of the reflected light obtained therefrom. Also included is a display for displaying the optical image detected by this lighting and detecting apparatus; an optical parameter setting device for setting and displaying optical parameters for the lighting and detecting apparatus on the display; and optical parameter adjusting apparatus for adjusting optical parameters set for the lighting and detecting apparatus according to the optical parameters set by the optical parameter setting apparatus; a storage device for storing comparative image data; and a defect detecting device for detecting defects from patterns formed on the sample by comparing the optical image detected by the optical image detecting apparatus with the comparative image data stored in the storage.06-04-2009
20090310126Method and apparatus for raised material detection - A method is provided of detecting a region of raised material on a document surface. A surface of the document is illuminated with at least one angled radiation beam such that any raised material on the document surface reflects the radiation. The surface containing the raised material is imaged using at least one radiation detector. The image is then processed to detect the existence on the document surface of the raised material. The illuminating step causes a reflection and/or shadow to be generated from at least one edge of the raised material. The processing step detects the location of the material using the said reflection and/or shadow from the at least one edge.12-17-2009
20090310124Development of Disposable/Sealable Caps for Spectroscopic Probes - The present invention relates to a sealable cell for measuring a liquid sample comprising a spectroscopic probe and a removable cap that can accommodate at least the head of the probe, wherein the internal wall of the cap comprises one or more grooves which are disposed so as to allow a liquid sample to enter the head of the probe and air to escape from the head of the probe to enable improved spectra to be obtained.12-17-2009
20120033201BIOLOGICAL OPTICAL MEASUREMENT INSTRUMENT AND METHOD FOR DETERMINING DAMAGE OF OPTICAL FIBERS - A biological optical measurement instrument has a gain adjustment unit (02-09-2012
20120033199Mixture Segregation Testing Devices and Methods - Methods and devices are provided to measure segregation in solid particulate mixtures. Light energy is projected through a transparent barrier and reflected off a surface of a mixture volume. The constituent fraction in the mixture is determined by analyzing the mixture reflected light as a combination of the constituents' known reflected light spectral contents and intensities. This is accomplished at multiple surface locations to provide constituent fraction data over the mixture volume surface.02-09-2012
20090237647PREPARING SAMPLES FOR OPTICAL MEASUREMENT - We disclose an apparatus comprising: a hand-portable optical analysis unit including an optical interface; and a device configured to receive and releasably engage the hand-portable optical analysis unit. The device comprises: a housing; a sample unit in the housing; and a resilient member configured to bias the sample unit and the hand-portable analysis unit towards each other when the hand-portable optical analysis unit is received in the device to compress a sample disposed between the sample unit and the optical interface of the optical analysis unit. Methods of analyzing samples are also disclosed.09-24-2009
20100091265Fiber optic sensor head and interferometric measuring system - A fiber optic sensor head for detecting the shape or the distance of a test object has an optical fiber, in particular a glass fiber, for conducting and returning partial beams to and from the test object, and an injection/extraction lens on the test object side. For conducting partial beams, injected on the sensor head side and having an optical path length difference, to the test object and returning partial beams injected on the test object side without an optical path length difference, a Fizeau interferometer having a nondiscrete design is associated with the optical fiber and compensates for the optical path length difference between the partial beams.04-15-2010
20090185163APPARATUS FOR INSPECTING FOOD - A food inspection apparatus 07-23-2009
20110199605SYSTEM AND METHOD FOR CHANGING SPECTRAL RANGE OF A CRYOGENICALLY COOLED DETECTOR - It is provided an optical system for changing a spectral range of a cryogenically cooled detector. The optical system allows selective spectral transfer of radiation, and provides a reflecting field of view at an undesired range directed towards cold surfaces. A removable spectral filter having a high transmittance at a first spectral range and a low transmittance at a second spectral range is disposed outside a cold shield. A reflective surface faces the detecting device and provides the detector a reflecting field of view at the second spectral range directed towards the cold shield, and a blackened cold skirt thereof. Alternatively, a dichroic mirror is disposed inside the cold shield and has a high reflectance at a first spectral range and a high transmittance at a second range. The detecting device includes a first arm and a second arm of the cold shield to accommodate respective optical channels. A removable selective mirror having a high reflectance at the first spectral range is disposed outside the cold shield. A reflecting field of view at the undesired spectral range directed towards a blackened surface of the cold shield or a thermo-electric cooler is provided.08-18-2011
20130215415SYSTEM AND METHOD FOR MEASURING PROPERTIES OF A THIN FILM COATED GLASS - A system for measuring properties of a thin film coated glass having a light source, a spectrometer, at least one pair of probes, a first optical fiber switch and a second optical fiber switch. The pair of probes includes a first probe located on one side of a glass sheet and a second probe located on the opposite side of the glass sheet, directly across from the first probe. The first and second optical fiber switches are adapted to couple either probe to the light source and/or the spectrometer. Because the design of the system is optically symmetrical, calibration may be performed without the use of a reference material such as a tile or mirror. Each of the first and second probes has a first leg and a second leg that are separated from each other by a distance n so that angled reflections may be detected.08-22-2013
20090201493OPTICAL MEASURING PROBE FOR PROCESS MONITORING - The invention relates to an optical measurement probe for process monitoring, having a distal end, arranged in the region of a process apparatus, with a light entrance opening, and a proximal end coupled to a spectrometer, wherein a shaft comprising a light-guiding connection between the distal and proximal ends of the measurement probe is arranged between the two ends. The measurement probe is characterized in that the measurement probe has, in its distal region relative to the shaft and/or the proximal end, a reduced external diameter (FIG. 08-13-2009
20100091266TOTAL REFLECTION TERA HERTZ WAVE MEASURING APPARATUS - A total reflection terahertz wave measuring apparatus 04-15-2010
20090290144Apparatus and method for measuring concentrations of fuel mixtures using depth-resolved laser-induced fluorescence - The apparatus for measuring concentrations of fuel mixtures using depth-resolved laser-induced fluorescence is a fluorometer equipped with a sample container holder that is movable in the path of the beam from the light source. Fluorescent emissions from the sample mixture pass at 90° to the excitation light path through a slit that is narrow enough that the emission intensity is effectively produced by a thin layer of the sample and focused on a monochromator, with successive thin layers receiving nonuniform excitation radiation due to reduction of intensity along the excitation light source path with increasing depth penetration and due to reabsorption of emitted fluorescence from adjacent layers. The method has a first mode in which the emission spectrum is scanned at a fixed depth, and a second mode in which the sample is moved relative to the emission monochromator slit to vary the depth while keeping the emission wavelength fixed.11-26-2009
20090290142Detection of Materials Based on Raman Scattering and Laser-Induced Fluorescence By Deep UV Excitation - A system and method are provided for detecting presence of a material of interest on a surface or in a space using spectroscopic techniques. A beam of ultraviolet light is directed to the surface or space to achieve photodissociation of a material of interest in order to produce photofragment molecules that fluoresce when excited by ultraviolet light. Raman scattering of the parent target material and laser-induced fluorescence of the daughter photofragments are collected from the surface or space that may be induced by the beam of ultraviolet light. Raman spectra and fluorescence spectra are generated from the captured Raman scattering and fluorescence. The fluorescence spectra associated with the daughter photofragment molecules and the Raman spectra of the parent target material are analyzed to determine presence of the material of interest on the surface or in the space.11-26-2009
20090273772LIGHT REFLECTING MASK, EXPOSURE APPARATUS, AND MEASURING METHOD - A light reflecting mask includes a reflecting layer which is provided on a substrate and reflects light, an absorbing layer which is provided on the reflecting layer and absorbs light, a device pattern which is formed in a first region of the absorbing layer, and a reflectance measuring pattern which is formed in a second region of the absorbing layer. The reflectance measuring pattern is a diffraction grating.11-05-2009
20110199604OPTICAL FIBER HYDROGEN DETECTION SYSTEM AND METHOD - A sensing system and method to detect or measure presence of hydrogen, including exposing a sensing fiber consisting essentially of an optical fiber to an environment; and detecting a characteristic of the sensing fiber at or in a structure and at one or more wavelengths where the characteristic changes with the presence of hydrogen.08-18-2011
20090262333In line thickness measurement - This invention relates to an apparatus and method for measuring the thickness of mold components and/or lenses during a manufacturing process. In particular, the present invention uses fiber optic interferometry to measure the center thickness of ophthalmic lenses created by a double-sided molding process.10-22-2009
20090262332HIGH-THROUGHPUT SPECTRAL IMAGING AND SPECTROSCOPY APPARATUS AND METHODS - Disclosed are high-throughput spectral imaging and spectroscopy apparatus and methods that acquire the property information of measured substance's UV-visible and infrared radiation through using at least one substantially uniform monochromatic incident irradiation source and spatial resolved array detector. The high-throughput analysis is achieved by acquiring a parallel spectral imaging and spectroscopy over a library element substrate. The apparatus and methods include both hardware and software for achieving both spectral imaging and spectroscopic analysis.10-22-2009
20090284732Apparatus and method of using thermochromic and photochromic indicators - The present is directed to an apparatus and method to monitor water treated with the SODIS process and comprises a container and an indicator element which is either affixed, applied or embedded to the container or the container's cap. The, indicator element comprise of at least one thermochromic indicator and at least one photochromic indicator.11-19-2009
20090290143Evaluating a Cleaning Solution Using UV Absorbance - A process for evaluating a cleaning solution is described. The process includes: (i) subjecting a solution, including a solute and a solvent, to sonic energy to create a sonicated solution; (ii) measuring UV absorption of the sonicated solution to produce a sample UV absorbance spectra; (iii) obtaining a reference solution, which includes a solute concentration that is similar to that of solute concentration in the sonicated solution; (iv) measuring UV absorption of the reference solution to produce a reference UV absorbance spectra; (v) scaling the reference UV absorbance spectra to the sample UV absorbance spectra at a lower range of the UV spectrum; (vi) subtracting from the reference UV absorbance spectra the sample UV absorbance spectra to produce a differential UV spectra; and (vii) evaluating at or near a peak of the sample UV absorbance spectra the differential UV absorbance spectra to determine whether the sonicated solution is activated.11-26-2009
20090051898NON-INVASIVE PROBE FOR MEASURING BODY COMPONENTS AND A NON-INVASIVE BODY COMPONENT MEASUREMENT SYSTEM INCLUDING THE NON-INVASIVE PROBE - A non-invasive probe for measuring body components, and a non-invasive body component measurement system including the non-invasive probe is provided. The non-invasive probe includes an input light transferring unit for transferring an input light emitted from a light source; a light splitting unit for splitting the input light into a plurality of living body incident lights; a light condensing unit for condensing the plurality of living body incident lights, so that the plurality of living body incident lights can be irradiated onto a plurality of measuring points, each measuring point corresponding to one of the plurality of living body incident lights; and an output light transferring unit for transferring a plurality of output lights, which each correspond to the one of the plurality of measuring points and, which are obtained by irradiating the plurality of living body incident lights, to a spectrometer that classifies the output lights by wavelength.02-26-2009
20080212073POLYMERIC DEVICE SUITABLE FOR ULTRAVIOLET DETECTION - The present invention relates to a flow cell (09-04-2008
20080212076Apparatus and method for testing infrared camera - An apparatus for testing infrared cameras includes: a cover plate which has a plurality of holes formed therethrough and arranged in line in a horizontal direction at a regular interval, the cover plate being adapted to emit an amount of infrared light; and an emission source which is disposed in parallel to and behind the cover plate as viewed from infrared cameras to be tested, the emission source being adapted to emit a different amount of infrared light when compared with the cover plate.09-04-2008
20080212072Photothermal Test Camera Provided With An Optical Device For Extending A Laser Beam Section - The inventive photothermal test camera (09-04-2008
20120293790SPECTRAL SENSOR FOR CHECKING DOCUMENTS OF VALUE - A spectral sensor for inspecting value documents, includes an illumination device for illuminating the value document, imaging optics and a detection device. The illumination device contains a plurality of light sources with emission spectra that differ from one another, and which are switched on and off in succession, to illuminate a region of the value document with an illumination sequence consisting of light pulses with different emission spectra. One measured value is detected for each of the light pulses to record the spectral intensity distribution of the detected light. The plurality of light sources cover a section of the near infra-red spectral range and/or a section of the visible spectral range in such a way that the spectral sensor can record a spectral intensity distribution in the section of the near infra-red spectral range and/or in the section of the visible spectral range.11-22-2012
20120293789METHOD AND SYSTEM FOR OPTICALLY INSPECTING PARTS - A method and system for optically inspecting parts are provided wherein the system includes a part transfer subsystem including a transfer mechanism adapted to receive and support a part at a loading station and to transfer the supported part so that the part travels along a first path which extends from the loading station to an inspection station at which the part has a predetermined position and orientation for inspection. An illumination assembly simultaneously illuminates a plurality of exterior side surfaces of the part with a plurality of separate beams of radiation. A telecentric lens and detector assembly forms an optical image of at least a portion of each of the illuminated side surfaces of the part and detects the optical images. A processor processes the detected optical images to obtain a plurality of views of the part which are angularly spaced about the axis of the part.11-22-2012
20100195090DEVICE FOR MEASURING THICKNESS OF PAINT FILM IN NON-CONTACTING MANNER - A non-contacting type paint film thickness measuring device includes a paint film thickness measuring unit having a terahertz pulse light generating portion for generating a terahertz pulse light, a first optical system for collimating and focusing an incident terahertz pulse light that is the terahertz pulse light generated by the terahertz pulse light generating portion to an object whose paint film thickness is measured, a second optical system for receiving a terahertz echo pulse that is the incident terahertz pulse light collimated and focused to the object in the first optical system and reflected at the object, a pulse width shortening portion for shortening a pulse width of the terahertz echo pulse, and a detecting portion for detecting electric field amplitude-time resolved waveform of the terahertz echo pulse whose pulse width is shortened by the pulse width shortening portion.08-05-2010
20100060879Analytical Apparatus - Apparatus for analysing a liquid sample (03-11-2010
20110205527Dynamic power control, beam alignment and focus for nanoscale spectroscopy - Dynamic IR radiation power control, beam steering and focus adjustment for use in a nanoscale IR spectroscopy system based on an Atomic Force Microscope. During illumination with a beam from an IR source, an AFM probe tip interaction with a sample due to local IR sample absorption is monitored. The power of the illumination at the sample is dynamically decreased to minimize sample overheating in locations/wavelengths where absorption is high and increased in locations/wavelengths where absorption is low to maintain signal to noise. Beam alignment and focus optimization as a function of wavelength are automatically performed.08-25-2011
20080239284Application of crossed teflon diffuser to coatings on oriented surfaces - A system and method for measuring coating thickness upon a substrate containing directionally oriented elements is disclosed. A near infrared light is directed upon the coating and reflected near infrared light is collected to determine the coating thickness. A pair of stacked and crossed diffuser elements is placed between the light source and the sample, and between the sample and the reflected near infrared light collector to improve the accuracy of the measurement, especially for coating thickness of less than about 2 mils and for coatings on substrates containing directionally oriented components. Each diffuser element is formed of a polytetrafluoroethylene fluoropolymer (PTFE) film.10-02-2008
20110141454Method for multi-spectral detection of aerosols - A system and method for sampling constituents in air including counting particles in the air to be sampled; collecting samples of accumulated particles; measuring UV response of a sample of accumulated particles only if the particle count exceeds a predetermined threshold; measuring IR response of that sample; and indicating a threat alarm if the IR response matches that of a target within a predetermined threshold.06-16-2011
20100128256OPTICAL CELL - A method of optically analysing a sample, which method comprises directing one or more frequencies of electromagnetic radiation (EMR) through a sample and onto a partially reflective surface (05-27-2010
20120287418High-Accuracy Mid-IR Laser-Based Gas Sensor - A gas sensor system is provided, comprising: a gas cell operable so as to receive a sample gas; a vacuum system fluidically coupled to the gas cell operable to maintain the sample gas within the gas cell at a sub-ambient pressure; a pressure sensor operable to sense a pressure of the sample gas; a thermally insulated enclosure having the gas cell therein; a heat source or heat exchanger operable to influence an interior temperature of the thermally insulated enclosure; a light source within the thermally insulated enclosure operable to provide a mid-infrared (mid-IR) light into and through the gas cell; a photodetector within the thermally insulated enclosure operable to receive the attenuated mid-IR; and a control system electronically coupled to the vacuum system and to the pressure sensor operable to maintain the sample gas within the gas cell at the predetermined pressure to within one torr (1 Torr).11-15-2012
20080278708NANOCOMPOSITE MATERIAL FOR DIRECT SPECTROSCOPIC DETECTION OF CHEMICAL VAPORS - Method and material for spectroscopic detection of organic chemicals. The material is a substantially optically transparent solid, such as ZnS, having a high surface area for adsorption of an analyte, such as organic chemical vapors. The solid material preferably has metal nanoparticles, such as gold, silver or copper nanoparticles, deposited on the surface for signal enhancement. A template compound, such as cetyl trimethyl ammonium bromide and alkoxylate block polymers, may be used during the material synthesis, such as reacting zinc chloride and sodium sulfide in the presence of the template compound, and later removed through calcination and washing to achieve the high surface area. The method of use includes collecting an analyte on the material and detecting the spectroscopic response of the analyte while it is collected on the surface. The mechanism of collection may include adsorbing, absorbing, and preconcentrating. Preferably, the spectroscopic response is selected from infrared spectra or ultraviolet-visible spectra.11-13-2008
20100271618CARRIER CONCENTRATION MEASURING DEVICE AND CARRIER CONCENTRATION MEASURING METHOD - A nondestructive carrier concentration measuring device (10-28-2010
20080304047Imaging Apparatus for IR Four-Wave Mixing Polarization Microscopy - The present invention relates to an imaging apparatus for IR four-wave mixing polarization microscopy. The imaging apparatus comprises a pump beam source for generating an infrared pump beam; a probe beam source for generating a probe beam (search beam); a polarizer for linearly polarizing the pump beam and probe beam; a beam combiner which synchronizes temporally and overlaps spatially the polarized pump beam and probe beam on the same axis; a scanner for two-dimensionally scanning the combined pump beam and probe beam; an optical focusing system for focusing the scanned pump beam and probe beam on a local point of the sample; a collecting optical system for collecting the beam which is formed by that the focused beams are interacted with the sample and of which phase is anisotropically retarded by nonlinear birefringence of the sample and forming a parallel beam; a dichroic beam splitter for removing the infrared pump beam out of the parallel beam and splitting the probe beam of which phase is anisotropically retarded; a polarizing beam splitter for converting the split and ansotripically phase-retarded probe beam into linerly polarized beams having their axes perpendicular to each other; a photodetector for detecting an intensity of each of the converted linerly polarized beams; a polarization differential detector for detecting a polarization difference based on the detected intensities of the linerly polarized beams; and a data analyzer for acquiring the detected polarization difference signal and extracting a spectrospcopic information corresponding to the strength of molecular vibrational coherence of the sample.12-11-2008
20080266546Device for Analyzing Samples - The invention relates to a device for analyzing one or more samples for the presence, amount or identity of one or more analytes in the samples, whereby the device comprises a focal microstructure for improving the signal/background ratio of an optical detection of the analytes.10-30-2008
20090316139BIODIESEL/DIESEL BLEND LEVEL DETECTION USING ABSORBANCE - Described herein are embodiments of a method and device for determining the relative amounts of biodiesel and diesel in a biodiesel/diesel blend without separating the biodiesel from the diesel. Embodiments of the method comprise providing a device for measuring absorbance of the blend, measuring absorbance of the blend at one or more wavelengths, and determining the relative amounts of biodiesel and diesel in the blend from the absorbance. Embodiments of the device comprise a light source and a detector for detecting light transmitted through a sample of a biodiesel/diesel blend. Typically the device includes a data analyzer for computing relative amounts of biodiesel and diesel in the blend. Some embodiments of the device further comprise one or more filters, which allow only light of a particular wavelength or wavelengths to pass through the filter.12-24-2009
20090316138METHOD AND INSTRUMENTATION FOR DETERMINING A PHYSICAL PROPERTY OF A PARTICLE - Physical property determination of a particle or classification of the particle as a function of the physical property by evaluating scattered light profile from a single particle is disclosed. The particle may include chemical structures that vibrate as a function of a physical property of the particle. The physical property may include an absorptive property of the particle or a chemical composition. From a detected scattered light spectrum, at least two anomalous dispersive regions may be identified. The physical property of the particle may be determined as a function of the at least two regions. A system employing the physical property determination can achieve sensitivities useful for low particle density applications such as detection for biological and chemical agents.12-24-2009
20090316137LIVING BODY INGREDIENT CONCENTRATION MEASURING INSTRUMENT - A device for measuring the concentration of a biological constituent based on infrared radiation emitted by a subject's eardrum with the influence of the eardrum's thickness taken into account is provided.12-24-2009
20090153838Conveyor System - A conveyor system comprises means for conveying a sample at a controlled velocity between functions of a production line and through an interrogation zone, means for generating at least one beam of electromagnetic radiation of a terahertz frequency and directing the beam through the interrogation zone, means for detecting the electromagnetic radiation reflected from or transmitted through the sample as it moves through the interrogation zone, and means for analyzing the detected electromagnetic and for outputting a signal to at least one of the functions in dependence on the result of the analysis.06-18-2009
20100265493Pulsed Lasers in Frequency Domain Diffuse Optical Tomography and Spectroscopy - A diffuse optical tomography system incorporating a mode-locked, tunable laser produces pulsed light that may be used to interrogate tissue with high spatial and spectral resolution. The detection signal may be heterodyne shifted to lower frequencies to allow easy and accurate measurement of phase and amplitude. Embodiments incorporating wavelength-swept, tunable, lasers and embodiments using broadband photonic fiber lasers with spectrally-sensitive detectors are described.10-21-2010
20080291426OPTICAL MEASUREMENT OF SAMPLES - We disclose apparatus that includes: (a) an enclosure including an aperture; (b) a prism mounted in the enclosure so that a surface of the prism is exposed through the aperture; (c) an optical assembly contained within the enclosure, the optical assembly including a radiation source and a radiation detector, the source being configured to direct radiation towards the prism and the detector being configured to detect radiation from the source reflected from the exposed surface of the prism; and (d) an electronic processor contained within the enclosure, the electronic processor being in communication with the detector. The apparatus can be configured so that, during operation, the electronic processor determines information about a sample placed in contact with the exposed surface of the prism based on radiation reflected from the exposed prism surface while it is in contact with the sample.11-27-2008
20110007302Hard copy re-emission color measurement system - Hard copy re-emission color measurement system, comprising a light arrangement for emitting light onto a hard copy, a light detector arranged to detect light re-emitted by the hard copy, and a control circuit configured to process the detected re-emitted light. The light arrangement is arranged to separately and simultaneously emit a first light having wavelengths longer than an ultraviolet wavelength and a second light having wavelengths in the ultraviolet range. The light arrangement is provided with a light guide arranged to guide the first and second light on an at least partly overlapping region on a hard copy.01-13-2011
20080285011APPARATUS FOR MEASURING CHEMICAL LEVELS USING pH SHIFT - An apparatus for use in measuring the free chlorine level in a solution of halogenated pool/spa water includes a pH adjusting device for producing a first sample of said solution having a first selected pH and a second sample of said solution having a second selected pH, as well as a spectral analyzer for determining first and second ultraviolet light (UV) transmissivity values for each of the first and second samples. An electronic processor receives the first and second transmissivity values and determines the free chlorine or bromine level using those values.11-20-2008
20080285012METHOD FOR MEASURING CHEMICAL LEVELS USING pH SHIFT - A method of measuring the free chlorine level in a solution of chlorinated pool/spa water comprises a first sample of said solution having a first selected pH and a second sample of said solution having a second selected pH and determining first and second ultraviolet light (UV) transmissivity values for each of the first and second samples. The first and second transmissivity values are then used to determine the free chlorine level.11-20-2008
20120092647OPTICAL SENSING FRAME AND DISPLAY DEVICE THEREWITH - The present invention relates to display devices, and more particularly to an optical sensing frame in which an infrared sensor module is fastened to a case top with a bracket to secure an assembly margin and prevent the infrared sensor module from mismatching with a liquid crystal display module by relative movement; and a display device therewith, the optical sensing frame includes a case top having a frame shaped upper side, and sides bent and extended from four sides of the upper side perpendicular thereto, first to third brackets fastened to an inside of the upper side of the case top at three corners thereof respectively, and an infrared sensor module placed in each of the first to third brackets.04-19-2012
20110205529Cell For Light Source - A cell for a vacuum ultraviolet plasma light source, the cell having a closed sapphire tube containing at least one noble gas. Such a cell does not have a metal housing, metal-to-metal seals, or any other metal flanges or components, except for the electrodes (in some embodiments). In this manner, the cell is kept to a relatively small size, and exhibits a more uniform heating of the gas and cell than can be readily achieved with a hybridized metal/window cell design. These designs generally result in higher plasma temperatures (a brighter light source), shorter wavelength output, and lower optical noise due to fewer gas convection currents created between the hotter plasma regions and surrounding colder gases. These cells provide a greater amount of output with wavelengths in the vacuum ultraviolet range than do quartz or fused silica cells. These cells also produce continuous spectral emission well into the infrared range, making them a broadband light source.08-25-2011
20080316467Device and Method for Monitoring Multiple Chemical Samples with a Fluorescent Tube - A monitoring device is described for multiple chemical reactions in multiple test containers. Each container contains chemical reagents and at least one fluorescence dye indicator capable of changing its fluorescent characteristics due to the chemical reaction. A single cylindrical ultraviolet (UV) cold cathode fluorescent (CCFL) tube is utilized. Multiple test containers (e.g., 8) are placed along the tube of the CCFL. The UV light emerging from the CCFL interacts with the dye indicator in each of the containers to yield interactive light beams that can be detected by signal photo sensors. In order to compensate for the light variations occurring along the tube, a reference photo sensor is placed for each container location along the tube to directly detect the signal from the CCFL. By normalizing the signal generated by the signal photo sensor to the signal of the corresponding reference photo sensor, the value of the normalized signal is independent of any light source variations along the tube due to CCFL aging and repetitious power switching. Consequently, the normalized signals only correspond to chemical variations occurring in the test containers.12-25-2008
20110267600EXAMINING APPARATUS - In an examining apparatus or method, values of thickness and characteristic of an object, or distributions thereof can be simultaneously acquired. The examining apparatus includes a portion 11-03-2011
20110267599SYSTEMS, METHODS, DEVICES, AND COMPUTER READABLE MEDIA FOR TERAHERTZ RADIATION DETECTION - Systems, devices, methods, and computer-readable media relating to terahertz radiation detection are disclosed. A method of detecting terahertz radiation may include transmitting a reference beam and a signal beam through a common-path interferometer. The method may further include transmitting a terahertz beam through a target object. Furthermore, the method may include causing the signal beam and the terahertz beam to simultaneously propagate through an electro-optical element within the common-path interferometer after transmitting the terahertz beam through the target object to induce a phase delay between the signal beam and the reference beam. In addition, the method may include calculating the phase delay and calculating an amplitude of an electric field of the terahertz beam from the phase delay.11-03-2011
20100141932Controlling A Projected Pattern - Systems and methods to control projection of a pattern are provided. A particular method includes receiving first three-dimensional coordinates that specify one or more locations on a surface of a workpiece where the one or more locations correspond to a part definition to be projected onto the surface. The method also includes computing scan angles for a scanning system based on the first three-dimensional coordinates. The scan angles specify angles used by the scanning system to direct a beam of light to project the part definition onto the surface. The method also includes sending control signals to the scanning system based on the scan angles.06-10-2010
20110205530DETECTING ELEMENT, DETECTING DEVICE, AND OXYGEN CONCENTRATION TEST DEVICE - Provided is a detecting element that detects a parameter for a predetermined gas or liquid in a surrounding atmosphere by being excited by excitation light and generating light corresponding to the surrounding atmosphere, the detecting element including: a substrate; and nanoscale crystal structures formed on the substrate and constituted by a compound semiconductor light emitting element having a heterostructure well layer, wherein when the nanoscale crystal structures adsorb atoms or molecules of the predetermined gas or liquid, there is distortion of a band of a structure with a smaller bandgap width in the well layer, this distortion brings about a change in transition energy, and this change brings about a change in at least one of an intensity and a wavelength of light generated by the well layer, thereby indicating the parameter for the gas or the liquid.08-25-2011
20090161092MULTIDIMENSIONAL SPECTROMETER - A multidimensional spectrometer for the infrared, visible, and ultraviolet regions of the electromagnetic spectrum, and a method for making multidimensional spectroscopic measurements in the infrared, visible, and ultraviolet regions of the electromagnetic spectrum. The multidimensional spectrometer facilitates measurements of inter- and intra-molecular interactions.06-25-2009
20090185161Optical Measurement Apparatus And Wideband Light Source Apparatus Employable Therein - The present invention relates to an optical measurement apparatus and wideband light source apparatus equipped with a structure for making it possible in optical measurement utilizing light in a near-infrared region to expand the measurement range to the longer wavelength side in the near-infrared region. The optical measurement apparatus comprises a wideband light source apparatus for outputting irradiation light to irradiate an object to be measured, and a detector for detecting the light arriving from the object irradiated with the irradiation light. The wideband light source apparatus comprises a light source section, and an optical fiber for expanding the spectrum width in an intensity spectrum of seed light from the light source section. In particular, the wideband light source apparatus outputs light having an intensity spectrum with an expanded spectrum width within the optical fiber as irradiation light so as to maintain such a spectrum intensity as to compensate for the decrease in light-receiving sensitivity of the detector in a wavelength region in at least a part of a sensitivity-decreasing region of 2 μm to 3 μm where the light-receiving sensitivity of the detector decreases in the near-infrared region.07-23-2009
20120069325DEVICE FOR OPTICALLY SCANNING AND MEASURING AN ENVIRONMENT - With a device for optically scanning and measuring an environment which is designed as a laser scanner, with a light emitter, which emits an emission light beam, with a light receiver which receives a reception light beam which is reflected by an object in the surroundings of the laser scanner or scattered otherwise, with a control and evaluation unit which determines the distance to the object for a multitude of measuring points, wherein the emission light beam is a superposition of three laser beams having different wave lengths, which define the three-dimensional color space.03-22-2012
20090185165METHOD OF INSPECTING FOOD AND INSPECTION APPARATUS IMPLEMENTING THE SAME - A food inspection apparatus of the present invention, which allows throughput improvement, comprises a light source unit 07-23-2009
20110222049METHOD AND DEVICE FOR TAKING A SAMPLE - Method and device for taking and measuring a sample of a material of a process, for example, a granulation process. The material to be measured is allowed to accumulate as free fall into the measuring chamber (09-15-2011
20090257046METHOD AND DEVICE FOR IR SPECTROSCOPY MEASUREMENTS WITH FIBER OPTIC NEEDLE PROBE - A method of non-destructively determining the condition of a material, said method including providing an elongated probe containing a plurality of optical fibers, said elongated probe coupled to an infrared spectrometer, said tip of said elongated probe positioned near said material, said elongated probe including said tip having a width of less than about 2.0 mm; and, making an infrared spectroscopy measurement of said material by providing infrared light from said infrared spectrometer through at least one of said plurality of optical fibers and collecting at least a portion of said infrared light reflected from a material juxtaposed near said tip through at least another of said plurality of optical fibers to provide said reflected light to said infrared spectrometer.10-15-2009
20090257047WATER IN OIL MEASUREMENT USING STABILIZER - A method for determining an amount of polar substance in a non-polar media includes adding a surfactant to increase a dispersion of the polar substance in the non-polar media and to increase the optical absorbance of the polar substance in the non-polar media to create a sample, passing an initial optical spectrum through the sample, measuring a resultant optical spectrum exiting the sample, relating the resultant optical spectrum to a predetermined quantitative calibration, and determining a concentration of the polar substance in the non-polar media based on the relation of the resultant optical spectrum to the quantitative calibration.10-15-2009
20090059204METHOD AND APPARATUS FOR INSPECTING OBJECTS USING MULTIPLE IMAGES HAVING VARYING OPTICAL PROPERTIES - An automated object inspection system is presented. The inspection system includes an imaging system to produce at least two images of said object having different optical properties and an analyzer coupled to the imaging system to receive the images and to perform a variety of inspection operations on said images. The imaging system may produce images of the object under inspection in the visible range having varying exposure values. A vision engine included in the analyzer may combine said images through an algorithmic process into one image having high light dynamic range. Alternatively, the imaging system may produce images of the object in the visible or non-visible electromagnetic range. The analyzer may perform inspection routines on said images. An imaging system capable of producing digital video is presented, wherein each frame of video produced by said camera is composed of multiple images having different optical properties.03-05-2009
20090015820Method and apparatus for the analysis of foreign gas phase in containers - The invention relates to a method and an apparatus for the analysis of foreign gas phases in containers, e.g. water containers, in particular to discard contaminated containers. In order to achieve an efficient and reliable detection of foreign gas phases it is recommended that at least one gas sample extracted from the container is analyzed spectroscopically via UV spectroscopy. An associated apparatus thereby provides measuring equipment for the spectrometric analysis of the foreign gases by means of UV spectroscopy.01-15-2009
20130215414SPLIT FEED DISTRIBUTOR WITH FEED SUPPLIED FROM BELOW AND THROWN CIRCUMFERENTIALLY - A feed distributor used in fish ponds with feed supplied from below and thrown circumferentially comprises a feed-supplying mechanism, a feed-throwing mechanism and a feed-conveying mechanism by which feed supplied from said feed-supplying mechanism is delivered to said feed-throwing mechanism; the feed-supplying mechanism has a hopper which connects with a feed container above and a feed conveyor below. The feed-throwing mechanism has a launching disc with a sealed top, feed outlets in its circumference and a feed inlet below. The launching disc is disposed on a hollow shaft with an inner hole opposed to said feed inlet. The feed-throwing mechanism is disposed in pond and the feed supplying mechanism settles on a bank, feed is sucked into the feed-throwing disc and thrown circumferentially under negative pressure caused by rotation of the launching disc, and has a low crushing rate.08-22-2013
20090231571APPARATUS AND METHOD FOR OBTAINING INFORMATION RELATED TO TERAHERTZ WAVES - To provide an apparatus capable obtaining a temporal waveform of terahertz waves transmitted through or reflected by a sample in a set region. A delay unit is configured to change a timing at which the detection unit detects terahertz waves transmitted through or reflected by a sample, which is originated from terahertz waves generated by a generation unit. A waveform obtaining unit is configured to obtain a temporal waveform of the transmitted terahertz waves which are obtained by using the delay unit. The delay unit, of which more than one may be used, is controlled so that the detection unit detects the transmitted terahertz waves in an area related to the temporal waveform set on the basis of information related to the sample that is pre-stored in the storage unit. Then, a temporal waveform of the transmitted terahertz waves in the area is obtained.09-17-2009
20110228258METHOD OF APPARATUS FOR DETECTING PARTICLES ON A SPECIMEN - A method and apparatus of detecting a defect by inspecting a specimen in which a surface of a specimen on which plural patterns are formed is illuminated with an elongated shape light flux from one of plural directions which are different in elevation angle by switching an optical path of the light flux emitted from an illuminating light source in accordance with a kind of defect to be detected. Plural optical images of the specimen illuminated by the elongated shape light flux are captured with plural image sensors installed in different elevation angle directions by changing an enlarging magnification in accordance with a density of the pattern formed on the sample in an area irradiated with the illuminating elongated shape light flux. A defect on the specimen is detected by processing the images captured by the plural image sensors.09-22-2011
20110228257HOLLOW CORE FIBER LASER INDUCED INCANDESCENCE - The present disclosure relates to measurement techniques utilizing laser induced incandescence, and specifically to laser induced incandescence measurement techniques utilizing a hollow core fiber.09-22-2011
20090103075Method For Measuring Chroma Value By a Colorimeter - A method for measuring chroma value by colorimeter to solve the drawbacks of conventional technologies, such as an inaccurate illuminant and the filter of color-matching function is difficult to be deposited and manufactured within an filter mod colorimeter, and an expensive spectrometer used within an spectrum mode calorimeter. The present invention does not need the spectrometer and the filter of color-matching function, and can measure an accurate chroma value of an object by using a multi-band illuminant illuminating the object and a power meter. Besides, the multi-band illuminant can be adjusted the illumination condition of standard illuminator under different color temperature, and measure the chroma value of the object under different color temperature. The accuracy of the measured chroma value is up to the level of the spectrum mode colorimeter, and the price is cheaper than the spectrum mode calorimeter.04-23-2009
20090213361Supporting Remote Analysis - This disclosure relates to optical measurement and identification of samples.08-27-2009
20090219511WAVEGUIDE, AND DEVICE AND DETECTION METHOD USING THE SAME - An object of the present invention is to provide a low loss waveguide. There is provided a waveguide including a single line formed by a conductive body, and a dielectric member covering the single line, the dielectric member having a gap.09-03-2009
20090219512OPTICAL ANALYSIS SYSTEM AND ELEMENTS TO ISOLATE SPECTRAL REGION - A method of selecting components for a multivariate optical computing and analysis system to isolate a spectral region includes selecting a spectral region of interest; selecting a spectral element with a predetermined transmission characteristic to control a spectral range of an illumination source; illuminating a sample with the illumination source; and analyzing an optical frequency returned by the sample relative to the spectral region of interest.09-03-2009
20120105829INFRARED SENSOR MODULE, TOUCH SENSING METHOD THEREOF, AND AUTO CALIBRATION METHOD APPLIED TO THE SAME - An infrared sensor module, a touch sensing method thereof, and an auto calibration method applied to the same are disclosed, the touch sensing method includes turning on the infrared sensor module which includes a sensor block with a light receiving region and is arranged to be perpendicular to a surface of a display panel, the light receiving region being divided into m×n blocks (where, each of m and n is a natural number of two or more) arranged in m rows by n columns, each of the blocks having a plurality of light receiving pixels arranged in a row direction, scanning optical signals of each block, selecting the block having maximum output optical signals with respect to the blocks of each column, and summing the optical signals of the light receiving pixels of the block selected from the column.05-03-2012
20120105828Passive optical gaseous emissions sensor - A probe assembly for measuring the concentration of exhaust's emissions in a turbine engine. The probe assembly including a first probe member configured and operable to passively generate a beam of light wherein the wavelength of the beam of light is contingent upon the configuration of the first probe member. A second probe member positioned in the probe assembly to receive the beam of light generated by the first probe member, the second probe member configured and operable to attenuate the light passively generated from the first probe member contingent upon the gaseous species present in the exhaust emissions of the turbine engine.05-03-2012
20120105827COMBINED RAMAN AND IR FIBER-BASED SENSOR FOR GAS DETECTION - A double-pass fiber-optic based spectroscopic gas sensor delivers Raman excitation light and infrared light to a hollow structure, such as a hollow fiber waveguide, that contains a gas sample of interest. A retro-reflector is placed at the end of this hollow structure to send the light back through the waveguide where the light is detected at the same end as the light source. This double pass retro reflector design increases the interaction path length of the light and the gas sample, and also reduces the form factor of the hollow structure.05-03-2012
20090251686SPECTRUM-FORMING DEVICE ON AN OPTICAL SENSOR WITH SPATIAL REJECTION - Optical device comprising: a spatial filter means for eliminating, from the light rays emanating from an observed scene those coming from a direction or restricted range of directions in space, while letting through most of the light rays coming from said scene; means for varying the direction or the restricted range of directions in space in correspondence with which the spatial filter means eliminates said light rays; a spectral dispersion means for imparting to the light rays coming from said spatial filter means a deviation that is dependent on their wavelength; and an image detector for recording the light rays dispersed by said spectral dispersion means, each point on said image detector receiving light rays coming from said scene and having a different wavelength depending on the direction in space from which they come.10-08-2009
20100149520DEVICE AND METHOD FOR MEASURING THICKNESS OF PAINT FILM IN NON-CONTACTING MANNER - A non-contacting type paint film thickness measuring device includes a generating portion for generating a terahertz pulse light, a detecting portion for detecting the terahertz pulse light, a measured wave form in time-series obtaining portion for obtaining a measured wave form indicating an electric field intensity of a terahertz echo pulse light, and an intrinsic wave form in time-series obtaining portion, having an intrinsic electric field spectrum calculating portion and an intrinsic wave form in time-series calculating portion, for calculating an intrinsic wave form in time-series of an object.06-17-2010
20120194800Optical Sensor for Rapid Determination of Particulate Concentration - This invention provides methods and devices to measure particle suspension concentrations through the side wall of a container. Particle back-scatter readings are taken at light wavelengths that do not travel far through the medium. Detected scatter is related to actual particle concentration or standard O.D. values. The methods and devices allow particle concentration readings through containers not normally intended for use in such assays.08-02-2012
20080259314Inspection Device - An inspection device includes a light source emitting ultraviolet light onto a banknote conveyed on a conveyance path, a light source emitting infrared light onto the banknote, a photosensor for detecting light from the banknote, a light source control processing portion for controlling the light sources while individually switching the light sources at high speed, and a discrimination processing portion. The discrimination processing portion first imports each of two detection signals (output signals) from the photosensor, which are obtained by detecting light substantially within an identical period of time when the banknote is illuminated with the light through sequential lighting of the light sources and calculates an output ratio of the photosensor. Then the calculated output ratio of the photosensor is compared and collated with reference data preliminarily stored in a memory determining authenticity and denomination of the banknote.10-23-2008
20100157285METHOD AND DEVICE FOR MONITORING A COMBUSTION PROCESS - A method for monitoring a combustion process in the infrared wavelength range includes using a laser, which transmits a laser light beam along a measurement path in a certain wavelength range, which is selected in such a way that a gas therein to be detected in the combustion process has an absorption line, and that the emission wavelength of the laser detects the absorption line of the gas to be detected upon the tuning in the selected wavelength range. The concentration of the gas is determined as a function of the absorbed energy of the laser light beam. The intensity of the laser light beam is detected and is analyzed in order to determine the existence of a flame in the combustion process, and/or the quality of the flame.06-24-2010
20100157286NANOTHIN POLYMER FILMS WITH SELECTIVE PORES AND METHOD OF USE THEREOF - A method of preparing nanothin polymer films having uniform and selectively sized pores utilizing pore forming templates. Lipids and pore forming templates are dissolved into a first solution. The solvent is removed thereby creating a lipid bilayer with pore forming templates dispersed throughout. The bilayer is hydrated and monomers and crosslinkers are added to create a second solution. A nanothin film with pore forming templates is created through polymerization of said second solution. The pore forming templates are dissolved into a third solution by addition of a chemical in which the pore forming template is soluble, but the lipid bilayer is insoluble. This third solution is separated from the mixture leaving a nanothin polymer film with pores of a uniform thickness and surface area. In summary, the guided assembly method presented here suggests a new general strategy for the fabrication of nanothin materials with controlled permeability, which provides improvements over the currently existing technology.06-24-2010
20090051899DOPPLER ASYMMETRIC SPATIAL HETERODYNE SPECTROSCOPY - A Doppler Asymmetric Spatial Heterodyne (DASH) spectrometer includes an input aperture for receiving an input light; a collimating lens for collimating the input light into a collimated light; offset establishing means, including at least one grating, for i) receiving and splitting the collimated light into a first light wavefront in a first optical path and into a second light wavefront in a second optical path, ii) establishing an offset in a light wavefront path distance between the first and second optical path light wavefronts, and iii) diffracting and recombining the first and second optical path light wavefronts into an interference wavefront to form an interference image that includes a plurality of phase points of a heterodyned interferogram measured simultaneously over the path distance offset; and an output optics section comprising a detector for receiving the interference image and outputting an interference image pattern.02-26-2009
20100182591CELL, DEVICE COMPRISING THIS CELL AND METHOD FOR MEASURING THE AMOUNT OF INSOLUBLE PARTICLES IN A FLUID AND APPLICATIONS - The disclosure relates to a cell for measuring the amount of insoluble particles in a fluid that comprises a duct that passes through the cell, a filter for the particles contained in the fluid, the filter being positioned in the duct, an emitter capable of emitting an electromagnetic beam directed towards the insoluble particles concentrated on the filter, and a receiver capable of receiving the electromagnetic beam emitted by the emitter and reflected by the insoluble particles concentrated on the filter. The disclosure also relates to a device comprising this cell, to a method for measuring the amount of insoluble particles in a fluid and to applications thereof, in particular to the study of the oxidation stability of petroleum distillates, to the antioxidant capacity of additives of petroleum products and to the determination of the asphaltene content of petroleum products.07-22-2010
20100002224Method and apparatus for detecting organic materials and objects from multispectral reflected light - The present invention is a method of determining the presence of keratin, particularly hard keratin, such as exists in mammalian hair and feathers, and objects comprising such materials. The method of the present invention also includes displaying information derived from such a determination, as well as a measurement method followed by transmission of data to a remote processing site for analysis or display. The invention also includes devices for carrying out the determination, display and/or transmission.01-07-2010
20100259748METHOD FOR INSPECTING COATING FILM DEFECT IN RESIN-COATED FILM - The method for inspecting a resin-coated film of the present invention is a method for inspecting defects of a coating of a resin-coated film comprising a film and the coating formed by applying a resin solution on the film, in which the method is carried out by irradiating the coating with inspection light having a peak wavelength of emission intensity within the range of 385 to 415 nm and detecting reflected light of the inspection light, which can inspect defects of the coating of a resin-coated film with high accuracy.10-14-2010
20130215412INLINE OPTICAL SENSOR WITH MODULAR FLOWCELL - Inline optical sensor which includes a modular flowcell block with a flow passageway of predetermined diameter, interchangeable adapters for connecting flow lines with different internal diameters to the block, and an optical pathlength that can be adjusted both in fixed increments with window spacers and continuously with vernier adjusters, and a light source and an optical detector in modular housings which can be aligned both radially and axially. Thermal isolation is provided between the housings and the flowcell body, and air circulation further reduces temperature and condensation within the housings.08-22-2013
20130215413SYSTEM AND METHOD FOR MEASURING PROPERTIES OF A THIN FILM COATED GLASS - A system for measuring properties of a thin film coated glass having a light source, a spectrometer, at least one pair of probes, a first optical fiber switch and a second optical fiber switch. The pair of probes includes a first probe located on one side of a glass sheet and a second probe located on the opposite side of the glass sheet, directly across from the first probe. The first and second optical fiber switches are adapted to couple either probe to the light source and/or the spectrometer. Because the design of the system is optically symmetrical, calibration may be performed without the use of a reference material such as a tile or mirror.08-22-2013
20130215416SPECTROMETER - A spectrometer comprising:08-22-2013
20100220313Terahertz-infrared ellipsometer system, and method of use - The present invention relates to ellipsometer and polarimeter systems, and more particularly is an ellipsometer or polarimeter or the like system which operates in a frequency range between 300 GHz or lower and extending to higher than at least 1 Tera-hertz (THz), and preferably through the Infra-red (IR) range up to, and higher than 100 THz, including: 09-02-2010
20100225897OPTICAL SCANNING AND IMAGING SYSTEMS BASED ON DUAL PULSED LASER SYSTEMS - The invention relates to scanning pulsed laser systems for optical imaging. Coherent dual scanning laser systems (CDSL) are disclosed and some applications thereof. Various alternatives for implementation are illustrated, including highly integrated configurations. In at least one embodiment a coherent dual scanning laser system (CDSL) includes two passively modelocked fiber oscillators. The oscillators are configured to operate at slightly different repetition rates, such that a difference δf09-09-2010
20120242979CONCENTRATION MEASUREMENT METHOD AND CONCENTRATION MEASUREMENT APPARATUS - A concentration measurement method by an absorptiometric method which measures a concentration of a first solute component dissolved in a solution, in which the first solute component interacts with a solvent, includes: referring to an absorption coefficient (μ09-27-2012
20100238426TESTING METHOD OF SEMICONDUCTOR LASER AND LASER TESTING DEVICE - A testing method of a semiconductor laser emitting a wavelength under a test different from a reference wavelength in a given wavelength range includes: a first step of obtaining a length of an optical fiber under the test satisfying a reference dispersion condition at the wavelength under the test, based on the reference dispersion condition for the test and a unit dispersion amount of the optical fiber; and a second step of inputting a modulation signal that is a modulated laser light of the semiconductor laser having a wavelength as the wavelength under the test into an optical fiber having substantially the same length as the length obtained in the first step and evaluating an output of the optical fiber.09-23-2010
20110058156METHOD AND DEVICE FOR DETERMINING THE MASS AND/OR A MASS PROPORTION OF A WALL SECTION OF A PLASTIC BOTTLE - A method and device for the determination of the mass and/or the mass proportion of a wall section of a plastic bottle, in particular a section in the vicinity of the bottle shoulder and/or of the bottle neck, where, due to the fact that a relative mass distribution of the side wall is calculated from a distribution of the light transmission through the side wall of the bottle, the mass proportion of the wall section to be determined of the mass of the side wall can be determined with slight error based on the mass distribution even without calculation of the absolute mass values.03-10-2011
20110058155MOBILITY MEASURING APPARATUS, METHOD THEREFOR, AND RESISTIVITY MEASURING APPARATUS AND METHOD THEREFOR - A mobility measuring apparatus includes a storage unit that respectively stores a relationship between the mobility μ of carriers in a semiconductor and a decay constant γ of the carriers and a relationship between a reflectivity R of the semiconductor to a terahertz light and the decay constant γ of the carriers, a light radiating unit that radiates a terahertz light to the semiconductor as a sample, a detecting unit that detects a reflected light of the sample to the radiated terahertz light, a reflectivity calculating unit that calculates the reflectivity R03-10-2011
20110058154METHOD OF INFRARED INSPECTION FOR STRUCTURE, TEST SPECIMEN FOR INFRARED INSPECTION AND HEAT CONDUCTIVE MEMBER - A test specimen having a to-be-photographed surface and an attachment surface which is a back side thereof is produced, and attached to a structure. An artificial abnormal portion is provided between a to-be-inspected surface of the structure and the to-be-photographed surface of the test specimen. The to-be-photographed surface of the test specimen is photographed by the infrared camera. When a surface temperature difference between the abnormal and the sound portions increases to a certain level on the to-be-photographed surface, it is capable of discriminating between the abnormal and the sound portions by an infrared thermal image of the test specimen. In a time zone in which discriminating between the abnormal and the sound portions is capable, the to-be-inspected surface of the structure is photographed by the infrared camera. If there is a damage in the surface layer of the structure, a damaged position can be discriminated by an infrared thermal image.03-10-2011
20120194801MARKING AGENTS HAVING NARROW BANDS - A process for marking articles, wherein the article to be marked is contacted with at least one marker and the absorption spectrum of the at least one marker in contact with the article has at least one narrow band with a half-height width of <1500 cm08-02-2012
20100253933IN-LINE MERCURY DETECTOR FOR HYDROCARBON AND NATURAL GAS - A method and a device are presented for measuring the mercury content of hydrocarbon and natural gases in a continuous mode and in-situ in a gas production line in a real time mode, comprising diverting a gas sample from the gas production line in an optical flexible measuring cell for optical detection of the mercury present in the gas production line.10-07-2010
20100208241MEASURING DEVICE AND METHOD FOR ANALYZING THE LUBRICANT OF A BEARING - A measuring device for analyzing a lubricant of a bearing. The measuring device has an electromagnetic radiation emitter, a receiving element and a test area that is arranged between the emitter and the receiving element. The measuring device allows for current information on the condition of the lubricant in the bearing to be obtained. At least some sections of the test area are inside the bearing and the receiving element supplies a spectrum of electromagnetic radiation captured by the test area. Also, a bearing and a seal for the bearing and a method for detecting and monitoring the condition of the lubricant of a bearing.08-19-2010
20100053599APPARATUS AND METHOD FOR SPECTROSCOPY - Apparatuses and methods for performing spectroscopy and optical microscopy are disclosed. In at least one embodiment, a Raman spectrometer includes a vacuum ultraviolet light source configured to generate light having a wavelength within a window in the vacuum ultraviolet region of the electromagnetic spectrum within which a local minimum in the absorption coefficient of Oxygen occurs. The spectrometer also includes a lens device that receives a first portion of the generated light, directs at least some of the first portion of the generated light toward a target location, receives reflected light from the target location, and directs the reflected light toward a further location. The spectrometer further includes a dispersive device that receives at least some of the reflected light and outputs dispersed light produced based thereupon, and a camera module that is positioned at additional location, where the camera module receives at least some of the dispersed light.03-04-2010
20090251685Lens System - A fragmented lens system for creating an invisible light pattern useful to computer vision systems is disclosed. Random or semi-random dot patterns generated by the present system allow a computer to uniquely identify each patch of a pattern projected by a corresponding illuminator or light source. The computer may determine the position and distance of an object by identifying the illumination pattern on the object.10-08-2009
20090185164METHOD OF INSPECTING FOOD AND INSPECTION APPARATUS IMPLEMENTING THE SAME - A food inspection apparatus of the present invention, which allows the improvement of throughput, comprises a light source unit 07-23-2009
20110032515METHOD OF APPARATUS FOR DETECTING PARTICLES ON A SPECIMEN - A method and apparatus of detecting a defect by inspecting a specimen in which a surface of a specimen on which plural patterns are formed is illuminated with an elongated shape light flux from one of plural directions which are different in elevation angle by switching an optical path of the light flux emitted from an illuminating light source in accordance with a kind of defect to be detected. Plural optical images of the specimen illuminated by the elongated shape light flux are captured with plural image sensors installed in different elevation angle directions by changing an enlarging magnification in accordance with a density of the pattern formed on the sample in an area irradiated with the illuminating elongated shape light flux. A defect on the specimen is detected by processing the images captured by the plural image sensors.02-10-2011
20130135609Targeted Agile Raman System for Detection of Unknown Materials - The present disclosure provides for a system and method for detecting unknown materials. A test data set, which may comprise a hyperspectral data set, is generated representative of a first location. The test data set may be analyzed to determine a second location which may be interrogated using a Raman spectroscopic device to generate a Raman data set. The Raman data set may be analyzed to associated an unknown material with a known material such as: a chemical material, a biological material, an explosive material, a hazardous material, a drug material, and combinations thereof.05-30-2013
20100321671System for directly measuring the depth of a high aspect ratio etched feature on a wafer12-23-2010
20100182590Measuring Device And Method For Determining Optical Characteristic Variables For Verifying Photochemical And Electrochemical Degradatve Reactions - A measuring device for quantitative determination of optical characteristic values for detecting photo- and/or electrochemical decomposition reactions taking place on surfaces of photocatalytically active substrates.07-22-2010
20100182589SPECTRAL DETECTION METHOD AND DEVICE, AND DEFECT INSPECTION METHOD AND APPARATUS USING THE SAME - In spectral detection for detecting the shape of repeating pattern structures uniformly formed on a surface of a test object, it is advantageous to use light having a wide wavelength range in a short wavelength region. However, it is not easy to realize a relatively simple optical system capable of spectral detection of light having a wide wavelength range in a short wavelength region, namely in ultraviolet region. The present invention provides an inspection apparatus for detecting pattern defects. The inspection apparatus includes a spectral detection optical system capable of spectral detection of light in a wavelength range from deep ultraviolet to near infrared. The spectral detection optical system includes a spatially partial mirror serving as a half mirror and a reflecting objective provided with an aperture stop for limiting the angle and direction of light to be applied to and reflected by a test object.07-22-2010
20110026010Optical Coherence Tomographic Analysis - An optical coherence tomographic analysis system for analyzing a pharmaceutical delivery system comprising manufacturing means for manufacturing the pharmaceutical delivery system, the manufacturing means including at least one manufacturing process, and an optical coherence tomographic system having a light source that is adapted to direct a radiation beam to the pharmaceutical delivery system, whereby the radiation beam interacts with the pharmaceutical delivery system, the interaction including the emission of emitted light by the pharmaceutical delivery system, the interferometer being adapted to receive the emitted light from the pharmaceutical delivery system and construct an optical image of the pharmaceutical delivery system from the emitted light in real-time during manufacturing of the pharmaceutical delivery system.02-03-2011
20110032514Non-Dispersive Infrared Gas Analyzer - The invention relates to a NDIR-gas analyser comprising an infrared radiation source (02-10-2011
20110019182Apparatus for Photo Reduction of Contaminants in Blood and Blood Products with Calibration Means - An apparatus for irradiating blood or blood products, preferably with ultra violet or visible light, to reduce contaminants in the blood or blood products. A removable radiometer having light integrating chambers detects the light intensity, allowing the radiation characteristics of the apparatus to be calibrated. A control circuit uses the measurements to control the delivery of an effective dose of illumination to blood or blood products in a bag or container. One or more light integrating optical chambers in the radiometer allow a single light sensor to sense light across an entire field. Thermistors in the irradiating apparatus or the radiometer or both sense the temperature of photo sensors. The control circuit compensates for temperature-dependant variations in the output of the photo sensors.01-27-2011
20110019183OPTICAL ANALYZER AND WAVELENGTH STABILIZED LASER DEVICE FOR ANALYZER - Provided is an optical analyzer which can promote enhancement of measurement sensitivity, cost reduction, size reduction, structural flexibility, disturbance resistance, and the like, at the same time. A laser device to be used in such optical analyzer is also provided. An optical analyzer comprises a laser light source (01-27-2011
20110019180Enabling Spectrometry on IR Sensors - Various implementations of enabling spectroscopy on IR sensors are disclosed.01-27-2011
20110026012Optical System for Projecting an IR or UV Test Signal with Optical Alignment of the Projection Axis in the Visible Spectral Region - An optical system for testing IR or UV sensors, comprises input optics, output optics having a reticule disposed on the associated optical axis, a radiation source which emits radiation in the visual spectral region and in the infrared or ultraviolet spectral regions, and a beam splitter for simultaneously visualizing an object scene illuminated by the radiation source with the reticule through the output optics into the eye of an observer. The input optics comprise a lens, the imaging properties of which in the visual spectral region are equal to the imaging properties in the infrared or ultraviolet spectral region, and the beam splitter is a dichroic beam splitter.02-03-2011
20110026011OPTICAL POSITION DETECTION APPARATUS AND DISPLAY APPARATUS HAVING POSITION DETECTION FUNCTION - An apparatus for detecting a position of an object, includes: position detection light sources irradiating light onto the object; a light guide plate having light incident portions receiving the light therein and emitting it onto a detection area to form an intensity distribution of a light emission quantity of the light; a light detector having light receiving portions facing the detection area to receive the light reflected by the object; and a signal processing portion detecting the position of the object based on the intensity distribution; wherein the light guide plate has a plane shape with long-sides and short-sides; the light incident portions and the position detection light sources are installed on corner portions of the light guide plate; and the light incident portions have concavo-convex shapes and provided with deflection incident surfaces for deflecting a portion of the incident light in a direction following the long-sides through refraction.02-03-2011
20110019181METHOD AND DEVICE FOR ONE-SHOT MEASUREMENT OF THE TRANSIENT BIREFRINGENCE INDUCED BY A PERTURBATION LYING WITHIN THE TERAHERTZ FREQUENCY RANGE - The present invention relates to a method and a device for direct, non-deformed one-shot measurement of the transient birefringence induced in an optical medium by a perturbation lying within the terahertz frequency range. The aim of the present invention is to alleviate the drawbacks of the prior art by providing a one-shot measurement method and a one-shot measurement device, these being based on the spectral encoding/decoding principle, which are compatible with all short pulse (UV-NIR) laser sources. In this regard, the invention provides a one-shot method for measuring the transient birefringence induced in an optical medium (01-27-2011
20110116077EUV High Throughput Inspection System For Defect Detection On Patterned EUV Masks, Mask Blanks, And Wafers - Inspection of EUV patterned masks, blank masks, and patterned wafers generated by EUV patterned masks requires high magnification and a large field of view at the image plane. An EUV inspection system can include a light source directed to an inspected surface, a detector for detecting light deflected from the inspected surface, and an optic configuration for directing the light from the inspected surface to the detector. In particular, the detector can include a plurality of sensor modules. Additionally, the optic configuration can include a plurality of mirrors that provide magnification of at least 100× within an optical path less than 5 meters long. In one embodiment, the optical path is approximately 2-3 meters long.05-19-2011
20080304046Imaging Apparatus for Infrared Rays Nonlinear Molecular Vibrational Microscopy - The present invention relates to an imaging apparatus for infrared rays nonlinear molecular vibrational microscopy. The imaging apparatus comprises a pump beam source for generating an infrared pump beam; a probe beam source for generating a probe beam; a beam combiner which synchronizes temporally and overlaps spatially the pump beam and probe beam on the same axis; a scanner for two-dimensionally scanning the combined pump beam and probe beam; a first optical focusing system for focusing the scanned pump beam and probe beam on a local point of the sample; a first collecting optical system for collecting the beam of which phase is shifted by interaction with the sample and forming a parallel beam; a first dichroic beam splitter for removing the infrared pump beam out of the parallel beam and splitting the probe beam of which phase is shifted; a reference interferometer for splitting a part of the probe beam out of the beams scanned by the scanner and generating a reference probel beam; an interferometric beam combiner for combining the probe beam having the shifted phase and the reference probe beam; a photodetector for detecting an intensity of a molecular vibrational beam signal from the combined probe beam; and a data analyzer for acquiring the detected signals and extracting a spectrospcopic information corresponding to the strength of molecular vibrational coherence of the sample.12-11-2008
20110116079OPTICAL ABSORPTION GAS ANALYSER - An optical absorption gas analyser is provided for determining the concentration of a target gas in a sample, comprising: a chamber for containing the sample in use; an optopair, comprising a light emitting diode (LED) arranged to emit radiation into the chamber and a photovoltaic radiation detector, arranged to detect radiation transmitted through the chamber from the LED and to output a corresponding detection signal S05-19-2011
20090033912METHOD AND APPARATUS FOR READING IDENTIFICATION MARK ON SURFACE OF WAFER - An identification mark constituted of irregularities is formed on the surface of a wafer, which is sealed with a resin layer and a dicing tape may be adhered to the backside. Multiple infrared units irradiate infrared rays towards the surface of the wafer from the backside thereof, wherein they transmit through the wafer and are then reflected at the interface between the resin layer and the surface of the wafer, thus producing reflected rays. An image pickup device picks up an image of the interface including the identification mark based on reflected rays. Optical axes of the infrared units extend to cross the surface of the wafer in different directions; hence, the image pickup device receives only a part of reflected rays, which are reflected at the interface in a prescribed direction. A polarizer can be arranged in proximity to the infrared unit or the image pickup device.02-05-2009
20100141931METHOD AND DEVICE FOR QUANTITATIVELY DETERMINING THE SURFACE OPTICAL CHARACTERISTICS OF A REFERENCE OBJECT COMPRISED BY A PLURALITY OF OPTICALLY DIFFERENTIABLE LAYERS - A method and device to determine quantitatively the surface optical characteristics of an object of reference made up of a plurality of optically differentiable layers. The device includes lighting and image capture means, connected to analysing means which execute the method to obtain the parameters of the repair material components best fitting the optical characteristics of the dental environment of the subject under treatment. The result of the analysis through the method in the invention consists mainly in the identification of each one of the various materials which should constitute the different layers, as well as their respective thicknesses, and which are to lead to a dental repair with optimum optical characteristics. It is thus achieved that the repair be visually imperceptible, both under natural light and under ultraviolet light.06-10-2010
20110242523METHOD AND APPARATUS FOR MEASURING HEXAVALENT CHROMIUM IN WATER - Disclosed and claimed herein is an apparatus and method for measuring hexavalent chromium in water samples using a colorimetric method. The apparatus includes a means for correcting interference due to sample turbidity.10-06-2011
20100225898OPTICAL ASSEMBLY AND METHOD - An optical apparatus and method comprising a light source, an array detector for area imaging and an optical cell assembly. The optical cell assembly comprises a chamber which is arranged to receive a sample of a material including an analyte, a fluid inlet and a fluid outlet coupled to the chamber. A fluid dissolution medium stream passes through the chamber such that the sample can dissolve into the dissolution medium. The chamber is in at least one light path created between the light source and the array detector. The array detector comprises a two dimensional array of detector locations arranged to provide an output signal indicative of the light absorbance of the analyte within the chamber such that the output of the array detector is indicative of the concentration profile of the analyte near the surface of the sample.09-09-2010
20110122396PHOTONIC MEASUREMENT INSTRUMENT USING FIBER OPTICS - A photonic measurement system, such as an atomic absorption spectrometer, includes source, sample and detection modules that are interconnected by fiber optic cables. A first set of fiber optic cables guides light from one or more light sources in the source module to each of at least two analysis chambers in the sample module. A second set of fiber optic cables guides light from the analysis chambers to a detector in the detection module. The detector provides to a processing sub-system signals that correspond to intensities of the guided light. One analysis chamber is selected to perform a sample analysis at a given time, and the processing sub-system processes the signals associated with the selected analysis chamber as measurement signals. The processing sub-system may further process the signals associated with a given non-selected analysis chamber as reference signals.05-26-2011
20100220314Method and Hand-Held Color Measurement Device For Gauging A Color Measurement Chart - In a method for gauging a color measurement chart which includes at least one row of adjacently arranged color measurement fields, a hand-held color measurement device is used which is moved over the color measurement fields in the row and gauges the color measurement fields in a multitude of individual measurements. The hand-held color measurement device is guided over the color measurement fields in the row in two measurement runs. In a first measurement run, first color measurement data of the color measurement fields is measured using a first type of illumination light, and the fields are identified on the basis of the first color measurement data. The first type of illumination light (typically, white) covers a sufficient portion of the spectrum to enable the fields to be identified by means of the first color measurement data. In a subsequent second measurement run, second color measurement data of the color measurement fields is measured using a second type of illumination light which does not cover a sufficient portion of the spectrum for identifying the fields (typically, UV). The second color measurement data is then assigned to the color measurement fields on the basis of the fields identified in the first measurement run.09-02-2010
20100182592APPARATUS AND METHOD FOR CHECKING THICKNESS DIMENSIONS OF AN ELEMENT WHILE IT IS BEING MACHINED - An apparatus for checking thickness dimensions in a semiconductor wafer (07-22-2010
20110249254METHODS AND APPARATUS TO OBTAIN SUSPENDED PARTICLE INFORMATION - Example methods and apparatus for obtaining suspended particle information are disclosed. A disclosed example method includes emitting light from a light source, dividing the light source into a first path and a second path, and directing the first path to a first container comprising a plurality of particles in a suspension material. The example method also includes directing the second path to a second container containing a suspension material devoid of particles, retrieving a first transmission value of the first path through the first container, and retrieving a second transmission value of the second path through the second container. The example method further includes directing the first and second paths to the second and first containers, respectively, retrieving a third transmission value of the first path through the second container, retrieving a fourth transmission value of the second path through the first container, and calculating a ratio of the first and second transmission values to the third and fourth transmission values to determine an indication of transmissivity for a given wavelength.10-13-2011
20110249253TOTAL REFLECTION TERAHERTZ WAVE MEASUREMENT DEVICE - A total reflection terahertz wave measuring apparatus 10-13-2011
20090027655System and method for measurement of degree of moisture stratification in a paper or board - A measurement system for measuring a degree of moisture stratification in a flat sheet product, such as paper, board or other materials. The system uses a combination of a reflection gauge and a transmission gauge to provide output signals indicative of surface moisture of a first side and of moisture in the body of the flat sheet product. The output signals are processed by a controller or computer to provide a measurement of the moisture stratification. An additional reflection gauge and an additional transmission gauge can also be used to provide additional output signals indicative of surface moisture of a second side of the flat sheet product and of moisture in the body. Narrow band radiation is used with modulation to distinguish from ambient radiation as well as radiation incident on the opposite side.01-29-2009
20120120385PATHOGEN DETECTION BY SIMULTANEOUS SIZE/FLUORESCENCE MEASUREMENT - A method and apparatus for detecting pathogens and particles in a fluid in which particle size and intrinsic fluorescence of a simple particle is determined.05-17-2012
20120200844DEVICE FOR RADIATION ABSORPTION MEASUREMENTS AND METHOD FOR CALIBRATION THEREOF - A device for radiation absorption measurements may include a radiation source emitting electromagnetic radiation having a wavelength in the interval 0.2 μm-20 μm, a detector detecting the electromagnetic radiation, when in a measurement mode at least a portion of the radiation has passed through a medium and been reflected by a surface at a distance from the radiation source, before reaching the detector. The device may further include a fluid calibration cell, which is adapted to be arranged in the path of the electromagnetic radiation between the radiation source and the detector. A method for calibrating a device for radiation absorption measurements may involve emitting electromagnetic radiation having a wavelength in the interval 0.2 to 20 μm, directing at least a portion of the electromagnetic radiation through a fluid calibration cell, and detecting the electromagnetic radiation.08-09-2012
20110026013Method and Apparatus for the Contactless Measurement of an Offset of the Functional Components of a Travel Path of a Magnetic Levitation Railway Driven by a Linear Motor - Disclosed is a method for the contactless measurement of an offset of the functional components of a travel path of a magnetic levitation railway driven by a linear motor with the help of at least one optical triangulation system (02-03-2011
20110043788Fully Integrated Portable Screening System - A fully integrated portable screening system includes a main housing and a contact pad. The contact pad is removably positioned in the main housing and covered by at least one sample sheet. The contact pad is preferably constituted by a cylindrical baton which carries a roll of sample collection sheets. A test subject interacts with the contact pad, leaving a trace sample on the sample collection sheet. The contact pad is then placed within the main housing and the trace sample is exposed to a test medium designed to interact with a specific analyte of interest potentially present in the trace sample. After exposure to the test medium, the sample sheet is subjected to a testing mechanism which exposes any interaction between the test medium and the analyte of interest to produce a test result.02-24-2011
20100302529WAVELENGTH DEPENDENT REFLECTIVE SAMPLE SUBSTRATES FOR RAMAN AND FLUORESCENCE SPECTROSCOPY - A material which is generally transparent in the visible region of the spectrum but reflective at laser wavelengths reduces undesirable, substrate-induced Raman and fluorescence scattering. A substrate provides a surface for supporting the sample, with the material being disposed between the surface of the substrate and the sample. The material is substantially transparent in the visible region of the spectrum but reflective at the laser wavelength, thereby minimizing unwanted Raman or fluorescence scattering that would be produced by the substrate if the material were not present. The substrate will typically be a glass microscope slide or multi-cell well plate. The optical filter material is preferably a multilayer dielectric filter acting as a “hot mirror” that reflects near-infrared energy. An advantage of visible transmission is that it allows back illumination from behind/underneath the slide or well plate, thereby being visible to a microscope's eyepiece or video camera. Methods and article are also disclosed.12-02-2010
20100277717METHOD AND SYSTEM FOR PROVIDING A HIGH DEFINITION TRIANGULATION SYSTEM - A triangulation system including a laser beam, optics focusing the laser beam on an object, a light detection unit detecting light reflected from the object due to impingement of the beam on the object, and an arrangement for determining, based on the detected light, object feature dimensions. The wavelength of the laser beam may be shorter than of infrared radiation, which allows for a reduced spot size without significant loss of depth of field. So as to reduce aberrations or a sensitivity to aberrations due to the shortened wavelength, the system may include (i) a polarization dependent coating matching the index of refraction of an element of the light detection unit to that of air for a range of angles, (ii) tilted projection optics, (iii) a prism wavefront corrector, and/or (iv) a positioning assembly, which provides for increased precision in positioning the laser diode with respect to a collimator lens.11-04-2010
20110249255SENSOR SYSTEM FOR DETECTING AND SPECIFYING INDIVIDUAL PARTICLES IN A FLUID - A sensor system for capturing and specifying individual particles (10-13-2011
20100265492HIGH PRESSURE AND HIGH TEMPERATURE OPTICAL SPECTROSCOPY CELL - Devices, methods and systems for making optical measurements of a fluid at elevated pressures and temperatures are disclosed. A cell is designed for the optical spectroscopic measurements of fluids or gas using light from ultra violet (UV) to far infrared wavelengths, among other wavelengths. A cell is described that is well suited for applications using very small fluid volumes, on the order of micro liters, such as microfluidic systems. Some described embodiments are suited for very high pressure and temperature environments (for example, 20 kpsi or greater at 175 degree C. or greater). Such conditions, for example, may be found in oilfield downhole environments. Some embodiments provide are inexpensive, and make use of replaceable lenses that are used as a pressure barrier and for collimation of the optical beam path for spectroscopic measurements.10-21-2010
20120200843LENS SYSTEM - A fragmented lens system for creating an invisible light pattern useful to computer vision systems is disclosed. Random or semi-random dot patterns generated by the present system allow a computer to uniquely identify each patch of a pattern projected by a corresponding illuminator or light source. The computer may determine the position and distance of an object by identifying the illumination pattern on the object.08-09-2012
20080246950Device, Method, and Program for Estimating Light Source - A light source estimating device includes a light receiving section for receiving visible light and invisible light radiated from a light source, and a light source estimating section for estimating a type of the light source on the basis of an intensity of the received visible light and an intensity of the received invisible light.10-09-2008
20080246948Automatic Polarizer for Cctv Applications - The invention is related to a camera device (10-09-2008
20120033200SYSTEM AND METHOD FOR MEASURING THE THICKNESS OF A LAYER OF COATING - A system and a method for measuring the thickness of a layer of coating deposited on a substrate indirectly measures the thickness of the layer of coating on the substrate by measuring the thickness of layers of coating on a coating roller before and after the coating is transferred from the coating roller to the substrate. To measure the thickness of the layers of coating on the coating roller two sensors are used directed to respective layer on the coating roller. The sensors have IR radiators and IR detectors.02-09-2012
20100277718METHOD AND SYSTEM FOR PLASMA-INDUCED TERAHERTZ SPECTROSCOPY - A method of analyzing a remotely-located object includes the step of illuminating at least a portion of a targeted object with electromagnetic radiation to induce a phase transformation in the targeted object, wherein the phase transformation produces an emitter plasma, which emits terahertz radiation. The method also includes the step of ionizing a volume of an ambient gas to produce a sensor plasma by focusing an optical probe beam in the volume and the step of detecting an optical component of resultant radiation produced from an interaction of the focused optical probe beam and the terahertz radiation in the sensor plasma. Detecting an optical component of the resultant radiation emitted by the sensor plasma facilitates detection of a characteristic fingerprint of the targeted object imposed onto the terahertz radiation produced as a result of the induced phase transformation.11-04-2010
20110102770Refraction assisted illumination for imaging - Various embodiments are directed to systems and methods of imaging subsurface features of objects. An illumination source may be directed towards a surface of an object comprising subsurface features at a first angle relative to the normal of the surface. The object may have a portion between the subsurface features and the surface that has an index of refraction that is greater than the index of refraction of a surrounding medium. An imaging device may be placed with an objective lens oriented substantially normal to the surface. The first angle may be larger than an acceptance angle of the objective lens.05-05-2011
20100321672PROTEIN BASED SHEET MATERIAL FOR IN VITRO TESTING - The invention provides a sheet material that is of use as an equivalent to skin for in vitro testing of cosmetic ingredients and/or formulations. The sheet material comprises protein and a humidity control agent so that it is ready to use. Tests that can be performed on the sheet material are for example make up smearing, colour evaluation, sun protection factor measurements, UVA-protection, water resistance of cosmetic products, sunless tanning applications, etc.12-23-2010
20080252876System for Measuring the Image Quality of an Optical Imaging System - A measuring system (10-16-2008
20080204711Spectrometer with moveable detector element - An optical spectroscopy tool is provided. In one embodiment a highly efficient means by which moderate resolution spectroscopy may be performed in the vacuum ultraviolet (VUV) is described. In one embodiment the techniques can be used as a high throughput spectrometer to spatially disperse wavelengths in and around the VUV in such a manner as to generate a substantially flat field focal plane, suitable for use in combination with an array detector. Some embodiments utilize prism based spectrometers. Some embodiments utilize detector elements that may be movable and/or located within the spectrometer. In some embodiments, collimated light may be provided as an input to the spectrometer.08-28-2008
20110051125Apparatus and Method for Analyzing Urine Components in Toilet in Real-Time by Using Miniature ATR Infrared Spectroscopy - The present invention relates to a miniature apparatus for analyzing urine components and a method for real-time analyzing urine components using the same which can measure and analyze components contained in the urine in real-time.03-03-2011
20110051124DIE BONDING PROCESS INCORPORATING INFRARED VISION SYSTEM - A method of aligning a die when the die is held with a circuit pattern on a first side of the die facing away from an infrared light source, wherein infrared light from the infrared light source is projected onto a second side of the die opposite to the first side such that the infrared light passes through a body of the die. From the second side of the die, an image of the infrared light reflected from the circuit pattern is detected and captured. Thereafter, an alignment of the die from the captured image of the die is determined.03-03-2011
20100283992METHOD OF OPTICAL TELEDETECTION OF COMPOUNDS IN A MEDIUM - The invention relates to a method of optical teledetection of compounds in a medium in which: 11-11-2010
20110075127ELECTROMAGNETIC WAVE MEASURING APPARATUS - A desired spatial resolution upon a measurement can be attained by making an electromagnetic wave including a terahertz wave (frequency thereof is equal to or more than 0.01 [THz], and equal to or less than 100 [THz]) incident to a device under test. An electromagnetic wave measurement device includes an incident lens which makes an electromagnetic wave to be measured having a frequency equal to or more than 0.01 [THz] and equal to or less than 100 [THz] incident to a device under a test while decreasing a beam diameter of the electromagnetic wave to be measured, a scanning stage which rotates, about a line orthogonal to an optical axis of the incident lens as a rotational axis, the device under the test or the optical axis, and an electromagnetic wave detector which detects the electromagnetic wave to be measured which has transmitted through the device under the test, where a coordinate on the optical axis of a position which gives the minimum value d of the beam diameter is different from a coordinate on the optical axis of the rotational axis.03-31-2011
20110134413COOKING HOB DEVICE - A hob device is provided that has a monitoring unit to monitor a cooking area of a hob. The monitoring unit includes a sensor array of multiple infrared sensors to record infrared light.06-09-2011
20110255073POLYMERIZED FILMS WITH LINE TEXTURE OR FINGERPRINT TEXTURE - The present invention relates to a process for producing polymerized films with line texture or fingerprint texture or for producing substrates coated with polymerized films with line texture or fingerprint texture, to polymerized films, obtainable by this process, with line texture or fingerprint texture or substrates coated with polymerized films with line texture or fingerprint texture, to pigments obtainable by comminuting such films, to the use of such films, substrates or pigments as or in optical filter(s), polarizers, decorative media, forgeryproof markers, reflective media or for focusing light (in solar cells), to the use of such films as an antibacterial coating, to a forgeryproof marker which comprises such a film, and to a process for detecting forgeryproof markings.10-20-2011
20100253935APPARATUS AND METHODS RELATING TO ENHANCED SPECTRAL MEASUREMENT SYSTEMS - The apparatus and methods herein provide light sources and spectral measurement systems that can improve the quality of images and the ability of users to distinguish desired features when making spectroscopy measurements by providing methods and apparatus that can improve the dynamic range of data from spectral measurement systems.10-07-2010
20110255074Apparatus and Method for Inspecting Defects - A defect inspection apparatus and method includes utilizing an irradiation optical system that focuses a beam flux emitted from a laser light source and formed into a slit-shaped beam so as to irradiate the beam onto the surface of the substrate to be inspected, utilizing a detection optical system that detects light from the substrate that has been irradiated with the slit-shaped beam, and utilizing a signal processor that processes a signal output from the detection optical system. The irradiation optical system includes a cylindrical lens for focusing the beam that has been emitted from the laser light source onto the substrate to be inspected, as the slit-shaped beam, wherein the cylindrical lens is disposed so as to obtain a distance between an incidence surface or emitting surface thereof and the slit-shaped beam upon the substrate to be inspected to be equal to a focal distance of the cylindrical lens.10-20-2011
20090201491Spectroscopic Determination of Sucrose - A method for determining sugar concentration using spectropolarimetry and multivariate regression modeling A set of fixed polarizers are used in association with a spectrometer, which enables the measurement of optical rotation as absorbance values over a range of wavelengths. The adverse effects of color within the samples is corrected by measuring a background level of absorbance that is not due to optical rotation and using this as a baseline. A regression model is then developed for predicting sugar concentration in unknown samples. This method is effective even if the sample is colored.08-13-2009
20110096322OPTICAL POSITION DETECTION DEVICE AND DISPLAY DEVICE WITH POSITION DETECTION FUNCTION - A position detector detecting an object's position includes: first, second and third light sources emitting first, second and third position detection light beams to form first, second and third intensity distributions in a detection area, a highest intensity portion of the second intensity distribution being shifted from that of the first intensity distribution, a highest intensity portion of the third intensity distribution being shifted from a straight line connecting the highest intensity portions of the first and second intensity distributions; a light detector detecting the first, second and third position detection light beams reflected by the object; and a position detection section detecting a two-dimensional coordinate of the object in a detection plane set in the detection area by comparing the intensities of the first and second position detection light beams, and comparing the intensities of the second and third position detection light beams.04-28-2011
20110080575PROJECTION TYPE DISPLAY SYSTEM HAVING POSITION DETECTION FUNCTION - A projection type display system having a position detection function which projects an image from an image projection device and optically detects a position of a target object between a surface on which the image is projected and the image projection device, includes: a position detection light source unit disposed on the image projection device to emit position detection light toward the target object; alight detector which detects the position detection light reflected by the target object in a detection area; and a position detection unit which detects the position of the target object based on a light reception result obtained by the light detector, wherein an intensity distribution of the position detection light is produced in an area to which the position detection light is supplied.04-07-2011
20080218732Infrared Scanner for Biological Applications - Methods and systems for generating near-infrared (NIR) images of biological targets are discussed. In one aspect, one or more radiation sources illuminate a target, with one or more detectors receiving the transmitted radiation. Such equipment can be used to generate a plurality of NIR images of a target. The images can be converted into frequency space, combined using chosen weighting factors, and deconvoluted into the spatial domain to provide a composite image. The composite image can have enhanced quality relative to the individual images, allowing for a richer set of information to be displayed. Other aspects such as scanning, background illumination correction, the use of filters, and additional techniques are also discussed.09-11-2008
20100165326Method and apparatus for detecting microscope slide coverslips - A method and apparatus of the present invention determines whether zero, one, or a plurality of microscope slide coverslips are about to be applied to a microscope slide. Light, such as ultraviolet light, may be directed toward a coverslip testing region, in which a number of coverslips reside. The amount of light passing through the coverslip testing region is collected and measured. Based on the measured amount, the method and apparatus determine the number of coverslips present in the coverslip testing region.07-01-2010
20100195092NONCONTACT FILM THICKNESS MEASUREMENT METHOD AND DEVICE - Noncontact film thickness measurement device includes an ultra short light pulse light source generating a repetitive ultra short light pulse laser, of which wavelength is in an area from visible region to near-infrared region, a light dividing device for dividing the ultra short light pulse laser into a pump light and a probe light, a light retarding device for controlling to retard the time of either one of the pump light and the probe light, a terahertz wave pulse generating device for generating a terahertz wave pulse by inputting the pump light and generating the terahertz wave pulse in a coaxial direction relative to a remaining pump light outputted without being used for generation of the terahertz wave pulse in the pump light, a light incident optical system for inputting the terahertz wave pulse to an object of which film thickness is to be measured, a light receiving optical system for receiving a terahertz echo pulse reflected from the object by inputting the terahertz wave pulse and a detecting device for detecting an electric field amplitude time resolved wave form of a terahertz echo pulse with the probe light.08-05-2010
20110261347Method for interferometric detection of surfaces - The invention relates to a method for imaging a microfabricated device comprising at least one oscillating component. The method comprises stroboscopically illuminating in an interferometric setup said component in synchronized relationship with the excitation of the device, and detecting interference light in synchronized relationship with the illumination and excitation. According to the invention the component is illuminated at a wavelength band which is at least partly transmissible by the component, and the positions of at least two separate surfaces of the component of interest are determined based on the interference light detected at least at two temporal phases of excitation of the device. The invention provides an efficient method for in-depth characterization of micromechanical structures that provide only one-sided access during operation.10-27-2011
20110261346ULTRAVIOLET RAY DETECTION APPARATUS USING NANOCRYSTAL QUANTUM DOTS - An ultraviolet rays detection apparatus according to the present invention includes a color converting unit including nanocrystal quantum dots and having a color that is changed by irradiation of ultraviolet rays, and a non-color-converting unit disposed closer to the color converting unit and having a color that is not changed by the irradiation of the ultraviolet rays, thereby easily detecting the ultraviolet rays.10-27-2011
20110181868INSPECTION SYSTEMS AND METHODS FOR DETECTING DEFECTS ON EXTREME ULTRAVIOLET MASK BLANKS - Provided are novel inspection methods and systems for inspecting unpatterned objects, such as extreme ultraviolet (EUV) mask blanks, for surface defects, including extremely small defects. Defects may include various phase objects, such as bumps and pits that are only about 1 nanometer in height, and small particles. Inspection is performed at wavelengths less than about 250 nanometers, such as a reconfigured deep UV inspection system. A partial coherence sigma is set to between about 0.15 and 0.5. Phase defects can be found by using one or more defocused inspection passes, for example at one positive depth of focus (DOF) and one negative DOF. In certain embodiments, DOF is between about −1 to −3 and/or +1 to +3. The results of multiple inspection passes can be combined to differentiate defect types. Inspection methods may involve applying matched filters, thresholds, and/or correction factors in order to improve a signal to noise ratio.07-28-2011
20100026987PHOTOLUMINESCENT HEAT-SHRINKABLE FILMS - A primary object of the present invention is to provide a multilayer heat-shrinkable styrene-based film that makes it possible, even when the film is transparent, to confirm that the film is correctly applied on a drink bottle and the like as a label. The present invention provides a heat-shrinkable styrene-based film having at least one layer containing a styrene-based resin containing a copolymer b1 of 98 to 40% by weight vinyl aromatic hydrocarbon and 2 to 60% by weight aliphatic unsaturated carboxylic acid ester, and/or a block copolymer b2 of 70 to 85% by weight vinyl aromatic hydrocarbon and 15 to 30% by weight conjugated diene hydrocarbon, and a fluorescent brightening agent in an amount of 100 to 2,000 weight ppm with respect to the total weight of the styrene-based resin. The present invention also provides a heat-shrinkable film having a three-layer structure containing front and back layers and a core layer, wherein the above-mentioned copolymer b1 and/or copolymer b2 forms the core layer.02-04-2010
20080212074Hand-Held, Self-Contained Optical Emission Spectroscopy (OES) Analyzer - A hand-held, self-contained, battery-powered test instrument for analyzing composition of a sample includes an exciter for exciting at least a portion of the sample, a compact cross-dispersed spectrometer for receiving an optical signal from the excited portion of the sample and a processor for processing spectral data about the optical signal from the spectrometer. The exciter may include a spark generator and a counter electrode, a laser or other device for generating the optical signal from the sample portion. The spectrometer has a wavelength range broad enough to enable the test instrument to detect and determine relative quantities of carbon, phosphorous, sulfur, manganese, silicon, iron and other elements necessary to identify common alloys. The spectrometer includes a structural member made of a light-weight material having a small coefficient of thermal expansion (CTE). The spectrometer is dimensionally stable over a range of expected ambient temperatures, without controlling the temperature of the spectrometer.09-04-2008
20110037971SMOKE DETECTION BY WAY OF TWO SPECTRALLY DIFFERENT SCATTERED LIGHT MEASUREMENTS - A device for detecting smoke based on the principle of optical scattered light measurements has a light emitting device, configured to issue a temporal succession of light pulses. A first light pulse has a first spectral distribution and a second light pulse has a second spectral distribution that is different from the first spectral distribution. A light receiver receives a first scattered light from the first light pulse and a second scattered light from the second light pulse, and generates a first output signal that is indicative for the first scattered light, and a second output signals that is indicative for the second scattered light. An evaluation unit compares the first output signal with the second output signal. In a preferred embodiment of the device, the light emitter and the light receiver are arranged directly next to one another.02-17-2011
20110116078INFRARED IMAGE SENSOR - An image sensor comprises a photoelectric conversion element receiving light to accumulate photocharges, and a wavelength conversion layer formed above the photoelectric conversion element to convert light within a first wavelength band into light within a second wavelength band shorter than the first wavelength band and supply the converted light to the photoelectric conversion element.05-19-2011
20110116076WELDING ARC APPAREL WITH UV ACTIVATED IMAGES - A welding accessory and a system for detecting UV radiation exposure during welding operations are disclosed. The welding accessory may have a surface exposed to UV radiation generated by electric arc welding, a first image visible without exposure to the UV radiation, and a second image formed from UV activated dye that is visible only after exposure to UV radiation generated by the electric welding arc. A system may include a UV exposure indicator with a first state and at least a second state, and include UV activated dye adapted to provide a reversible or persistent visual indication upon exposure to UV radiation. The visual indication may include any combination of symbols, logos, images, text, or other decorative or informational designs as desired.05-19-2011
20120307234Pathogen Detection by Simultaneous Size/Fluorescence Measurement - A method and apparatus for detecting pathogens and particles in a fluid in which particle size and intrinsic fluorescence of a simple particle is determined.12-06-2012
20100134784Detector Arrangement for a Nondispersive Infrared Gas Analyzer and Method for the Detection of a Measuring Gas Component in a Gas Mixture by Means of Such a Gas Analyzer - A detector arrangement for detection of a measuring gas component in a gas mixture is provided. The arrangement includes a gas analyzer, a first single-layer receiver and a further single-layer receiver, the first single-layer receiver containing the measuring gas component and the further single-layer receiver containing a transverse gas. A concentration of the measuring gas component in the gas mixture is determined from signals delivered by sensors of the single-layer receivers. An evaluating device includes an n-dimensional calibration matrix for obtaining matrix signal values. Signal values of different known concentrations of the measuring gas component in the presence of different known transverse gas concentrations are stored as n-tubules in the evaluating device. The concentration of the measuring gas component in the presence of unknown transverse gas concentrations is determined by comparing n-tuples of signal values thereby obtained with the n-tuples of signal values stored in the calibration matrix.06-03-2010
20110304844GAS SENSOR AND PROCESS FOR MEASURING MOISTURE AND CARBON DIOXIDE CONCENTRATION - An TDLS gas sensor with a measuring pick-up to be arranged outside of the interior chamber of an incubator or a climate chamber of similar design, and with an absorption pick-up to be arranged inside the interior chamber, and also with a window separating the measuring area and absorption area for the atmospheric separation of the laser diode from the interior chamber of the incubator, with the window being arranged at an angle to the axis of the laser beam emitted by a laser diode, and with the optronic components being arranged in a block of material in the measuring pick-up, said block being made of thermally well-conducting material and serving as heat sink, and with a heating system for the window in the measuring pick-up. The TDLS gas sensor is easy to install and remove and permits the measurement of moisture and of the carbon dioxide concentration in one measuring cycle. However, it does not need to be removed for the sterilization. By installing an additional laser diode for measuring oxygen, the TDLS gas sensor can be used to perform a wide bandwidth of measurements. In addition, the invention concerns a process for measuring the moisture and the carbon dioxide concentration.12-15-2011
20100208239CHLORINE DIOXIDE SENSOR - A chemical sensor is disclosed. The sensor has a test chamber for receiving chemicals in a gaseous state, the test chamber having two substantially transparent windows at first and second ends of the test chamber. The sensor uses a pulse operated ultraviolet light emitting diode at the first end of the test chamber emitting at a wavelength close to a maximum in the absorption band of a test chemical, and an electromagnetic sensor at a second end of the test chamber, the sensor being sensitive to the light emitted by the light emitting diode.08-19-2010
20120044479TERAHERTZ SPECTROSCOPY SYSTEM AND METHOD - A terahertz spectrometer includes: a terahertz-wave emitter and a terahertz receiver elements. The terahertz wave generated by means of generating beat frequency corresponding to the difference between two rapidly tunable continuous wave lasers. Having a difference in time between the interrogating signal and the reference signal at the receiver end side, which corresponds to intermediate frequency (IF), not centered around the baseband, i.e. zero Hertz. The offset step size of the intermediate frequency from zero Hertz is linearly correlated to the position of the interrogated object position.02-23-2012
20120099098Cuvette and Optical Method - A unit is provided comprising an array (04-26-2012
20110063603APPARATUS AND METHOD FOR INSPECTING DEFECTS - A defect inspection apparatus includes a movable stage for mounting a substrate having circuit patterns as an object of inspection, an irradiation optical system which irradiates a slit-shaped light beam from an oblique direction to the circuit patterns of the substrate, a detection optical system which includes an image sensor for receiving reflected/scattered light from the substrate by irradiation of the slit-shaped light beam and converting the received light into a signal, and an image processor which processes the signal. The irradiation optical system includes a cylindrical lens and a coherency reduction optical system, which receives the light beam and emits a plurality of slit-shaped light sub-beams which are spatially reduced in coherency in a light-converging direction of the cylindrical lens. The cylindrical lens focuses the plurality of slit-shaped light sub-beams into the slit-shaped light beam irradiated to the surface of the substrate.03-17-2011
20090219513Spa Chlorine Measurement Via Temperature Shift UV Spectrometry - A method of measuring chlorine concentration of a solution comprising making a first measurement of transmission of ultraviolet light at a selected wavelength through a first sample of said solution at a first temperature; making a second measurement of the transmission of ultraviolet light at said selected wavelength through a second sample of said solution at a second temperature, said second temperature being different than said first temperature; and determining the chlorine concentration in said solution using the results of said first and second measurements.09-03-2009
20120044478Standoff Explosives Detector Using Deep-UV Raman Spectroscopy - A method of performing Raman spectroscopy, and an apparatus for performing the method, including irradiating, with laser light, a trace amount of a target substance disposed on a painted surface, receiving reflected laser light and a Raman return signal from the trace amount of the target substance, processing the Raman return signal using, at least, a spectrograph and camera to obtain a Raman signature for the target substance, and identifying the target substance based on the Raman signature for the target substance and a database of Raman signatures. The laser light wavelength may be selected based on a ratio of Raman return signal power to fluorescence power.02-23-2012
20120002191STANDOFF SPECTROSCOPY USING A CONDITIONED TARGET - A system and method are disclosed for standoff spectroscopy of molecules (e.g. from a residue) on a surface from a distance. A source emits radiation that modifies or conditions the residue, such as through photodecomposition. A spectral generating source measures a spectrum of the residue before and after the residue is exposed to the radiation from that source. The two spectra are compared to produce a distinct identification of the residues on the surface or identify certain properties of the residue.01-05-2012
20120057149Optical Characteristic Measuring Probe - Provided is an optical characteristic measuring probe which can detect the position and the direction of the leading end of the probe without affecting a monitoring image. The bendable optical characteristic measuring probe is provided with a light guide body (03-08-2012
20120013890PATTERN INSPECTION DEVICE OF SUBSTRATE SURFACE AND PATTERN INSPECTION METHOD OF THE SAME - There is provided a pattern inspection device for a substrate surface which can inspect a substrate including a pattern whose size is equal to or smaller than light resolution limit at high speed. The pattern inspection device for the substrate surface includes: a near-field optical head 01-19-2012
20120013889Method and Device for Determining the Position of a Boundary Between Two Phased in a Sample Tube - A method and device are provided for determining at least one vertical position of at least one horizontally extending interface between a first component and at least one second component present in a sample tube in layers separated from one another. To this end, the device exposes the sample tube in multiplex time to light impulses having a first and a second wavelength, measures intensities of light impulses of the first and second wavelength exiting the sample tube, and analyzes the measured intensities for determining the position of the interfaces.01-19-2012
20120057148DEVICE AND METHOD FOR INSPECTING POLYCRYSTALLINE SILICON LAYER - A device for inspecting a polycrystalline silicon layer that is crystallized by receiving irradiated laser beams on a front side of the polycrystalline silicon layer includes: a light source configured to emit inspection beams to a rear side of the polycrystalline silicon layer; a light inspector configured to inspect the inspection beams reflected at the rear side of the polycrystalline silicon layer; and a controller that controls the light source and the light inspector.03-08-2012
20120057147APPARATUS FOR DETERMINING THICKNESS OF A BANKNOTE - An apparatus (03-08-2012
20120057146SURFACE PLASMON RESONANCE SENSOR USING BEAM PROFILE ELLIPSOMETRY - Provided is a multi-channel surface plasmon resonance sensor using beam profile ellipsometry; and, more particularly, to a high sensitive measuring technology, which is coupled with a vertical illumination type focused-beam ellipsometer using a multi-incident angle measurement method, and a surface plasmon resonance (SPR) sensing part deposited with a metal thin film. The multi-channel surface plasmon resonance sensor includes a vertical illumination type focused-beam ellipsometer, in which light is polarized; a surface plasmon resonance (SPR) sensing part which is provided at the objective lens part of the focused-beam ellipsometer so as to generate SPR according to an angle change of the polarized light; and a flow unit which supplies a buffer solution containing a bio material binding to or dissociation from the metal thin film generating surface plasmon, wherein the SPR and the ellipsometric phase change by change in an angle and a wavelength are simultaneously detected.03-08-2012
20120057145SYSTEMS AND METHODS FOR DIAGNOSIS OF EPITHELIAL LESIONS - Systems comprising an optical fiber switch connected to a light source and an optical fiber probe, the optical fiber probe comprising a first optical fiber connected to the optical fiber switch and a second optical fiber connected to a spectrophotometer. Methods for determining one or more tissue parameters comprising: emitting light from a first optical fiber into a tissue; collecting the light reemitted from the tissue with a second optical fiber; generating a spectra of the light reemitted from the tissue with a spectrophotometer; and utilizing a look-up table based algorithm to determine one or more tissue parameters, wherein the lookup-table based algorithm comprises the steps of: generating a look-up table by measuring the functional form of a reflectance measured by the spectrophotometer using one or more calibration standards with known optical properties; and implementing an iterative fitting routine based on the lookup-table.03-08-2012
20120154791SURFACE ENHANCED RAMAN SPECTROSCOPY SYSTEM - A surface enhanced Raman spectroscopy system includes a surface enhanced Raman spectroscopy substrate and a laser source configured to emit light within a spectrum of wavelengths toward a predetermined species on or near the surface enhanced Raman spectroscopy substrate. The system further includes a set of filters positioned to be in optical communication with light scattered after the laser light interacts with the predetermined species. Each of the filters in the set is respectively configured to pass scattered light within a different predetermined narrow band of wavelengths. The system also includes a plurality of photodetectors, where each photodetector is positioned adjacent to a respective one of the filters in the set and is configured to output a signal if the scattered light passes through the respective one of the filters. The set of filters is targeted for detection of characteristic peaks of the predetermined species.06-21-2012
20120206715METHANE MONITORING SYSTEM - A methane monitoring system including a filter, a flow restrictor and a methane level detector is disclosed. The sensor system draws gas from a piping system through a sample line into the filter. The filter removes moisture vapor from the gas, with the remaining gas passing into a flow meter. The flow meter regulates the gas pressure for the gas output to a sensing chamber containing the methane meter. The methane meter operates to sample the methane level in the gas and provides an electrical signal which can be output to a recording device such as a flash memory card or to real time remote reporting via direct connection or a wireless signal such as a cell phone, radio or satellite telecom system. Landfill gas which is introduced into the sensing chamber is then exhausted through vent slots in the housing.08-16-2012
20120206714Shutter Assembly with Calibration Material - A shutter assembly for use with a spectrometer having at least one source of optical radiation such as at least one laser capable of generating an excitation light beam having an illumination path. The shutter assembly includes a shutter having at least one of (i) at least one calibration material capable of generating a consistent spectrum within wavelengths utilizable by the spectrometer and (ii) a mirror capable of diverting at least one of the illumination path and a collection path relative to a calibration standard capable of generating a consistent spectrum within wavelengths utilizable by the spectrometer. The shutter assembly further includes a mechanism capable of moving the shutter into at least a first position in the path of the light beam and a second position out of the path of the light beam to enable a sample to be analyzed.08-16-2012
20120062871METHOD AND SYSTEM FOR THE MEASUREMENT/DETECTION OF CHEMICAL SPILLAGE - The invention relates to measurement of chemical spillage, such as oil spillage, by the use of one or more IR-lasers, necessary optics and optical sensors. The measurements are performed by reflecting the emitted light from the laser(s) back from the chemical and registered by optical sensors. To accurately detecting the chemical the system utilizes at least three different wavelengths which are emitted from one or more lasers. The wavelengths are chosen so that the reflection from the chemical is different for at least three of these, and that it can be distinguished from the background.03-15-2012
20120062870PHYSICAL STATE MEASURING APPARATUS AND PHYSICAL STATE MEASURING METHOD - The physical state measuring apparatus includes: a light source; a transmitting unit which transmits a light from the light source to a measurement point of an object to be measured; a nonlinear optical device which changes a wavelength of the light reflected by the measurement point to a wavelength that is different from the wavelength before the changing; a light receiving unit which receives the light whose wavelength has been changed; and a measuring unit which measures a physical state of the object to be measured at the measurement point based on a waveform of the light received by the light receiving unit.03-15-2012
20120154793Tunable compliant optical metamaterial structures - A tunable metamaterial structure, comprises a flexible substrate capable of being strained, a metamaterial pattern on a surface of the flexible substrate, and a metal layer on the metamaterial pattern. The flexible substrate of the tunable metamaterial structure is a strained and relaxed substrate which has been strained to a degree sufficient to register a resonant response upon relaxation that is shifted relative to the resonant response of the flexible substrate prior to being strained. The application of strain to the flexible substrate of the metamaterial structure enables tuning of the resonant frequency.06-21-2012
20120154792Portable system for detecting hazardous agents using SWIR and method for use thereof - The disclosure provides for a portable device for detecting hazardous agents, including explosives using SWIR hyperspectral imaging. The device may comprise a collection optics, a SWIR multi-conjugate filter, a SWIR camera, and a display. The device may also comprise an RGB camera. The disclosure also provides for a method of using said portable device wherein interacted photons are collected and passed through a SWIR multi-conjugate filter. The interacted photons are detected to generate at least one SWIR hyperspectral image. The SWIR hyperspectral image may be analyzed to determine the presence or absence of a hazardous agent on a target. An RGB image of a target may also be generated and analyzed to survey a sample scene.06-21-2012
20120154790APPARATUS, SYSTEM, AND METHOD FOR DETECTING CHEMICALS - An apparatus, system, and method for detecting chemicals utilizes a mechanism for dividing light from a target volume into different frequency bands and directing these bands onto a pixel array. The entire pixel array is then read out at essentially the same time. Dividing and applying the ranges of frequencies to the pixels in this way facilitates decoupling spectral information from the data signals and determining a spectral range signature without aliasing. Analysis of the spectral range signature and other spectral information including comparison to a database enables identification of chemical(s) in a target volume. The system and apparatus may include a chemical detector having a light collector, a diffraction grating, a focal plane array of pixels, and a controller. A light generator and a high frequency microphone for receiving a photoacoustic response may be utilized to determine a location of a material in the target volume.06-21-2012
20120075617LASER NAVIGATION MODULE - Disclosed herein is a laser navigation module. A light source emits a laser beam. A housing includes an IR window and a transparent or semitransparent part. The IR window transmits or reflects the laser beam emitted from the light source, and also interrupts transmission of external visible rays. The transparent or semitransparent part allows light emitted in the housing to be transmitted out of the housing. An illuminator is installed in the housing. A light diffusion unit transmits the light emitted from the illuminator to the housing. A re-reflective layer is formed on the upper surface of the light diffusion unit.03-29-2012
20110090484Optical Sensor Unit for Evanescence Wave Spectroscopy - Optical sensor unit for infra red evanescence wave spectroscopy (IR-EWS) analysis of chemical and biological substances in an analyte, comprising a waveguide with a sensor surface to be put into contact with the analyte, wherein the sensor surface is provided with an affinity enhancing layer. There is further provided a method of producing an optical sensor unit.04-21-2011
20110090483Apparatus for the optical inspection of wafers - A metrology tool (04-21-2011
20100020310METHOD FOR THE CAMERA-ASSISTED DETECTION OF THE RADIATION INTENSITY OF A GASEOUS CHEMICAL REACTION PRODUCT AND USES OF SAID METHOD AND CORRESPONDING DEVICE - According to the invention, an RGB-color camera is used to detect the radiation intensity of a reaction product in red, green or blue wavelength range such that the respective blue signal (IB) of the RGB-color camera is used to produce a band radiation value (BS) of the respective reaction product and the respective red and/or green signal (IR, IG) of the RGB-color camera is used to produce the thermal radiation value (TS) by means of pyrometry or comparative pyrometry, whereby the difference of the respective range radiation value (BS) and the respective associated thermal radiation value (TS) is used to produce an emission rate (K) for the radiation intensity of the respective reaction product.01-28-2010
20110102771SYSTEMS AND METHODS FOR NEAR INFRA-RED OPTICAL INSPECTION - An inspection system and a method for defect detection, the method includes: generating a first beam that comprises a near infrared spectral component and a visible light component; directing at least the near infrared spectral component of the first beam towards an inspected object; directing, towards a sensor, a near infrared spectral component of a second beam generated from the illuminating of the inspected object; wherein the sensor is sensitive to visual light radiation and to near infrared radiation; generating, by the sensor, detection signals that are responsive to the near infrared component of the second beam; and detecting defects in the inspected object by processing the detection signals.05-05-2011
20120120386WATER COLOR SENSING HARDWARE AND METHODOLOGY FOR APPLIANCES - Apparatus and methodologies are provided to selectively activate a liquid usage option in a washing apparatus based on the color of the liquid. Light from different light sources is passed through a liquid to be tested and the intensity of the light passing through the liquid is measured. The measurement is adjust based on a measurement of the turbidity of the liquid and the measurement compared to a reference value derived from measurements of a clear liquid. A decision is made based on the adjust measured color of the liquid regarding retention of the liquid for further use in the washing apparatus. The liquid tested may correspond to grey water from a previous wash cycle.05-17-2012
20120162637Detection in Spatial Multidimensional Chromatography - A three-dimensional chromatographic detection method providing the detection of components inside a three-dimensional separation body (06-28-2012
20120162636PROXIMITY DETECTOR INCLUDING ANTI-FALSING MECHANISM - A proximity detector transmits light to an object near the proximity detector, thus providing transmitted light. A photo-sensor in the proximity detector receives transmitted light reflected by the object. The proximity detector tests the transmitted light reflected by the object to determine if the reflected light exceeds a predetermined brightness threshold value to provide preliminary object detection. The proximity detector confirms object detection by further testing ambient light received by the photo-sensor to determine if there is a substantial decrease in the amount of ambient light detected by the photo-sensor as the distance between the object and the proximity detector decreases.06-28-2012
20100290033Method and System for Using Reflectometry Below Deep Ultra-Violet (DUV) Wavelengths for Measuring Properties of Diffracting or Scattering Structures on Substrate Work Pieces - A method and apparatus is disclosed for using below deep ultra-violet (DUV) wavelength reflectometry for measuring properties of diffracting and/or scattering structures on semiconductor work-pieces is disclosed. The system can use polarized light in any incidence configuration, but one technique disclosed herein advantageously uses un-polarized light in a normal incidence configuration. The system thus provides enhanced optical measurement capabilities using below deep ultra-violet (DUV) radiation, while maintaining a small optical module that is easily integrated into other process tools. A further refinement utilizes an r-θ stage to further reduce the footprint.11-18-2010
20100290032METHOD AND SYSTEM FOR MEASURING AND DETERMINING/IDENTIFYING DIFFERENT MATERIALS - Method and system for measuring/depicting and determining/identifying one or more objects of different types of plastics, different types of fabrics or clothing, different types of glass, different types of food/groceries, different types of cardboard/paper/wooden products and/or different types of metals or similar materials. The method includes considering the reflected, scattered and/or transmitted light from the laser through the material, and determining the type of material from this.11-18-2010
20120127456FLOW CELL OPTICAL DETECTION SYSTEM - The present invention discloses a flow cell optical detection system comprising a light source, a flow cell and a light detector, wherein the light detector is arranged in a separate detector unit that is arranged to be releasably attached to a detector interface, the detector interface being in optical communication with the light source and comprises optical connectors for optically connecting the flow cell and the detector unit in the light path from the light source, and wherein the flow cell is an interchangeable unit arranged to be held in position by the detector unit when attached to the detector interface.05-24-2012
20100208238FIBER OPTIC PROBE SCATTEROMETER FOR SPECTROSCOPY MEASUREMENTS - A device for making spectroscopy measurements with reduced or eliminated surface reflections is provided, the device including an elongated member including an outermost opaque thin walled enclosure; an optically transparent thin-walled enclosure adjacent an inner surface of said outermost thin walled enclosure; one or more optical fibers centrally and axially disposed and spaced apart a distance B with respect to the optically transparent thin-walled enclosure; wherein the elongated member is adapted to be coupled to a spectrometer and an illumination source to provide a light signal from the illumination source along said optically transparent thin-walled enclosure and collect a scattered light signal from the sample by said one or more optical fibers to provide to the spectrometer.08-19-2010
20100208240SYSTEM AND METHOD OF EVALUATING AN OBJECT USING ELECTROMAGNETIC ENERGY - A system for evaluating subject objects includes at least one physical source (08-19-2010
20100208237POLYMERIC SUBSTRATES FOR RAMAN SPECTROSCOPY - The present invention generally provides substrates for use in a variety of analytical and/or diagnostic applications as well as optical systems that employ them, in particular systems based on surface enhanced Raman spectroscopy (SERS). In one aspect, the invention provides polymeric substrates having conductive surfaces that exhibit micron-sized, and preferably submicron-sized, structures. In other aspects, methods for fabricating such substrates are disclosed, including a step of irradiating a mold surface with a plurality of short laser pulses to form micron-sized or submicron-sized structures and the mold surface and generating the polymeric substrate by replication from the mold surface.08-19-2010
20110181867Infrared Spectroscopy - An apparatus includes an optical source providing an optical beam; a splitter configured to split the optical beam into a sample beam and a reference beam; a sample path containing a sample material to be analyzed, the sample beam being directed through the sample path so as to interact with the sample material; a reference path containing a reference material, the reference beam being directed through the reference path so as to interact with the reference material; a disperser configured to receive the sample beam after it exits the sample path and to receive the reference beam after it exits the reference path, the disperser outputting a dispersed sample beam and a dispersed reference beam; and a photodetector disposed to receive the dispersed sample beam and the dispersed reference beam and outputting electrical signals comprised of data indicative of a spectra of the sample beam after it exits the sample path and a spectra of the reference beam after it exits the reference path. In one embodiment the apparatus further includes a data processor connected with a memory storing a software program configured to process the data to detect a presence of at least one type of molecular species that includes the sample material; and a transmitter configured to transmit the processed data to a receiver. In another embodiment the apparatus includes a transmitter configured to transmit the data to a remote receiver for processing.07-28-2011
20120212729THERMAL PHASE SEPARATION SIMULATOR - A thermal phase separation simulator and method for testing chemicals is disclosed. The simulator comprises a circular block heater carousel mounted for rotation on a stage. The carousel includes a circular array of test wells for receiving a plurality of test bottles, a plurality of heating elements and thermocouples disposed between the wells. Each well has an illumination port and a vertical slit to the outside to allow visual observation or imaging of a vertical swatch of the bottle. An illumination source aligns with the illumination port of each well in response to rotation of the carousel. The method includes adding a mixed phase fluid to a plurality of bottles, adding a chemical agent to each bottle, and simulating a thermal phase separation. Images of the fluid in each bottle are captured and analyzed to determine the performance of the one or more chemical agents.08-23-2012
20120133923INTERFEROMETER WITH A FIBER OPTIC HAVING A HIGH PMD IN COUPLED MODE, FIBER OPTIC GYROSCOPE (FOG), AND INERTIAL NAVIGATION SYSTEM INCLUDING SUCH A GYROSCOPE - Disclosed is a fiber optic interferometer including: a wideband optical source having a decoherence time τ05-31-2012
20090059205APPARATUS AND METHOD FOR OBTAINING INFORMATION RELATED TO TERAHERTZ WAVES - To provide an apparatus capable obtaining a temporal waveform of terahertz waves transmitted through or reflected by a sample in a set region. A delay unit is configured to change a timing at which the detection unit detects terahertz waves transmitted through or reflected by a sample, which is originated from terahertz waves generated by a generation unit. A waveform obtaining unit is configured to obtain a temporal waveform of the transmitted terahertz waves which are obtained by using the delay unit. The delay unit, of which more than one may be used, is controlled so that the detection unit detects the transmitted terahertz waves in an area related to the temporal waveform set on the basis of information related to the sample that is pre-stored in the storage unit. Then, a temporal waveform of the transmitted terahertz waves in the area is obtained.03-05-2009
20120170022Analyzing Tissue Morphology in Three Dimensions - Light is introduced into a tissue sample. The resulting light that passes through the tissue sample may be spectrally analyzed to determine its intensity at a number of frequencies. From these intensities, a chemical nature of the tissue sample may be determined. By performing this process one or more times, a three-dimensional representation of the morphology of the tissue sample can be developed, and this representation may be used to determine whether the tissue sample is healthy or abnormal.07-05-2012
20120170021Method and apparatus for providing multiple wavelength reflectance magnitude and phase for a sample - A method and apparatus for providing multiple wavelength reflectance magnitude and phase for a sample is disclosed. In one embodiment, at least one of magnitude and/or phase is determined for at least some vacuum ultra-violet (VUV) wavelengths. One embodiment of the method utilizes a broadband referencing reflectometer to obtain an interference signal between reference and sample arms, in addition to the reflected intensities from each arm separately. Combined with a calibration of absolute reflectance magnitude and phase using one or more known calibration standards, the intensity and interference data can be used to obtain reflectance and phase for an unknown sample. In some embodiments, one or more properties of the calibration samples can be determined during the calibration procedure, even when the calibration samples are not stable under operating conditions, or with respect to the manufacture of the calibration samples.07-05-2012
20120314203CHROMATOGRAPHY OF METAL COMPLEXES - A high performance liquid chromatography method to routinely and reproducibly detect and quantitate metal complexes is provided. The metal complexes used in the method of the invention can be different metal complexes, or they can be stereoisomers of the same metal complexes. The high performance liquid chromatography method of the present invention is suitable for the separation of diastereomers of the same metal complexes. Also provided is a chiral high performance liquid chromatography method to separate enantiomers of metal complexes. Superoxide dismutase mimetic compounds are also provided.12-13-2012
20120170026FIBER OPTIC PROBE SCATTEROMETERS FOR SPECTROSCOPY MEASUREMENTS - Fiber optic probe scatterometers for spectroscopy measurements are disclosed. An example device includes an optically transparent illumination tube, an opaque tube, an inner surface of the opaque tube being adjacent an outer surface of the illumination tube and the illumination tube being disposed within the opaque tube, and an optical fiber disposed within and spaced a first distance from the illumination tube, wherein the opaque tube is to be coupled to a spectrometer and an illumination source to provide a light signal along the illumination tube and to collect a scattered light signal via the optical fiber for the spectrometer.07-05-2012
20120170025ONLINE SENSOR FOR MONITORING CHEMICAL CONTAMINATIONS IN HYDRAULIC FLUIDS - An online sensor for monitoring chemical contamination in a phosphate ester-based hydraulic fluid includes a receiving unit for the hydraulic fluid having two viewing windows arranged on opposite sides, an IR emitter, and an IR detector having four detector fields for IR spectroscopy, with the IR emitter and the IR detector being arranged on the two viewing windows in a mutually opposed manner. The online sensor also includes an optical filter having four fields for IR transmission bands with different wave numbers being provided between one viewing window and the IR detector for qualitative and quantitative evaluation of the contaminations, wherein a first IR transmission band has a wave number of 3400 cm-1, a second IR transmission band has a wave number of 3500 cm-1, a third IR transmission band has a wave number of 3600 cm-1, and a fourth IR transmission band is provided as a reference field.07-05-2012
20110205528SAMPLE ANALYSIS METHOD - A sample analysis method is provided for analyzing a sample having a permeability to terahertz radiation and accurately measure the composition, physical properties, mass and dimensions of a very small sample or a minute amount of sample by irradiating the sample with terahertz radiation. In the method, a reflective member is provided adjoining a first principal surface of the sample, an entrance member is provided adjoining a second principal surface of the sample, terahertz radiation is delivered from outside of entrance member towards the sample, and the sample is analyzed using an interference wave generated from a first-surface reflected wave at the interface between the first principal surface of the sample and the reflective member and a second-surface reflected wave at the interface between the second principal surface of the sample and the entrance member.08-25-2011
20120176602APPARATUS AND METHOD FOR INSPECTING PATTERN - A method and apparatus for inspecting defects includes emitting an ultraviolet light from an ultraviolet light source, illuminating a specimen with the ultraviolet light in which a polarization condition of the ultraviolet light is controlled, controlling a polarization condition of light reflected from the specimen which is illuminated by the polarization condition controlled ultraviolet light, detecting the light reflected from the specimen, processing the detected light so as to detect defects, and outputting information about the defects. The ultraviolet light source is disposed in a clean environment supplied with clean gas and separated from outside.07-12-2012
20120176600Gas Sensing System Employing Raman Scattering - A gas detection system includes a light detector, a pump laser with spectral emission between UV and IR wavelengths and structured to generate a laser beam, a hollow waveguide structured to receive a sample gas, the hollow waveguide having a bandwidth sufficient to transmit the laser beam and Stokes Raman photons scattered by the sample gas, and an optical system. The optical system is structured to: (i) direct the laser beam into the hollow waveguide such that it propagates in the hollow waveguide in one or more low-order low-loss waveguide modes, and (ii) direct Raman signals generated within the hollow waveguide in response to the laser beam interacting with the sample gas toward the light detector, the Raman signal including the Stokes Raman photons.07-12-2012
20120257190OPTICAL POSITION DETECTION DEVICE - In an optical position detection device, when light source sections emit detection light, a light detecting section detects detection light reflected from a object to detect the coordinates of the object. When seen from the detection space, the light detecting section is located inward from a plurality of light source sections, and each of the plurality of light source sections includes first and second light emitting elements. Therefore, the position of the object can be detected on the basis of a comparison result of the received light intensity in the light detecting section when the first light emitting element is turned on and the received light intensity in the light detecting section when the second light emitting element is turned on in both the case where the object is located outside a region between the light source sections and the case where the object is located inside the region.10-11-2012
20120257189THREE WAY DESKTOP UV COUNTERFEIT DETECTOR - A counterfeit detection apparatus is formed as a desktop currency detector which has a slim configuration and a small footprint on the order of about 175 mm×100 mm. The desktop counterfeit detector provides white light that can shine from below a currency bill that is placed on its translucent cover and also provides and overhead UV lamp which is situated approximately 30 mm above the translucent light table. The detector also provides a compartment for a counterfeit detector pen which contains a special ink formulation that can apply a color changing test mark to a currency bill to test its reaction with the paper to determine its genuineness. Thus, the detector provides a three-test opportunity to check the genuineness of a currency bill by white light, UV light and a specially formulated ink suitable for checking the paper stock.10-11-2012
20100007872SURFACE INSPECTING METHOD AND DEVICE - A light source section outputs optical flux having two types of wavelength, which are a short wavelength and a long wavelength, while the intensity is made variable. The optical flux is made incident to a detected surface of a body to be detected at a predetermined incident angle simultaneously or alternatively. Based on a type of optical flux outputted from the light source section and an output from a first light intensity detecting section, at least the intensity of the optical flux having a long wavelength outputted from the light source section is adjusted. The output from the first light intensity detecting section in irradiating the optical flux having a short wavelength is compared with the output from the first light intensity detecting section in irradiating the optical flux having a long wavelength. A signal that appears only in the output from the first light intensity detecting section in irradiating the optical flux having a long wavelength is identified as a detected signal from an internal subject. The intensity of optical flux having a long wavelength is adjusted. A disappearance level near a point where the detected signal from the internal subject disappears is calculated. The first intensity of optical flux having a long wavelength is set to level higher than the disappearance level. Based on the output from the first light intensity detecting section obtained by the optical flux having a long wavelength of the first intensity, a subject inside the body to be detected is measured.01-14-2010
20100283994Measurement of Nitrate-Nitrogen Concentration in Soil based on Absorption Spectroscopy - The nitrate-nitrogen concentration in soil is estimated based on the nitrate-nitrogen 200 nm absorption peak. In one embodiment, a device measures the attenuation spectrum of a soil-extractant mixture over a wavelength range that includes wavelengths in the vicinity of the 200 nm absorption peak (the spectral operating range) and then determines the nitrate-nitrogen concentration based on the attenuation spectrum.11-11-2010
20100283991GAS SENSOR WITH AN ESPECIALLY EXPLOSION-PROOF HOUSING - A gas sensor with a housing (11-11-2010
20090316140METHOD AND APPARATUS FOR USING INFRARED READINGS TO DETECT MISIDENTIFICATION OF A DIAGNOSTIC TEST STRIP IN A REFLECTANCE SPECTROMETER - A method and apparatus for using an infrared reading to detect the misidentification of a diagnostic test strip disposed on a feed table comprising the steps of determining if the test strip possesses specified reagents, reading the infrared reflectances from the reagent positions, determining if the reflectances are within an acceptable predetermined range and aborting the test if the infrared reflectances are not within the acceptable predetermined range.12-24-2009
20120188532ETHYL ALCOHOL-DETECTING DEVICE - The ethyl alcohol-detecting device of the present invention includes an ethyl alcohol-detecting portion that calculates an ethyl alcohol content corresponding to an ethyl alcohol concentration, based on a first subject image stored in a memory and a reference image stored in a nonvolatile memory; an interfering substance-detecting portion that calculates a degree of interference corresponding to the concentration of an interfering substance, based on a second subject image stored in the memory and the reference image stored in the nonvolatile memory; and a determination portion that determines that ethyl alcohol has been detected when the ethyl alcohol content is equal to or higher than a first predetermined threshold and the degree of interference is less than a second predetermined threshold, and determines that ethyl alcohol has not been detected when the ethyl alcohol content is equal to or higher than the first predetermined threshold and the degree of interference is equal to or higher than the second predetermined threshold.07-26-2012
20100231893METHOD AND DEVICE FOR SPECTRALLY DETECTING HEMOGLOBIN - The present disclosure provides systems and methods for detecting the presence of blood. Specific applications may include hunting, during which it may be necessary to track a wounded, bleeding animal. According to one embodiment, a device transmits light at one or more wavelengths to irradiate a region potentially containing blood. Hemoglobin in the blood absorbs or reflects more of the transmitted light than other matter in the region. A detector detects the light reflected from the region and determines if blood is present in the region using spectral analysis.09-16-2010
20120081694OPTICAL SCANNING AND IMAGING SYSTEMS BASED ON DUAL PULSED LASER SYSTEMS - The invention relates to scanning pulsed laser systems for optical imaging. Coherent dual scanning laser systems (CDSL) are disclosed and some applications thereof. Various alternatives for implementation are illustrated, including highly integrated configurations. In at least one embodiment a coherent dual scanning laser system (CDSL) includes two passively modelocked fiber oscillators. The oscillators are configured to operate at slightly different repetition rates, such that a difference δf04-05-2012
20120229797DISTANCE DETECTING INDUCTION DEVICE - A distance detection induction device 09-13-2012
20120229796System and method for detecting contaminants in a sample using near-infrared spectroscopy - A system and method for detecting a contaminant in a sample. The contaminant may comprise melamine or a derivative thereof and the sample may comprise a feed material. The method may comprise illuminating a sample to thereby generate a first plurality of interacted photons, collecting the interacted photons, passing the interacted photons through a tunable filter, and detecting the interacted photons to generate a near infrared data set representative of the sample. This near infrared sample may comprise a hyperspectral near infrared image. The method may further comprise fusing said near infrared data set with a Raman data set representative of sample. A system may comprise an illumination source, one or more collection optics, a tunable filter, and a detector configured to generate a near infrared data set. The system may further comprise a second detector configured for generating a Raman data set representative of a sample.09-13-2012
20120229798METHOD FOR AUTOMATIC PERFORMANCE DIAGNOSIS AND CALIBRATION OF A PHOTOMETRIC PARTICLE ANALYZER - A method is provided for diagnosing the operation of a photometric particle analyzer. The method may determine when the operation is degraded from normal operating conditions, automatically, and the result displayed locally as well as being transmitted to a remote observer. The present invention may be used by optical photometric particle analyzers, or by analyzers that measure other properties of particles collected on filters.09-13-2012
20100321670Apparatus for measuring the displacement of a valve rod of a motor-operated valve and transmitting a related signal - There is disclosed an apparatus for measuring the displacement of a valve rod of a motor-operated valve between an open position and a closed position. The apparatus include a disc, a crank, an illuminator, an infrared sensor/transmitter and an infrared receiver. The disc is mounted on the valve rod. The crank is pivotally connected to the disc. The illuminator is pivotally connected to the crank. The infrared sensor/transmitter is attached to a lower side of the illuminator to measure the displacement of the valve rod and transmit a signal related to the displacement. The infrared receiver is connected to the valve rod to transfer the signal to a computer.12-23-2010
20110122400ULTRAVIOLET LIGHT RECEIVING ELEMENT AND METHOD FOR MEASURING DOSE OF ULTRAVIOLET RADIATION - [Problems to be Solved] To provide a novel ultraviolet light receiving element which is selectively sensitive to ultraviolet radiation, and a method for measuring the dose of ultraviolet radiation using the ultraviolet light receiving element.05-26-2011
20110122399WHEEL SENSING ARRANGEMENT, WHEEL SENSOR AND METHOD - A wheel sensor (05-26-2011
20110122398Integrated Visible Pilot Beam for Non-Visible Optical Waveguide Devices - In one embodiment, a radiation based analysis system comprises a first radiation source to generate first radiation having a wavelength outside the visible spectrum, a second radiation source to generate second radiation having a wavelength within the visible spectrum, and a waveguide coupler to couple a portion of the first radiation and a portion of the second radiation into a combined radiation beam such that the first radiation and the second radiation follow a path that is substantially coaxial.05-26-2011
20110122395METHOD AND APPARATUS FOR MAPPING OF LINE-WIDTH SIZE DISTRIBUTIONS ON PHOTOMASKS - In general, in one aspect, a method includes determining a critical dimension (CD) distribution on a photomask by measuring deep Ultra-Violet (DUV) transmission across the photomask.05-26-2011
20100328648BROAD BAND REFERENCING REFLECTOMETER - A spectroscopy system is provided which is optimized for operation in the VUV region and capable of performing well in the DUV-NIR region. Additionally, the system incorporates an optical module which presents selectable sources and detectors optimized for use in the VUV and DUV-NIR. As well, the optical module provides common delivery and collection optics to enable measurements in both spectral regions to be collected using similar spot properties. The module also provides a means of quickly referencing measured data so as to ensure that highly repeatable results are achieved. The module further provides a controlled environment between the VUV source, sample chamber and VUV detector which acts to limit in a repeatable manner the absorption of VUV photons. The use of broad band data sets which encompass VUV wavelengths, in addition to the DUV-NIR wavelengths enables a greater variety of materials to be meaningfully characterized. Array based detection instrumentation may be exploited to permit the simultaneous collection of larger wavelength regions.12-30-2010
20100328647CARBON NANOTUBE-HYDROGEN PEROXIDE HYBRID BASED OPTICAL SENSING METHOD FOR ASSESSMENT OF ANTIOXIDANT POTENCY - An ultrasensitive dual optical method for measuring antioxidant concentration and total antioxidant capacity is provided. Using the process, the detection limit for vitamin C is as low as 7 nM. The method is based on a hybrid of single walled carbon nanotubes (SWNT) with hydrogen-peroxide. The method provides is a robust, cheap, fast, and reusable optical sensing method for antioxidant and total antioxidant capacity measurement in foods and plasma. The method can also be developed as a miniature assay for both in vitro and in vivo detection.12-30-2010
20100328646OPTICAL NANOPOROUS SENSORS FOR DETECTION OF WATER BASED VAPORS AND THEIR LEAKAGE FROM SEALED CONTAINERS - An optical sensor for detecting water vapors and water based vapors and comprising a semiconductor member having a semiconductor surface with hydrophilic pores therein. An illumination of the semiconductor surface by white light produces the reflectance spectral profile due to light spectral. The spectral profile is exposed to the water vapors and the change in the reflectance spectral response is measured during this exposure.12-30-2010
20080297767Reducing exposure risk in ultraviolet light-based electro-optical systems - In an electro-optical system for reading ultraviolet (UV) light-responsive indicia illuminated by a UV light beam having a wavelength shorter than visible light, safety techniques are described for reducing exposure to the UV light beam to within safe limits.12-04-2008
20080297765Apparatus and Method for Determining Trench Parameters - An apparatus includes an evaluating unit and a peak detection unit. The peak detection unit may be configured to determine at least one peak parameter of a peak in a Fourier transformed reflection spectrum of infrared radiation reflected off a sample that may comprise trench structures. The evaluation unit may be configured to determine from the at least one peak parameter and from a correction value containing information about an effective refractive index of the sample, a trench parameter of the trench structures.12-04-2008
20120320366METHOD OF DETERMINING THE OPTIMAL WAVELENGTH FOR INSPECTING OPHTHALMIC LENSES - Methods for inspecting ophthalmic lenses with different wavelengths of radiation are disclosed herein.12-20-2012
20120320367INSPECTION METHOD AND DEVICE FOR SAME - In order to rapidly inspect shape defects in the object of inspection that is the minute pattern on a magnetic recording medium formed from patterned media, in the disclosed patterned media defect inspection method detected spectral waveform data is compared with reference-standard spectral reflectance waveform data, which is stored in a database and the pattern-shape of which is known, and defects are detected. The type of the defects is determined on the basis of the disparity, for each detected wavelength, between the spectral waveform data of the detected defects, and the reference-standard spectral reflectance waveform data.12-20-2012
20100231894OPTICAL DEVICE FOR OBSERVING MILLIMETRIC OR SUBMILLIMETRIC STRUCTURAL DETAILS OF AN OBJECT WITH SPECULAR BEHAVIOUR - A device for observation, by reflection, of the structural details of an object (09-16-2010
20100231892METHOD OF MEASURING AND/OR JUDGING THE AFTERGLOW IN CERAMIC MATERIALS AND DETECTOR - The invention relates to a method of measuring and/or judging the afterglow in ceramic materials, especially Gd2θ2S materials and/or precursor materials by measuring the Eu-, Tb- and/or Yb-content.09-16-2010
20120327398Method for the Chip-Integrated Spectroscopic Identification of Solids, Liquids, and Gases - Methods and systems for a label-free on-chip optical absorption spectrometer consisting of a photonic crystal slot waveguide are disclosed. The invention comprises an on-chip integrated optical absorption spectroscopy device that combines the slow light effect in photonic crystal waveguide and optical field enhancement in a slot waveguide and enables detection and identification of multiple analytes to be performed simultaneously using optical absorption techniques leading to a device for chemical and biological sensing, trace detection, and identification via unique analyte absorption spectral signatures. Other embodiments are described and claimed.12-27-2012
20120327397OPTICAL FLOW CELL DETECTOR - Optical flow cell detector comprising a sample inlet and outlet in fluidic communication through a flow cell channel of cross sectional area A, an input light guide with an light exit surface arranged adjacent and in optical alignment with a light entrance surface of an output light guide, wherein the input light guide and the output light guide protrudes into the flow cell channel and wherein the distance between the light exit surface and the light entrance surface is less than 1.0 mm, and wherein the cross sectional area of the protruding portions of the input light guide and the output light guide in the flow direction is less than A/2.12-27-2012
20120327396MULTIPLE RADIATION INSPECTION OF OPHTHALMIC LENSES - Methods for inspecting ophthalmic lenses with different wavelengths of radiation are disclosed herein.12-27-2012
20120327395SPECTROMETER APPARATUS USING CONTINUOUS WAVE LASER AND PHOTOMULTIPLIER TUBE - Disclosed is a spectrometer apparatus using a continuous wave laser and a photomultiplier tube. The spectrometer apparatus includes a continuous wave laser irradiating part to irradiate a continuous wave laser to introduced particles, a scattering light measuring part to measure a scattering light emitted from the particles due to the continuous wave laser, a triggering signal generator to generate a triggering signal if a measurement value of the scattering light measuring part is greater than a preset value or equal to the preset value, a pulse laser irradiating part to receive the triggering signal to irradiate a pulse laser to the particles, and a spectral analysis part to measure an emission light generated from the particles due to the pulse wave laser to analyze elements consisting of the particles.12-27-2012
20120133922HOLOGRAPHIC CONDITION ASSESSMENT SYSTEM FOR A STRUCTURE INCLUDING A SEMICONDUCTOR MATERIAL - An improved optical infrared and ultraviolet imaging and testing system including a primary imaging device with a target portion and a secondary imaging device for determining the presence and nature of various external (e.g. magnetic field, microwave, bioelectric or incident infrared, thermal, ultraviolet, radiation, or x-rays) or internal stresses (e.g., photo-generated carriers or photo-induced resistance) or other conditions acting upon the primary detection device which are optically enhanced for detection by the secondary detection device or devices.05-31-2012
20100033709INTEGRATED TERAHERTZ ANTENNA AND TRANSMITTER AND/OR RECEIVER, AND A METHOD OF FABRICATING THEM - An integrated antenna for transmitting or receiving radiation in a frequency range from 100 GHz to 3 THz, the antenna being characterized in that it comprises: a conductive ground plane (GP) deposited on a “top” surface (S) of a dielectric or semiconductor substrate (SB); a conductive ribbon (CR) extending above said ground plane (GP) and forming an angle (β) therewith, so as to form a radiating structure (RS) of the transverse electromagnetic wave horn type; and a planar waveguide (G) comprising at least first and second conductive strips (CS02-11-2010
20130010281INSPECTION METHOD AND INSPECTION DEVICE - An inspection method and an inspection device, or apparatus each capable of conducting composition analysis of a defect detected by elastic or stokes scattered light, an inspection surface or defect on the surface of the inspection surface, or a defect on the surface of the inspection object and its internal composition. A surface inspection method for optically detecting elastic or stokes scattering or inelastic or anti-stokes scattered light from inside the surface of the inspection object, for detecting existence of defects of the inspection object and features of the defects, for detecting positions of the detected defects on the surface of the inspection object, classifying and analyzing the detected defects in accordance with their features on the basis of the positions of the defects and the features of the defects or the classification result of the defects.01-10-2013
20130010282ILLUMINANCE DISTRIBUTION DETECTION METHOD IN EXTREME ULTRAVIOLET LIGHT SOURCE APPARATUS AND POSITIONING METHOD OF LIGHT FOCUSING OPTICAL MEANS - A method of detecting an illuminance distribution of light emitted by an extreme ultraviolet (“EUV”) light source apparatus that includes a light condensing optical means. EUV light that is condensed to a condensing point is passed through a detector that is disposed around an optical axis without being detected, and is guided to an exposure unit. EUV light that is not condensed at the middle condensing point and is not guided to the exposure unit is detected by the detector. The illuminance distribution of the light that is not condensed at the middle condensing point is thereby obtained. The illuminance distribution of the light that is condensed at the middle condensing point may be determined, based on a correlation between the illuminance distribution of the light that is not condensed at the middle condensing and the illuminance distribution of the light that is condensed at the middle condensing point.01-10-2013
20130016337HEROIN DETECTION BY RAMAN SPECTROSCOPY FROM IMPURE COMPOSITIONS COMPRISING AN INTERFERING FLUORESCENT CONTAMINANT - A method of identifying the presence of heroin in an impure heroin composition which contains heroin and at least one fluorescent contaminant which interferes with a Raman signal from the heroin. The method may include contacting the mixture with a solvent such as an alcohol, then contacting the resulting alcohol composition with a SERS surface. The surface may then be exposed to laser light from a hand-held Raman spectrometer to detect a Raman signal from the heroin. An apparatus for performing the method is also provided.01-17-2013
20130016336IMMERSION PROBE USING ULTRAVIOLET AND INFRARED RADIATION FOR MULTI-PHASE FLOW ANALYSIS - A system and method for determining characteristics of a multiphase flow in a well/pipe are disclosed. The disclosed system and method use an optical immersion probe including a flow gap across which two or more types of radiation are transmitted in order to measure absorptions of two or more substances within the multiphase flow. Primarily, broadband ultraviolet (UV) and/or near infrared radiations (NIR) are utilized with the probe to gather absorption data at and/or around at least one of the water peaks and at and/or around one or more oil or oil-condensate peaks. This data may be utilized to calculate the water-cut of the multiphase flow over a wider range of gas volume fractions. Additionally, pressure ports having pressure sensors being located on the optical immersion probe for determining the impact pressures and flow rates of different phases of the multiphase flow may also be used.01-17-2013
20130016339METHOD OF CHARACTERISING A SCATTERING COLOURED PIGMENTAANM Edwards; John LalandeAACI DurhamAACO GBAAGP Edwards; John Lalande Durham GBAANM Lowry; KarlAACI YarmAACO GBAAGP Lowry; Karl Yarm GBAANM Parnham; Emily RuthAACI Stockton-on-TeesAACO GBAAGP Parnham; Emily Ruth Stockton-on-Tees GBAANM Reid; Sean Oliver EdwardAACI AshbourneAACO GBAAGP Reid; Sean Oliver Edward Ashbourne GBAANM Robb; JohnAACI Stockton-on-TeesAACO GBAAGP Robb; John Stockton-on-Tees GBAANM Tonkin; Rebecca LouiseAACI Stockton-on-TeesAACO GBAAGP Tonkin; Rebecca Louise Stockton-on-Tees GB - The invention provides a method of characterising a scattering coloured pigment for use in the determination of the absorption and scattering coefficients of the scattering coloured pigment, the method comprising the step of obtaining a reflectance spectrum of a mixture of the scattering coloured pigment with a substantially non-absorbing scattering pigment at a plurality of different volume fractions wherein the substantially non-absorbing scattering pigment has a particle size greater than 0.6 micron. Also provided is a pigment characterisation system adapted to perform the method of the invention to characterise a scattering coloured pigment.01-17-2013
20110157581Investigation of Vehicle Glazing Panels - The condition of a glazing panel is investigated using a viewing device to view an illuminating electromagnetic radiation profile at a target zone. Data relating to the viewed radiation profile is compared to datum data, to produce an output related to the condition of the glazing panel at the target zone.06-30-2011
20130021596APPARATUS AND METHOD OF BIOMETRIC DETERMINATION USING SPECIALIZED OPTICAL SPECTROSCOPY SYSTEMS - Methods and apparatuses for performing biometric determinations using optical spectroscopy of tissue. The biometric determinations that are disclosed include determination or verifications of identity, estimation of age, estimation of sex, determination of sample liveness and sample authenticity. The apparatuses disclosed are based upon discrete light sources such as light emitting diodes, laser diodes, vertical cavity surface emitting lasers, and broadband sources with multiple narrow-band optical filters. The multiple light sources are encoded in a manner that the tissue response for each source can be efficiently measured. The light sources are spaced at multiple distances from a detector to contribute differing information to the biometric determination task as do light sources with different wavelength characteristics. Apparatuses are disclosed that incorporate a spectral biometric sensor with a personal electronic device such as cellular telephones, personal digital assistants, wristwatches, electronic fobs for the purpose of providing secure biometric access to protected property.01-24-2013
20120242980GAS MEASUREMENT MODULE FOR USE IN THERAPEUTIC SETTINGS COMPRISING REFLECTIVE SCANNING MICROSPECTROMETER - A high speed burner having very low polluting emissions, suitable for the process for heat treatment furnaces of a load in free atmosphere. The burner is capable of creating a compact and lean flame with the peculiarity of keeping the NOx emissions at very low levels at any chamber temperature and at any excess combustion air. The burner requires a single inlet for the comburent air and a single inlet for the combustible gas.09-27-2012
20120242978Dual Narrow-Broad Focus Sensing Of Proximity - A proximity detection system is described among devices in a unified communications network. A narrow beam LED and a diffuse beam LED, both located near a first object, such as a computer monitor, provide a light illumination pattern detected by a narrow beam light detector and a broad beam light detector, both located near a second device, such as a headset. A processor calculates the ratio of measured intensity from the narrow beam LED compared to the broad beam LED as measured by the broad beam detector to provide an estimate for how far off axis the second object (e.g., a user of the headset) is with respect to the centerline in front of the second object (e.g., the computer monitor). The processor also calculates the ratio of measured intensity of the narrow IR beam detector to the broad IR beam detector to provide an estimate of the second object's orientation (e.g., the headset user's head) with respect to the first object to determine if the second object is facing the first object.09-27-2012
20080246951Method and system for using reflectometry below deep ultra-violet (DUV) wavelengths for measuring properties of diffracting or scattering structures on substrate work-pieces - A method and apparatus is disclosed for using below deep ultra-violet (DUV) wavelength reflectometry for measuring properties of diffracting and/or scattering structures on semiconductor work-pieces is disclosed. The system can use polarized light in any incidence configuration, but one technique disclosed herein advantageously uses un-polarized light in a normal incidence configuration. The system thus provides enhanced optical measurement capabilities using below deep ultra-violet (DUV) radiation, while maintaining a small optical module that is easily integrated into other process tools. A further refinement utilizes an r−θ stage to further reduce the footprint.10-09-2008
20080246947Optical Pulse Generator for Distributed Temperature Sensing Operating at a Characteristic Wavelength in a Range Between 1050 Nm and 1090 Nm - An improved laser source for use in a distributed temperature sensing (DTS) system (and DTS systems employing the same) includes a laser device and drive circuitry that cooperate to emit an optical pulse train at a characteristic wavelength between 1050 nm and 1090 nm. An optical amplifier, which is operably coupled to the laser device, is adapted to amplify the optical pulse train for output over the optical fiber sensor of the DTS system. In the preferred embodiment, the laser device operates at 1064 nm and outputs the optical pulse train via an optical fiber pigtail that is integral to its housing. The optical power of the optical pulse train generated by the laser source is greater than 100 mW, and preferably greater than 1 W, at a preferred pulse repetition frequency range between 1 and 50 kHz, and at a preferred pulse width range between 2 and 100 ns.10-09-2008
20080225271Vehicle Operation Support Method and System - The present invention relates to a vehicle operation support system and an associated method of improving a driver's visibility. The vehicle may be equipped with at least one UV light which irradiates the ambient environment with UV radiation. In some examples, the direction or the intensity of UV radiation may be changed in response to vehicle and environment variables.09-18-2008
20080225270ULTRAVIOLET IRRADIATION SYSTEM, CURING REACTION DETECTOR USED FOR THE SAME AND CURING METHOD OF ULTRAVIOLET CURING RESIN USING THE CURING REACTION DETECTOR - A measured fluorescence amount and a previously set threshold value α09-18-2008
20080225269SYSTEM AND METHOD FOR RATIOMETRIC NON-LINEAR COHERENT IMAGING - The present invention includes a system and method for coherent imaging. The system of the present invention includes a light source adapted to provide coherent light to illuminate a sample resulting in optically mixed coherent signals and a detector adapted to receive the optically mixed coherent signals and produce an output signal in response thereto. The optically mixed coherent signals will be a set of sum and difference frequency combinations of the frequencies in the coherent light. A processor is connected to the detector and adapted to ratio a selected two of the optically mixed coherent signals in response to the output signal received by the detector and to generate an image in response to the ratioed optically mixed coherent signals, which can be displayed for a user.09-18-2008
20130176552INTERPOSER BASED IMAGING SENSOR FOR HIGH-SPEED IMAGE ACQUISITION AND INSPECTION SYSTEMS - The present invention includes an interposer disposed on a surface of a substrate, a light sensing array sensor disposed on the interposer, the light sensing array sensor being back-thinned and configured for back illumination, the light sensing array sensor including columns of pixels, one or more amplification circuitry elements configured to amplify an output of the light sensing array sensor, the amplification circuits being operatively connected to the interposer, one or more analog-to-digital conversion circuitry elements configured to convert an output of the light sensing array sensor to a digital signal, the ADC circuitry elements being operatively connected to the interposer, one or more driver circuitry elements configured to drive a clock or control signal of the array sensor, the interposer configured to electrically couple at least two of the light sensing array sensor, the amplification circuits, the conversion circuits, the driver circuits, or one or more additional circuits.07-11-2013
20130176553METHOD AND APPARATUS FOR NON-DESTRUCTIVE TESTING OF A SEED - The present invention provides a method and apparatus for non-destructive testing of a seed. In various embodiments, the method may comprise vibrating the seed to orient the seed on an axis, identifying a location of a known feature of the seed, determining a sample location on the seed based on the location of the known feature, and performing a non-destructive testing procedure on the seed proximate the sample location. In one embodiment, the method may comprise removing a sample portion of the seed from the sample location without damaging the embryo of the seed. Accordingly, the viability of the seed may be maintained while allowing for subsequent testing on the sample portion of the seed.07-11-2013
20130176554Integrated Nanobeam Cavity Array Spectrometer - An on-chip integrated nanobeam cavity array spectrometer (INAS) having an array of waveguide-coupled nanobeam cavities. Waveguide splitters are used to bring the signal from the input waveguide into each cavity. The spectrum of unknown input signal is obtained by collecting signal from each nanobeam cavity in the array.07-11-2013
20100026988ONLINE SENSOR FOR MONITORING CHEMICAL CONTAMINATIONS IN HYDRAULIC FLUIDS - An online sensor for monitoring chemical contaminations in hydraulic fluids, having a receiving device for the fluid to be monitored, the device having observations windows disposed on two opposite sides, is characterized in that the online sensor has an IR emitter and an IR detector comprising at least two, preferably four detector fields for IR spectroscopy, wherein the fields are disposed opposite of each other on both observations windows. This provides a sensor that is capable of detecting the maintenance-relevant parameters of hydraulic fluids based on phosphate esters online, which is to say without having to withdraw the same from the airplane's hydraulic system and remove the same as a sample.02-04-2010
20080218734Attenuated total reflection probe and spectrometer therewith - An attenuated total reflection probe has a prism and a supporter. The prism is made of an optical material which transmits light in far ultraviolet region, and has a contact plane to be in contact with a sample, and an incoming plane and an outgoing plane both not to be in contact with the sample. The supporter has an opening and is connected hermetically with the prism around the opening and eventually exposes the contact plane facing the opening. The contact plane, the incoming plane and the outgoing plane of the prism are formed such that light transmitting the incoming plane enters the contact plane at an incident angle larger than critical angle and that the light totally reflected by the contact plane goes out through the outgoing plane.09-11-2008
20080218733Method and Device for Determining an Alcohol Content of Liquids - A method determines an alcohol content of liquids that contain at least water and alcohol as well as sugar or similar substances, in the liquid. The liquid is located in an analysis cell is irradiated by an IR-LED light source, which emits infrared radiation with λ=1000-1500 nm. The IR light absorption is measured at least two different wavelengths, and the measurement values are converted into data on the alcohol content of the liquid. The liquid is irradiated with a first IR radiation with a wavelength λ1, where the absorption coefficient of the alcohol, and the absorption coefficient of the water, are identical in magnitude, and with at least a second IR radiation with a wavelength λ2, where the absorption coefficients and are different. The absorption measurement values determined by an IR detector are applied to a calculating unit for the calculation of the alcohol content.09-11-2008
20130169950PORTABLE REFLECTOMETER AND METHOD FOR CHARACTERISING THE MIRRORS OF SOLAR THERMAL POWER PLANTS - The invention relates to a portable reflectometer and to a method for characterizing the collector mirrors used in solar power plants for the in-field characterization of reflection coefficients. The equipment includes all of the components required for this measurement, such as a module to measure the reflection coefficient of the mirror, an electronic data acquisition and processing system, a system for processing data and controlling the equipment, a system for storing the data of interest, a user interface system, and a system allowing communication between the aforementioned systems and an outer casing. The equipment can be used to characterize the specular reflection coefficient of flat or curved mirrors of different thicknesses, without requiring adjustments to be made to the equipment, minimizing the influence of diffuse reflection on the measurement.07-04-2013
20130135607SCATTERED RADIATION FIRE DETECTOR AND METHOD FOR THE AUTOMATIC DETECTION OF A FIRE SITUATION - The invention relates in particular to a scattered radiation fire detector (05-30-2013
20130094014PROJECTION DISPLAY DEVICE WITH POSITION DETECTION FUNCTION - A projection display device having a projection device projecting an image on a surface, and a position detection function of detecting an object's position between the surface and the projection device, includes: a light source emitting light beams toward the object; a light detector detecting the light beams reflected by the object; and a position detector detecting the object's position in an imaginary plane based on the light detector's result, wherein the light source emits, as the light beams, first through third light beams having first through third intensity distributions, the second intensity distribution having a highest intensity at a position failing to overlap a highest intensity of the first intensity distribution, and the third intensity distribution having a highest intensity portion at a position failing to overlap a straight line connecting the highest intensity portions of the first and second intensity distributions.04-18-2013
20130169951ULTRAVIOLET PROTECTION EFFECT EVALUATION METHOD, EVALUATION APPARATUS, AND RECORDING MEDIUM - An evaluation method for evaluating the ultraviolet protection effect of a measurement sample applied on a substrate includes a first step of measuring, at predetermined wavelength intervals, a change over time of a spectral transmission spectrum of the measurement sample within a predetermined wavelength range by irradiating light from a light source that includes ultraviolet light, visible light, and infrared light under a predetermined irradiation condition; a second step of establishing, based on the change over time of the spectral transmission spectrum, a correlation between a light irradiation time and an erythema effective dose per unit time, which is obtained by dividing an erythema effective dose of the measurement sample by an erythema effective dose per 1 MED; and a third step of calculating an in vitro rSPF predictive value for the measurement sample on the basis of a time until a cumulative erythema effective dose, which is obtained through time integration based on the correlation, reaches 1 MED.07-04-2013
20130169949CHANGED OPTICAL PATH MEASURING DEVICE FOR COMPONENT CONCENTRATION OF WATER AND MEASURING METHOD THEREOF - Measuring device of the present invention includes a plurality of measuring sites for generating a plurality of optical paths and various dilutions. The range for concentration measurement and the measurement accuracy are enhanced due to the plurality of optical path length, and the interference on the measurement ranges and results caused by the concentration or the turbidity of suspended solid is reduced and removed by water sample dilution, and thus the characteristic wavelengths of the components in the water are measured. Next, the information of spectrum database is used to determine the ingredients which may exist in the water (qualitative analysis), and UV-VIS-NIR absorbance spectrum analysis is used to obtain the concentration of the respective ingredients in the water at the same time (quantitative analysis).07-04-2013
20130128261OPTICAL HAZARD AVOIDANCE AND METHOD - A source of light that could cause ocular damage within a given range from the source of light, such as a first laser, is accompanied by an optical hazard avoidance device, such as a second laser, that stimulates voluntary, involuntary, or both voluntary and involuntary responses, either physiological or behavioral or both physiological and behavioral, within one or more hazard zones, such as by inducing gaze aversion within the viewer. For example, a visible laser beam induces gaze aversion, pupil contraction or a combination of gaze aversion and pupil contraction, reducing the dose rate or exposure of the ocular tissue to damaging radiation from a primary source. In one example, the primary source is a UV Raman detector and the visible laser beam is selected to induce gaze aversion.05-23-2013
20110273702OPTICAL MEASURING METHOD AND SYSTEM - A detecting system for detecting flaws in a sample includes an illumination assembly and detecting assembly. The illumination assembly has an infra-red light source and illumination optics for directing a beam of light from the light source to a spot on or within a sample. The detection assembly has a detector for detecting light from an illuminated spot on or within a sample and detection optics for directing light from an illuminated spot on or within a sample to the detector. Such a system may be used for determining flaws in a sample such as a thermal barrier coating on a turbine blade, or a dental or other medical part. In particular the system may be used for determining flaws in a ceramic sample. A method for detecting flaws in a sample is further described.11-10-2011
20080198363System and Method to Align and Measure Alignment Patterns on Multiple Layers - A system and method are used to increase alignment accuracy of feature patterns through detection of alignment patterns on both a surface layer and at least one below surface layers of an object. A first frequency of light, such as visible light, is used to detect alignment patterns on the surface layer and a second frequency of light, such as infrared light, is used to detect patterns one layer below the surface. For example, reflected light of a first frequency and transmitted light of a second frequency are co-focused onto detector after impinging on respective alignment patterns. The co-focused light is then used to determine proper alignment of the object for subsequent pattern features. This substantially increases accuracy of alignment of pattern features between layers, as compared to conventional systems.08-21-2008
20080198362Non-Dispersive Electromagnetic Radiation Detector - A flow-through gas cell and a method for passing a sample gas through a flow-through gas cell for spectroscopy are disclosed. In an embodiment, a flow-through gas cell is disclosed. The gas cell includes a substantially cylindrical interior cavity. The interior cavity comprises an inner surface that is reflective. In addition, the gas cell includes a gas inlet and a gas outlet. In the gas cell, a source is disposed on a side of the gas cell, and a detector is disposed on the same side of the gas cell as the source. The source emits electromagnetic radiation, and the detector detects electromagnetic radiation. The gas cell further includes mirrors disposed on opposing ends of the interior cavity.08-21-2008
20130148104ADVANCE SPATIAL AND SPECTRAL TARGET GENERATION FOR HARDWARE IN THE LOOP SYSTEMS - A system comprises a micro-mirror device including a surface having a plurality of micro-mirrors movable to reflect light incident to the micro-minors in at least a first direction and a second direction, a control circuit configured to arrange the micro-mirrors to project a spatial image using the incident light and to generate spectral content for the formed spatial image, and a spectrometer circuit configured to extract spectral image information from the generated spectral content and provide the spectral image information to the control circuit. The spectral content includes light having one or more wavelengths outside a range of wavelengths for visible light, and the control circuit is configured to rearrange one or more micro-mirrors of the micro-mirror device to adjust spectral content based on the extracted spectral image information,06-13-2013
20130148105METHOD AND APPARATUS FOR QUALIFYING OPTICS OF A PROJECTION EXPOSURE TOOL FOR MICROLITHOGRAPHY - A method for qualifying optics (06-13-2013
20110235022APPARATUS, METHOD AND COMPUTER-READABLE STORAGE MEDIUM FOR DETERMINING THE RING-DOWN TIME IN A SPECTROMETER SYSTEM - A system is provided that includes a cavity ring-down spectrometer and a processor. The spectrometer is configured to pass, through a cavity resonator, a modulated, continuous-wave electromagnetic signal at each of one or more selectable, transmission frequencies in the Terahertz region of the electromagnetic spectrum. The spectrometer includes a transmitter that, with the cavity resonator, is configured so as to excite a single resonant mode of the cavity resonator. The processor is configured to receive a measurement of the passed portion of the modulated electromagnetic signal, and determine a phase shift of the modulated electromagnetic signal based upon the measurement. The processor is then configured to calculate a ring-down time of the cavity resonator as a function of the phase shift.09-29-2011
20100290031SPECTRAL ANALYSIS METHOD FOR DETERMINING CHLOROPHYLL CONCENTRATION - The invention relates to a method and a device for determining a predefined spectral range, particularly the spectral range around the red edge. In said method, the analysis of the spectral range is carried out by means of two overlapping spectral value functions. The invention also relates to a method and a system for characterizing existent vegetation.11-18-2010
20100309455Microscopic Total Reflection Measuring Apparatus - An object of the present invention is to provide a total reflection measuring apparatus which, while visually observing a specific minute area of a measurement object, is capable of efficiently obtaining optical data on the basis of the total reflection measurement. A microscopic total reflection measuring apparatus of the present invention comprises a Cassegrain mirror 12-09-2010
20120281202PRINTING APPARATUS AND PAPER SIZE IDENTIFYING METHOD FOR THE APPARATUS - A printing apparatus capable of detecting a number of different paper sizes includes a main body, an input device, a paper guide, a rack member, and a detector. The main body prints on paper; the input device contains the paper; the paper guide moves to fit two sides of the paper; the rack member moves simultaneously with the paper guide, and includes at least one identifier; each identifier corresponding to one of the different paper sizes. The detector detects the identifier to determine one of the different paper sizes and transmits the determined paper size to the main body, and the main body compares the determined paper size with a print setup. The main body reminds a user when the determined paper size does not conform to the print setup.11-08-2012
20130182241MULTI WAVELENGTH EXCITATION/EMISSION AUTHENTICATION AND DETECTION SCHEME - A system and method for authentication of secure products is disclosed. The security feature contains a first component in the form of an emitter capable of emitting light in response to external pump light. The security feature also contains a second component in the form of a taggant that absorbs light in a spectrally narrow range compared to the broader excitation spectrum of the first material. In this manner the emitter and taggant work in combination with one another to create an emission response significantly dependent on the illumination wavelengths and unique to the specific combination of the components. The emitter and taggant can be in the form of a mixture. Further the emitter and taggant may be applied in close proximity to one another, such as within two separate coating layers on a suitable substrate.07-18-2013
20130155388DEVICE AND METHOD FOR DIFFUSION OPTICAL TOMOGRAPHY - A device and method for diffusion optical tomography are disclosed. The device includes a sensing circuit with a plurality of light sources and sensors and an optical tomography element having a control unit, a computation unit and an image reconstruction unit. First, the computation unit constructs an image model of an object using optical parameters of the object, and performs decomposition on the image model. Then, the control unit instructs the light sources to emit light to the object, and receives a plurality of optical signals generated by the object in response to the light. Finally, the image reconstruction unit combines the optical signals and the decomposed image model and reconstructs an image of the object based on the combination of the optical signals and the decomposed image model.06-20-2013
20130155389CONTROL AND SENSING SYSTEM FOR DIFFUSION OPTICAL TOMOGRAPHY AND METHOD FOR OPERATING THE SAME - A control and sensing system for diffusion optical tomography and a method for operating the same are disclosed. The control and sensing system includes a control unit and a sensing circuit with a plurality of light sources and sensors, each light source being surrounded by a corresponding predetermined number of the sensors. The control unit instructs the light sources to individually emit light to an object, so the object generates a plurality of optical signals, and instructs the predetermined number of the sensors corresponding to each light source to receive the optical signals and transmit them to the control unit, thereby reducing the complexity of the control and sensing system.06-20-2013
20110292374Nadir Emissive Hyperspectral Measurement Operation (NEHMO) - A method for measuring spectral characteristics includes capturing spectral-spatial data that includes radiance measurements over spectrally flat, highly emissive surface portions of a sample material and heater at least two different heater temperatures for transmissive and/or emissive configurations. Temperatures of the sample material and heater are determined at the different heater temperatures for each configuration using, in each instance, radiance measurements taken after the temperatures of the heater and sample material have both stabilized. The transmissivity of the sample material is determined using the temperatures determined in the transmissive configuration and spectral-spatial data collected at selected points of interest over the sample material. The emissivity of the sample material is determined using the temperatures determined in the emissive configuration, the spectral-spatial data collected at selected points of interest over the sample material, and the transmissivity. The reflectivity of the sample material is determined using the emissivity and transmissivity.12-01-2011
20110310379APPARATUS AND METHOD FOR MEASURING TERAHERTZ-ABSORPTION CHARACTERISTICS OF SAMPLES - A method for measuring an absorption characteristic of a sample comprises: providing a microstrip waveguide comprising a ground plane, an elongate conductive strip having a first end and a second end, and a dielectric substrate separating the ground plane from the elongate strip such that the strip extends from its first end to its second end in a plane substantially parallel to the ground plane; emitting electromagnetic radiation from a first intermediate position along the microstrip waveguide, said first intermediate position being a position between the first and second ends of the strip, such that said radiation propagates along the waveguide in a direction towards the second end; positioning a sample at a position external to the microstrip waveguide and between the first intermediate position and a second intermediate position along the microstrip waveguide, the second intermediate position being a position between the first intermediate position and the second end, such that at least a portion of the sample is exposed to the evanescent electric field of the propagating radiation; and detecting at least one characteristic of the propagating radiation at said second intermediate position. Corresponding apparatus is also disclosed.12-22-2011
20130188170OPTICAL ABSORPTION SPECTROSCOPY - An optical absorption spectroscopy apparatus comprises a multi-pass optical cell (07-25-2013
20130188172MICROFLUIDIC CHIP ASSEMBLY - In one embodiment, an optical system includes a microfluidic chip assembly. The microfluidic chip assembly includes a first structure that provides a first wall of a fluid channel. A second structure provides a second wall of the fluid channel. The second structure includes a diffraction grating configured to provide, in the presence of incident light of a wavelength band of interest on a first surface of the second structure, a plurality of regions of high intensity light within the fluid channel.07-25-2013
20130188171METHOD FOR DETERMINING THE PH VALUE OF A LIQUID AND SENSOR ARRANGEMENT - A system and method for determining the pH value of a liquid. The system and method excite the liquid molecules in the liquid by light with a predetermined wavelength and an intensity component, transmitted through the liquid in a predetermined wavelength range, of the light used for excitation is captured. This intensity component is used to produce a wavelength/intensity absorption characteristic and this absorption characteristic is related to a reference absorption characteristic associated with a specific pH value of the liquid. The system and method thus can be used to obtain drinking water from a fuel for aircraft.07-25-2013
20120019809METHOD AND APPARATUS FOR IMAGING - A system that incorporates teachings of the present disclosure may include, for example, an apparatus that includes a processor coupled with a memory where the processor is operable to obtain a first speckled pattern of a first defocused image of a neighborhood of a location on an object, to obtain a second speckled pattern of a second defocused image of the neighborhood, to determine a shift between the first and second speckle patterns, and to calculate slope information of a surface profile at the location based on the determined shift. Other embodiments are disclosed.01-26-2012
20120019808APPARATUS FOR ABSOLUTE VARIABLE ANGLE SPECULAR REFLECTANCE MEASUREMENTS - An apparatus for measuring specular reflectance of a sample is provided including a light source for transmitting a beam of light at an angle of incidence onto a surface of a sample; a polarising filter comprising a wire grid that avoids a need for collimation of the incident beam of light; a sample holder for mounting the sample; and a detector assembly for detecting a beam of light which is specularly reflected from a surface of the sample; wherein the sample holder and detector assembly are mounted for relative movement, such that the light source, the detector assembly and the sample holder are relatively positionable for a specularly reflected component of a transmitted light beam to be detected for different angles of incidence of the light beam.01-26-2012
20120019807METHOD FOR INSPECTING THE INSIDE OF A NARROW HOSE OR TUBE PARTICULARLY FOR MEDICAL USE - Method and system for inspecting the inside of a small channel, e.g. a flexible tube or hose, particularly for medical use, e.g. included in an endoscope, for the presence of inside contaminations on the wall of the tube, comprising providing the inside of the channel with a liquid having a refractive index which is higher than the refractive index of the channel wall, transmitting a signal into one end of the channel having a wavelength w, comparing the spectrum of the signal received at the other end of the channel with the wavelength w of the transmitted signal and determining, e.g. by a spectrum analyzer, whether the latter signal contains any wavelength w′ which is unequal to the wavelength w of the transmitted signal, and indicating that, when not any wavelength w′ is determined unequal to w, the channel is not contaminated or that, when any wavelength w′ is determined unequal to w, the channel is contaminated. The system may include means for cleaning the inside of the channel by means of said liquid having a refractive index which can be higher than the refractive index of the channel wall which thus is used both as cleaning liquid and as light conducting core.01-26-2012
20130100438Method and Apparatus for Detecting a Vehicle Movement - The description relates to a method and a motion sensor for detecting a vehicle movement with respect to a subsurface. The motion sensor comprises a light source unit (04-25-2013
20130100437METHOD OF COMPUTING AN EFFECTIVE BANDWIDTH OF A MULTIMODE FIBER - A method of assessing the power penalty at a given bit error rate of a multimode fiber including measuring a set of elementary fiber responses corresponding to different offset launches of light over the core radius into the multimode fiber, generating a global fiber response by applying, to the set of elementary fiber responses, a set of weighting coefficients and delays depending on the different offset launches of the elementary fiber responses, and computing a parameter representative of a fiber power penalty from the global fiber response, wherein the set of weighting coefficients includes several subsets of weighting coefficients time delayed relative to one another, wherein at least one relative time delay is not set to zero, and wherein weighting coefficients of each subset depend on the different offset launches of the elementary fiber responses.04-25-2013
20130100436MOLECULAR FILTERS - Molecular filters are disclosed herein. An example of the molecular filter includes a rolled substrate having an interior surface and opposed ends that are substantially orthogonal to the interior surface. The rolled substrate defines a layer and a fluid flow path extending from one of the opposed ends to another of the opposed ends. A template is positioned on the interior surface of the rolled substrate. The template includes a matrix, and molecule template locations formed in the matrix.04-25-2013
20120075618PHOTOACOUSTIC SENSOR - Embodiments of the apparatus, systems, and methods relate to a photoacoustic sensor includes an excitation source, a modulator, a quantum dot filter, an interferometer, a gas chamber, and a microphone. The excitation source generates a monochromatic light. The modulator intensity modulates the monochromatic light at a first modulation frequency. The quantum dot filter down converts the modulated monochromatic light into a broadband spectrum of infrared light. The interferometer further intensity modulates the broadband spectrum such that the at least one wavelength component of the broadband spectrum is further intensity modulated at a second modulation frequency. The gas chamber stores a sample gas and receives the plurality of modulated wavelength components. The microphone detects pressure changes within the gas chamber to produce an acoustic signal, which can be used to analyze properties of the sample gas.03-29-2012

Patent applications in class INFRARED AND ULTRAVIOLET