Inventors list

Assignees list

Classification tree browser

Top 100 Inventors

Top 100 Assignees


FOR LIGHT TRANSMISSION OR ABSORPTION

Subclass of:

356 - Optics: measuring and testing

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
356436000 Of fluent material 298
356433000 By comparison 38
Entries
DocumentTitleDate
20130044322SEMICONDUCTOR LASER MOUNTING WITH INTACT DIFFUSION BARRIER LAYER - A first contact surface of a semiconductor laser chip can be formed to a target surface roughness selected to have a maximum peak to valley height that is substantially smaller than a barrier layer thickness. A barrier layer that includes a non-metallic, electrically-conducting compound and that has the barrier layer thickness can be applied to the first contact surface, and the semiconductor laser chip can be soldered to a carrier mounting along the first contact surface using a solder composition by heating the soldering composition to less than a threshold temperature at which dissolution of the barrier layer into the soldering composition occurs. Related systems, methods, articles of manufacture, and the like are also described.02-21-2013
20120200856SAMPLE ANALYSIS APPARATUS - A sample analysis apparatus to detect detection objects at various positions is provided. The sample analysis apparatus includes a disc including first and second detective regions. The first detective region is located at a first distance in a radial direction from the center of the disc and the second detective region is located at a second distance greater than the first distance. The apparatus further includes a light emitting element spaced apart from an upper or lower surface of the disc by a predetermined distance so as to face the first and second detective regions, and first and second light receiving elements positioned on the opposite side of the disc as that of the light emitting element while being respectively oriented to face the first and second detective regions. The light emitting element is configured to irradiate a uniform intensity of light onto the detective regions.08-09-2012
20080259337BIOLOGICAL OPTICAL MEASURING APPARATUS AND LIGHT DETECTION MODULE - A cerebral function measuring apparatus houses a light detector in a package that can be set on the head of the subject examinee with light detection elements, amplifiers, and high voltage power supplies sealed in the package. Each amplifier and each high voltage power supply are united into one and covered with a high polymer material with high dielectric strength, and further enclosed by a metallic shield so as to be insulated. The high voltage power supply consists of a very small coil and an integrated circuit to generate a voltage required to drive the light detection element in the package. A removable and safe module type light detector is thus realized.10-23-2008
20110194113THIN-FILM INSPECTION APPARATUS AND INSPECTION METHOD - An object is to reduce the effect of a film thickness variation on the substrate surface of a thin film and improve the measuring accuracy. Provided are a light source that radiates single-wavelength light to an inspection-target substrate (W), which is formed by forming a thin film on a glass substrate from the glass substrate side; a light receiving element that is disposed such that the light receiving axis intersects with the optical axis of illumination light emitted from the light source at a predetermined inclination angle and that receives diffused transmitted light that has been transmitted through the inspection-target substrate W; and a computer (08-11-2011
20100033722PHOTOACOUSTIC POINT SPECTROSCOPY - A system and method are disclosed for generating a photoacoustic spectrum in an open or closed environment with reduced noise. A source may emit a beam to a target substance coated on a detector that measures acoustic waves generated as a result of a light beam being absorbed by the target substance. By emitting a chopped/pulsed light beam to the target substance on the detector, it may be possible to determine the target's optical absorbance as the wavelength of light is changed. Rejection may decrease the intensity of the acoustic waves on the detector while absorption may increase the intensity. Accordingly, an identifying spectrum of the target may be made with the intensity variation of the detector as a function of illuminating wavelength.02-11-2010
20100045991METHOD AND DEVICE FOR MEASURING A PHOTOACOUSTIC SIGNAL WITH COMPUTER-ASSISTED EVALUATION - The application relates to a method for measuring the photoacoustic signal in a photoacoustic cell (02-25-2010
20100045989Method and device for monitoring the condition of a medium - The invention relates to a method for monitoring the condition of a medium in a channel, based on the transmission/emission of light, in which 02-25-2010
20100321695SENSOR, A TABLE AND LITHOGRAPHIC APPARATUS - A sensor for an immersion system is disclosed. The sensor comprises: a sensing device, a transparent layer and an opaque patterning layer. The sensing device is configured to sense a property of a beam of radiation. The transparent layer is configured to allow the passage of a beam of radiation therethrough. The transparent layer covers the sensing device. The opaque patterning layer is configured to impart a pattern to the beam of radiation. In the patterning layer is an opening in which is located an infilling material. The infilling material is transparent to the beam of radiation and has a similar refractive index to that of the transparent layer.12-23-2010
20080297799EVANESCENT WAVE MULTIMODE OPTICAL WAVEGUIDE AND SENSOR WITH HIGH MODE COUPLING - There is provided an evanescent wave multimode optical waveguide sensitive to a chemical species or to a physical parameter. The optical waveguide comprises a core and a cladding having a cladding refractive index lower than that of the core for guiding light to be propagated in the optical waveguide. The cladding defines with the core an optical waveguide providing mode coupling. A chemical indicator is provided in the cladding for causing a variation of the optical absorption of the cladding as a function of the chemical species or the physical parameter. The cladding is interrogated by the evanescent wave of the propagated light. The mode coupling causes unabsorbed light power to be redistributed among the multiple modes while light propagates along the optical waveguide.12-04-2008
20100027012PHOTOACOUSTIC SPECTROSCOPY SYSTEM - A system for providing photoacoustic spectroscopy. A light source having a quantum dot filter may provide a band of infrared light which is to be reflected by a lamellar grating to a photoacoustic chamber. The light may be modulated by the grating. The chamber may contain a sample of fluid for which spectral information is sought. A sensor may detect acoustic pressures in the chamber which indicate the spectral information. Signals from the sensor may be processed and displayed. Identification and concentration of certain substances in the fluid may be obtained.02-04-2010
20130027707TUNABLE INTERFERENCE FILTER, OPTICAL FILTER MODULE, AND PHOTOMETRIC ANALYZER - A filter includes a fixed substrate, a movable substrate opposed to the fixed substrate, a first reflection film provided on a surface of the fixed substrate facing the movable substrate, a second reflection film provided on the movable substrate and opposed to the first reflection film across a gap, a first electrode provided on the surface of the fixed substrate facing the movable substrate, a second electrode provided on the movable substrate and opposed to the first electrode, bonding parts provided on opposing surfaces of the fixed and movable substrates and bonding the fixed substrate to the movable substrate, and a groove part provided in at least one of the opposing surfaces, and the gap is in communication with an exterior of the filter via the groove part.01-31-2013
20090219535FRUIT AND VEGETABLE QUALITY CONTROL DEVICE - Device for inspecting fruit and vegetable products in general, and fruit in particular, by spectroscopic analysis of refracted light, comprising at least one runway (09-03-2009
20120182553METHOD OF ESTIMATING A DEGREE OF CONTAMINATION OF A FRONT SCREEN OF AN OPTICAL DETECTION APPARATUS AND OPTICAL DETECTION APPARATUS - A method for estimating a degree of contamination of a front screen of an optical detection apparatus is provided comprising the steps: Transmitting a plurality (p) of transmission radiation pulses into a detection zone; generating a reception signal for each transmission radiation pulse including a plurality (q) of sampled values, a sampled value indicating the intensity of the received back radiation of the transmission pulse after a predefined time interval from the transmission of the transmission radiation pulse; generating an averaged reception signal having a plurality (q) of sampled values from the plurality of reception signals, with those respective sampled values of the reception signals being added which were determined at mutually corresponding points in time to determine a sampled value of the averaged reception signal; generating at least one front screen contamination value by evaluating an amplitude value and/or a measured peak shape value of the averaged signal.07-19-2012
20090303485Electronic Component Mounting Apparatus and Printed Circuit Board Processing Apparatus - An electronic component mounting apparatus or a printed board processing apparatus is provided which can reliably detect positioning of a board in a position for having a component mounted thereon and further detect transferring of the board to a predetermined position, thereby contributing toward productivity improvement. To detect transferring of a board, light is transmitted from a light transmitting section to hit an end portion of the board. To detect positioning of the board, a light receiving section is optically blocked by the board.12-10-2009
20120218551VARIABLE PATH LENGTH PROBE - A probe having a probe head in which is formed an opening for receiving a sample to be analysed, the head comprising a pair of optical interfaces disposed at an opposing inner surface of the opening to delimit a path for optical radiation through the opening, wherein one of the pair of optical interfaces comprises a transparent element adapted to permit optical radiation in one or more wavelength regions of interest to travel between the probe head and the opening, the optical probe comprising a movable diaphragm in which one of the pair of optical interfaces is located for movement therewith and an actuator operably connected to the diaphragm to control its movement so as to vary the path length wherein the probe head comprises a hinge system cooperable with the actuator to move the optical interface in the movable diaphragm in an arc to vary the path length.08-30-2012
20120218550NANOHOLE ARRAY BIOSENSOR - A biosensor includes a light transmissive optical component (08-30-2012
20090237666METHODS AND DEVICES FOR MEASUREMENTS USING PUMP-PROBE SPECTROSCOPY IN HIGH-Q MICROCAVITIES - The use of optical microcavities, high-Q resonators and slow-light structures as tools for detecting molecules and probing conformations and measuring polarizability and anisotropy of molecules and molecular assemblies using a pump-probe approach is described. Resonances are excited simultaneously or sequentially with pump and probe beams coupled to the same microcavity, so that a pump beam wavelength can be chosen to interact with molecules adsorbed to the microcavity surface, whereas a probe beam wavelength can be chosen to non-invasively measure pump-induced perturbations. The induced perturbations are manifest due to changes of resonance conditions and measured from changes in transfer characteristics or from changes of the scattering spectra of a microcavity-waveguide system. The perturbations induced by the pump beam may be due to polarizability changes, changes in molecular conformation, breakage or formation of chemical bonds, triggering of excited states, and formation of new chemical species. Furthermore, heat may be generated due to absorption of the pump beam. Furthermore, the use resonant modes with different states of polarization allows for measurements of polarizability and its anisotropy in samples interacting with the optical device.09-24-2009
20090237665METHOD AND APPARATUS FOR DETERMINING A FOCAL POSITION OF AN IMAGING DEVICE ADAPTED TO IMAGE A BIOLOGIC SAMPLE - A method and apparatus for focusing a device for imaging a biologic sample is provided. A method aspect of the disclosure includes the steps of: 1) disposing lenslets within a field of a biologic sample, which lenslets have a height, and have a refractive index and which refractive index is different from that of the sample, wherein one or both of the imaging device and the sample are relatively locatable so a focal position of the imaging device can be moved along the height of the lenslets; 2) imaging at least a portion of the sample including a plurality of lenslets using transmittance at one or more predetermined wavelengths; 3) determining an average light transmittance intensity of the sample at the wavelengths; 4) determining an average light transmittance intensity of a region of each lenslet at the wavelengths; and 5) determining the focal position of the imaging device using the average light transmittance intensity of the sample and the average light transmittance intensity of the region of the lenslets.09-24-2009
20090231587DEVICE FOR IMAGING AN INTERIOR OF A TURBID MEDIUM - The invention relates to a device (09-17-2009
20090027675MOLECULAR DETECTION SYSTEMS AND METHODS - Methods and systems for detecting materials both energetic and non-energetic. An example system passes a sample of fluid through a filter/concentrator (particulate/molecular). Then desorption of the material in the filter/concentrator occurs at a predefined temperature. The desorbed material is analyzed at an optical resonator system to detect presence of a predefined material.01-29-2009
20120236310METHOD AND SYSTEM FOR OPTICAL DATA ACQUISITION AND TOMOGRAPHY IMAGING OF A TURBID MEDIUM OBJECT - A system and method for optical data acquisition of an illuminated turbid medium object, the system comprises a variable structured light detector and a controller. The light detector is adapted to retrieve light from a plurality of detection points of an output surface of the illuminated turbid medium object with a plurality of detection patterns. The controller is adapted to control the variable structured light detector for the variable structured light detector to use a detection pattern corresponding to an illumination pattern of the illuminated turbid medium object. The light detector is further adapted to optically measure a combination of retrieved light from the plurality of detection points as an optical measurement. The controller is further adapted to store an illumination pattern identifier indicative of the illumination pattern, a detection pattern identifier indicative of the detection pattern and the corresponding optical measurement.09-20-2012
20110043806INTRUSION WARNING SYSTEM - A system for detecting intrusion across a surface, comprising a plurality of light sources projecting an array of illuminating beams along different optical paths in the surface and a detector array system directed such that it detects along a plurality of fields of view in the surface, illumination reflected from the illuminating beams. A signal processing system detects changes along the array of fields of view, in the reflected illumination level detected by the detector system. An increase greater than a predefined level in the reflected illumination level from any field of view provides an indication of an intrusion across the surveilled surface along that field of view, at the crossing point of the direction of that field of view with the optical path whose illuminating beam generated the increase in reflected illumination from that field of view.02-24-2011
20090040523LIGHT EMITTING DIODE ILLUMINATION SYSTEM - In various embodiments of the invention, a unique construction for Light Emitting Diodes (LEDs) with at least one luminescent rod and extracting optical elements used to generate a variety of high brightness light sources with different emission spectra. In an embodiment of the invention, forced air cooling is used to cool the luminescent rod. In an embodiment of the invention, totally internal reflected light can be redirected outward and refocused. In another embodiment of the invention, light emitted by the luminescent rod is out-coupled for use in a variety of applications.02-12-2009
20130188188APPARATUS FOR MEASURING TRANSMITTANCE - An apparatus for measuring transmittance which can realize reliability for measurement of the transmittance of a piece of patterned glass by post dispersion of light. The apparatus includes a light source which is disposed in front of an object that is to be measured, and directs light into the object. An integrating sphere is disposed in the rear of the light source and integrating light incident thereinto. The object is mounted on the front portion of the integrating sphere. A light dispersing part is disposed in the rear of the integrating sphere, and disperses light that has been integrated by and then emitted from the integrating sphere. An optical receiver is disposed adjacent to the light dispersing part, and receives light that has been dispersed by the light dispersing part.07-25-2013
20080259338Carbonate Scale Detector - An apparatus and method for detecting carbonate scale. An energy emitting device transmits energy through one optical window, through a fluid stream, and out through a second optical window where the energy is detected by an energy receiving device. As scale, such as that due to carbonate present in the fluid, accumulates on the wetted surface of the optical windows, the transmission of the energy through the optical windows is obscured. The optical windows may optionally be coated and electrically charged to promote the formation of carbonate scale on the wetted surface of the window. The optical windows can be cleaned by reversing their polarity. By correlating the rate of energy intensity reduction to carbonate scale formation, the concentration of carbonate in the fluid stream can be determined. The carbonate detector can be used to alarm, shutdown, or control operation of equipment that may be adversely affected by the presence of carbonate in the fluid stream. Alternatively the present invention can detect scale formation on an electrode or other electrolytic cell component by analyzing light reflected from that component.10-23-2008
20100171956Alignment Free Single-Ended Optical Probe and Methods for Spectroscopic Measurements in a Gas Turbine Engine - A method of measuring the combustion property in a measurement volume within a casing defined in part by a casing wall. The method includes providing a port in the chamber wall. Also provided is a fiber assembly comprising a single mode transmit core surrounded by a multimode receive core means. The fiber assembly is operatively coupled to the port to provide optical communication between the fiber assembly and measurement volume. A detection beam capable of detecting a select combustion property is transmitted from the single mode fiber and reflected off a reflection surface within the chamber, the reflection surface being configured to reflect and optically couple at least a portion of the detection beam to the multimode receive core means. The detection beam optically coupled to the multimode receive core means is then measured.07-08-2010
20110299083SAMPLE ANALYZING APPARATUS - Provided is a sample analyzing apparatus by which highly accurate measurement results can be obtained. The sample analyzing apparatus is provided with: a sample cell part constituting a plurality of cell spaces; light source parts that irradiate light in wavelength regions different from each other on the cell spaces; a plurality of collimator mirrors that are arranged to correspond to the cell spaces respectively and that collimate the transmitted light that has passed through the cell spaces; a diffraction grating that disperses the reflection light collimated by the collimator mirrors; a light collecting mirror that collects the light dispersed by means of the diffraction grating; and a light detector that detects the light collected by the light collecting mirror.12-08-2011
20120099108METHOD AND APPARATUS FOR DETERMINING A FOCAL POSITION OF AN IMAGING DEVICE ADAPTED TO IMAGE A BIOLOGIC SAMPLE - A method and apparatus for focusing a device for imaging a biologic sample is provided. A method aspect includes the steps of: disposing lenslets within a biologic sample, which lenslets have a height and a refractive index, which refractive index is different from that of the sample, wherein one or both of the imaging device and the sample are relatively locatable so a focal position of the imaging device can be moved along the height of the lenslets; imaging a portion of the sample including lenslets using transmittance at one or more wavelengths; determining an average light transmittance intensity of the sample at the wavelengths; determining an average light transmittance intensity of a region of each lenslet at the wavelengths; and determining the focal position of the imaging device using the average light transmittance intensity of the sample and the average light transmittance intensity of the region of the lenslets.04-26-2012
20110285997Assembly And Method for Evaluating Effectiveness of Anti-Fog Coatings of Eyewear Lenses - An assembly for testing the effectiveness of anti-fog coatings on eyewear lenses, the assembly comprising a chamber for receiving and retaining the eyewear, means for controlling the temperature and relative humidity in the chamber, means for providing warm moist air to the chamber, and a hazemeter for detecting and recording haze values exhibited by the lenses; and a method for evaluating effectiveness of anti-fog coatings on eyewear lenses, utilizing the assembly.11-24-2011
20110292392ABSORPTION OPTICAL PROBE PROVIDED WITH MONITORING OF THE EMISSION SOURCE - The invention relates to an optical probe for measuring absorption in order to produce an absorption value Am, which probe comprises an analysis cell CA, said analysis cell including an emission module LED, F12-01-2011
20090231586INSPECTION CHIP PRODUCING METHOD AND SPECIMEN DETECTING METHOD - A method of producing an inspection chip includes a microstructure producing step of producing a microstructure where metallic portions having dimensions permitting excitation of surface plasmons are formed and distributed on one surface of a substrate, a specimen attaching step of attaching a specimen to the surfaces of the metallic portions of the microstructure, and a metallic particle attaching step of attaching metallic particles having dimensions permitting excitation of surface plasmons to the metallic portions and the specimen, wherein the specimen is attached to the metallic portions to which no substance capable of specifically binding to the specimen is secured in the specimen attaching step, and/or the metallic particles to which no substance capable of specifically binding to the specimen is secured are attached to the specimen in the metallic particle attaching step.09-17-2009
20090002709Method for identifying a transparent object with the aid of its absorption spectrum - The present invention relates to a method for identifying transparent objects, for example measurement cuvettes, with the aid of their absorption spectrum and therefore makes it possible to protect articles against forgery or imitation.01-01-2009
20090002708METHODS AND APPARATUS FOR SPECTROSCOPIC IMAGING OF MATERIALS IN AN ARRAY - A system for monitoring infrared absorption of each of a plurality of materials contained in an array has an infrared transparent substrate for the array of materials. An infrared radiation source irradiates the materials in the array with infrared radiation. An infrared detection system monitors material absorption of the infrared radiation by the materials. A method of monitoring the infrared absorption spectrum of a library of materials includes synthesizing an array of material on a substrate. The materials are irradiated with infrared radiation and the absorption of the infrared radiation by the materials is monitored for each material.01-01-2009
20110216321PROJECTION DISPLAY APPARATUS HAVING PLURAL LIGHT SOURCES - A projection display apparatus 09-08-2011
20090141278SYSTEMS AND METHODS FOR DETERMING WHETHER A BIOLOGICAL SPECIMEN CARRIER IS PROPERLY ORIENTED - Systems and methods for determining whether a biological specimen carrier, such as a specimen slide, is arranged in its proper orientation. An optically absorptive element is associated with a surface of the biological specimen carrier. Light emitted from a light source is incident on a surface of the carrier. A slide is properly oriented when the incident light is substantially absorbed by the absorptive element. One or more sensors are positioned to detect light that is not absorbed by the absorptive element. An output of a sensor indicates whether the biological specimen slide is properly oriented and may drive indicator directly or through a controller or other system component to indicate whether the slide is properly oriented.06-04-2009
20090296093Transmitted-light-intensity measuring device, medium identifying device, medium conveying device, and image forming apparatus - A device for measuring intensity of a transmitted light, includes a first measuring unit that measures a first intensity of a light transmitted through a medium on a conveying path in its thickness direction and outputs a first measured value; a second measuring unit that is arranged adjacent to the first measuring unit, measures a second intensity of the light transmitted through the medium in the thickness direction, and outputs a second measured value; and an operating unit that obtains a true measured value from the first measured value and the second measured value.12-03-2009
20110149285OPTICAL RESONATOR AND OPTICAL SENSING SYSTEM COMPRISING THE SAME - An embodiment of the invention relates to an optical resonator. The optical resonator includes an input optical waveguide and a closed loop coupled to the input optical waveguide. The closed loop is adapted to receive light from the input optical waveguide, wherein the closed loop includes at least one hole formed within a portion of the closed loop.06-23-2011
20100085571Optical Path Length Sensor and Method for Optimal Absorbance Measurements - An apparatus is described in which an optical fiber is mounted within a fiber optic holder which includes the non-rotating shaft of a linear actuator. The fiber holder may be held captive in order to restrain the fiber holder and, consequently, the fiber mounted therein, from rotating during operation of the linear actuator, thereby resulting in linear travel with minimal rotational effects and minimal change in optical alignment of the fiber during travel. In addition, an optical path length sensor in conjunction with an optimized absorbance method of operation is utilized herein to provide micron precision of the displacement between respective receiving and transmission fibers so as to enable precise absorbance measurements from about 0.005 up to about 2.0 Absorbance Units for any given path length.04-08-2010
20090046290Methods and devices for evaluating print quality - A method for evaluating print quality comprising providing a first paper; providing a second paper; providing a reference print sample; providing a test print sample; obtaining pre-rub densities of the first paper and the second paper or the reference print sample and the test print sample; providing a mechanical rub tester; rubbing the reference print sample with a first paper using the mechanical rub tester; obtaining post-rub density of the rubbed first paper or the rubbed reference print sample; rubbing the test print sample with a second paper using the mechanical rub tester; obtaining post-rub density of the rubbed second paper or the rubbed test print sample; and comparing the pre-rub and post-rub densities of the first and second papers or the rubbed reference print sample and the rubbed test print sample.02-19-2009
20100284010Respirator end-of-service life probe - An end-of-service life indicator for a sorbent filter includes a tube containing a noble metal nanoparticle film on an optically transparent substrate, the substrate being perpendicular to the axis of the tube. An opening in the tube adjacent to the film allows chemical vapor to accumulate in the tube and be absorbed by the film. A light source located at one end of the tube and a light detector at the other end determines the amount of light absorbed by the nanoparticle film due to exposure to chemical vapor. A signal from the light detector is applied to an electronic processor that determines attenuation of light by the film, and the processor is connected to an indicator to provide an indication of the exposure of the film to the vapor.11-11-2010
20110141474MEASUREMENT METHOD - A method for quantifying the soil dispersion capacity of a cleaning product or component thereof where the method comprises the following steps: 06-16-2011
20110007317METHOD AND APPARATUS FOR DETECTING SMALL BIOMOLECULES - An object of the present invention is to detect a small biomolecule in a sample using simple and inexpensive equipment. To achieve this, the small biomolecule in a sample S is detected optically. Specifically, the sample S containing an aptamer capable of interacting with the small biomolecule is irradiated with an excitation light Le and irradiated with a measurement light L01-13-2011
20100141950TUNABLE FILTER, LIGHT SOURCE APPARATUS, AND SPECTRAL DISTRIBUTION MEASURING APPARATUS - Provided is a tunable filter including: a polarization splitter that splits input light into two linearly polarized light rays of mutually orthogonal vibration directions; a wavelength dispersion spectroscopic element that splits the two linearly polarized light rays split by the polarization splitter, into two spectral images having spatial spread in one direction, the two spectral images corresponding to the two linearly polarized light rays; and a reflective spatial modulator device that modulates and reflects linearly polarized light in each wavelength region for the two spectral images independently from each other, where modulated light reflected at the reflective spatial modulator device reenters the wavelength dispersion spectroscopic element and the polarization splitter, thereby splitting and outputting the modulated light, as output light in a wavelength region modulated by the reflective spatial modulator device and output light in a wavelength region not modulated, and input light and reentered light to the polarization splitter and input light and reentered light to the wavelength dispersion spectroscopic element are parallel light fluxes.06-10-2010
20090190135CELL CULTURE HYDROGEL WITH pH INDICATOR - The invention provides devices, compositions and methods for maintaining conditions in a cell culture and for measurement of conditions in the cell culture. In particular, the invention provides hydrogel materials, apparatus and methods for several non-invasive techniques of maintaining glucose and pH levels in cell cultures at near-optimal levels and the non-invasive measurement of pH levels in cell cultures.07-30-2009
20080316488Measuring Cerebral Oxygen Saturation - A device includes source and detector sensors. In a specific implementation, the device has two near detectors, two far detectors, and two sources. The two near detectors are arranged closer to the two sources than the two far detectors. A light-diffusing layer covers the two near detectors. The device may be part of a medical device that is used to monitor or measure oxygen saturation levels in a tissue. In a specific implementation, light is transmitted into the tissue and received by the detectors. An attenuation coefficient is first calculated for a shallow layer of tissue. The attenuation coefficient is then used to calculate an attenuation coefficient for a deep layer of tissue.12-25-2008
20120069339Inspection device and producing method of wired circuit board - An inspection device includes a light emitting unit emitting incident light that enters the insulating cover layer and a light receiving unit receiving reflected light that is reflected from the incident light on the surface of the insulating cover layer. The light emitting unit includes a first light emitting portion in a ring state that emits the incident light so that the angle thereof with respect to the surface of the insulating base layer is in the range of 25° or less and a second light emitting portion in a ring state that emits the incident light so that the angle thereof with respect to the surface of the insulating base layer is in the range of 35 to 65°.03-22-2012
20120069338Graphene Optical Sensor - A method of using an optical sensor, the optical sensor comprising a sensing surface comprising graphene layer, the sensing surface located on a substrate, includes determining a first optical absorption spectrum for the graphene layer by a spectrophotometer; adding an analyte, the analyte selected to cause a shift in the first optical absorption spectrum, to the graphene layer; determining a second optical absorption spectrum for the modified graphene layer by a spectrophotometer; determining a shift between the first optical absorption spectrum and the second optical absorption spectrum; and determining a makeup of the analyte based on the determined shift.03-22-2012
20090015838Structure having nanoapertures - A structure includes a film having a plurality of nanoapertures. The nanoapertures are configured to allow the transmission of a predetermined subwavelength of light through the film via the plurality of nanoapertures. The structure also includes a semiconductor layer in connection with the film to facilitate the detection of the predetermined subwavelength of light transmitted through the film.01-15-2009
20090051919METHOD AND APPARATUS FOR TESTING A TEST OBJECT - A method of testing a test object, comprising the steps of arranging the test object at a deformable contact element of a holding device, wherein the contact element is at least partially deformed so that at least a partial area of the test object is in gap-free contact with at least a partial area of the contact element, and wherein for at least two contact points of the contact element, which are in contact with the partial area of the test object, upon through-radiation by means of electromagnetic radiation that is parallel to a predefined through-radiation direction, an optical path length of the electromagnetic radiation through the holding device and the test object is substantially identical; having the electromagnetic radiation radiate through the holding device and the test object in parallel to the predefined through-radiation direction detecting the electromagnetic radiation after through-radiation; and evaluating the detected electromagnetic radiation.02-26-2009
20090231585STANDARD DEVICE FOR ORIGIN OF LIGHT ABSORBANCE AND METHOD OF USING THE SAME - A device for origin of light absorbance used in an optical measuring instrument for measuring light absorption characteristics of a light diffusion sample. The device includes a light transmission terminal configured to irradiate a measurement light onto the light diffusion sample at a point of incidence of the light diffusion sample and a light diffusion plate through the interior of which the measurement light can be diffused and transmitted. A light receiving terminal is configured to receive the measurement light from the light diffusion sample for measurement at a point of detection of the light diffusion sample that is separate from the point of incidence. Optionally, the device can include a cleaning unit that cleans the light transmission terminal and light receiving terminal.09-17-2009
20090174884Resonant Optothermoacoustic Detection of Optical Absorption - A device comprising an acoustic detector, one or more thermal sensing elements coupled to the acoustic detector, and a light source. A method comprising directing a beam of light at a wavelength at or near one or more thermal sensing elements, wherein the thermal sensing elements are coupled to an acoustic detector, determining a resonance frequency of the acoustic detector, wherein the acoustic detector is coupled to one or more of the thermal sensing elements, and measuring the response of the acoustic detector to detect optical radiation absorption proximate to or at the surface of one or more thermal sensing elements.07-09-2009
20090015839Living body optical measurement system - To make the peak value of the driving current of light source smaller than the conventional one and to make the peak value of the light receiving level of light-sensitive elements smaller than the conventional one in order to save power consumption of the device and to improve the precision of measurement, codes of which the bits of the Hadamard codes are shifted by the same bit for each code series having the same bit cycle, or codes of which the bits of a PN code are shifted are used as different codes.01-15-2009
20090103097Window cleanliness detection system - A detector comprises a housing (04-23-2009
20090103096METHOD FOR DETERMINING OPTICAL PROPERTIES OF TURBID MEDIA - There is provided a method for improving contrast and resolution of an optical image of an object obtained by time-resolved techniques such as Time Domain (TD) and Frequency Domain (FD). The method comprises obtaining a Temporal Point Spread Function (TPSF), and determining optical properties of volumes of interest (VOI), each volume being defined by an ensemble of equiprobable effective photon paths corresponding to a time point or time gate of the TPSF.04-23-2009
20100177316Integrated Embedded Processor Based Laser Spectroscopic Sensor - A novel low-power and compact laser spectroscopic sensor is described herein. Embodiments of the disclosed sensor utilize state-of-the-art microprocessors and digital processing techniques to reduce power consumption and integrate functions into a small device. In particular, novel software methods are disclosed which allow the use of low-power microprocessors which draw no more than about 0.02 W of power. Such low-power enables long battery life and allows embodiments of the sensor to be used in portable applications. In addition, the system architecture and methods described in this disclosure allow a single integrated embedded processor to control all the subsystems necessary for a laser spectroscopic sensor further reducing sensor size and power consumption. In addition, a power efficient method of calibrating a photoacoustic laser spectroscopic sensor is disclosed.07-15-2010
20100188660SPATIAL FREQUENCY OPTICAL MEASUREMENT INSTRUMENT AND METHOD - A spatial frequency optical measurement instrument (07-29-2010
20130215425WAVEGUIDE-BASED DETECTION SYSTEM WITH SCANNING LIGHT SOURCE - The invention provides methods and devices for generating optical pulses in one or more waveguides using a spatially scanning light source. A detection system, methods of use thereof and kits for detecting a biologically active analyte molecule are also provided. The system includes a scanning light source, a substrate comprising a plurality of waveguides and a plurality of optical sensing sites in optical communication with one or more waveguide of the substrate, a detector that is coupled to and in optical communication with the substrate, and means for spatially translating a light beam emitted from said scanning light source such that the light beam is coupled to and in optical communication with the waveguides of the substrate at some point along its scanning path. The use of a scanning light sources allows the coupling of light into the waveguides of the substrate in a simple and cost-effective manner.08-22-2013
20100214567Nanoparticle Based Identification - This patent application asserts application of a spot-mixture of nanoparticles in barcoding of information for security and protection. ID encoding and subsequent readout is made using the distinctive spectral features of the spot-mixture of nanoparticles defined as a tiny, invisible spots made up of absorbing and fluorescent nanoparticles whose spectral properties will be used for security ID signatures.08-26-2010
20120242992GRADIENT INDEX (GRIN)-BASED ABSORPTION SPECTROSCOPY APPARATUS, METHOD, AND APPLICATIONS - Apparatus and method to measure optical absorption spectra with spatial resolution on the micron scale. An exemplary setup combines a continuous white light excitation beam in transmission geometry with a GRIN-based detection path in place of a typical confocal microscope. The apparatus and method enables the investigation of spatial variations in the optical density of small samples on the micron scale and the study of biological assemblies at the single cell level, leading to applications in optical diagnostics, microfluidics, cytology, and other areas.09-27-2012
20100208267System and method for detecting a target substance - A system and a method for detecting the existence of a target substance, the system includes a laser with a broad spectral output and a detector for detecting an absorption spectrum of a laser beam from the laser. The method includes emitting a laser beam into the atmosphere using a laser light with a broad spectral output; measuring the absorption spectrum of said laser beam; comparing the absorption spectrum to known absorption spectrums for target substances using a detector; and detecting the existence of a target substance.08-19-2010
20090323067System And Method For Coating And Shielding Electronic Sensor Components - Embodiments described herein may include devices and methods of manufacturing sensors for monitoring physiological parameters of a patient. Specifically, embodiments disclose the use of conductive and nonconductive coating materials to increase comfort of sensor and increase accuracy of the parameters measured. The sensor may include a flexible circuit and an optical device with an active face. A generally opaque, nonconductive coating may be disposed over the optical device, except for the active face, which allows for passage of light to the active face. The nonconductive coating may comprise a medical grade silicone of a specified thickness. A second conductive layer may be disposed on a portion of the conductive layer, to provide a Faraday shield for the optical device.12-31-2009
20100220327Measurement Device for the Distribution of Chemical Concentration - A material distribution measuring device (09-02-2010
20100296093APPARATUS AND METHODS USING HOLLOW-CORE FIBER TAPERS - An optical device and methods of using an optical device are provided. The optical device includes a hollow-core fiber including a first portion and a second portion. The first portion includes a hollow core having a first diameter. The second portion includes a hollow core having a second diameter smaller than the first diameter. The difference between the first diameter and the second diameter is less than 10% of the first diameter.11-25-2010
20100315642SPECTROSCOPIC DETECTION SYSTEM AND METHOD - A system and method for spectroscopic detection of a loss in a resonator cavity. The system comprises: a tunable laser source for generating a laser beam; a frequency locking system for either locking the frequency of the laser beam to a resonance of the resonator cavity or locking the length of the cavity to the frequency of the laser beam; a first modulation element for modulating the laser beam at a first modulation frequency to generate a modulated laser beam; an input coupler adapted for directing the modulated laser beam into the resonator cavity; a first directing element for directing a first portion of light reflected from the input coupler to a first photodetector to generate a first detected signal; and a first demodulator capable of demodulating the first modulation signal from the first detected signal to generate a first error signal which is a function of the loss in the resonator cavity.12-16-2010
20110043805Automated Soybean Phenotyping for Iron Deficiency Chlorosis - A system for evaluating the susceptibility of a soybean plant to iron deficiency chlorosis is described. Soybean plants are planted in range and rows multiple micro-plots and a cart is used to pass a radiometric sensor over the micro-plots. The cart may have a sensor housing that is divided into multiple partitions with a radiometric sensor assembly positioned within each partition. Each sensor assembly generates a data signal and a computer receives and stores the data signals. The field cart is positioned above the range. The number of partitions corresponds to the number of rows in the range and each sensor assembly is positioned above a single row.02-24-2011
20110116093SENSOR CHIP FOR BIOLOGICAL AND CHEMICAL SENSING - A sensor chip comprising: 05-19-2011
20100321696OPTICAL DEVICES AND METHODS FOR MEASURING SAMPLES - Optical devices and methods for measuring samples while minimizing stray light are described. Such methods and devices are applicable to multiple fluid chambers with multiple sources as an integrated optical element. Light sources can be embedded onto a chip or microarray with multiple chambers, or can be part of an instrument arrangement.12-23-2010
20090033940Multi-Level Light Curtain With Structure Light Sources and Imaging Sensors - Systems and methods for detecting an obstruction in a detector surface fields are provided. In one respect, a set of lines may be projected over substantially a half of the detection area and may subsequently imaged and evaluated. Other embodiments may include a second set of lines that may be projected over substantially a second half of the detection area and may subsequently imaged and evaluated. The images may be evaluated to determine if there are breaks (e.g., an obstruction) in the projected set of lines. Based on the evaluation, the detector may provide dynamic feedback signals to a processor, which may adjust the position of the detector or provide a signal indicating an obstruction.02-05-2009
20100027013METHOD AND APPARATUS FOR THE ANALYSIS OF MATERIALS - An apparatus and method are presented for the analysis of materials. The apparatus includes two or more similar analyzers, with the output of the analyzers combined to provide improved measurements. The apparatus may be, for example, a differential photometric analyzer, such as the AETHALOMETER®. The apparatus and method includes providing flows to the analyzers such that the rate of accumulation per filter area differs for the two or more analyzers. The output of the apparatus or method may be a concentration, such as the concentration of black carbon particulates. Additionally, the output may be an optical measure of particulates that is useful for characterizing the source or history of the particulates.02-04-2010
20100045990OSCILLATOR ELEMENT FOR PHOTO ACOUSTIC DETECTOR - An oscillator element (02-25-2010
20100053618Photoacoustic Apparatus, and Probe for Receiving Photoacoustic Waves - A photoacoustic apparatus obtains information on a specimen by receiving photoacoustic waves which are generated from the specimen resulting from light irradiated to the specimen. The apparatus includes a light source for irradiating light to the specimen, an acoustic wave receiver for receiving the photoacoustic waves, and a light reflection member for causing the light, which is radiated out of the specimen by optical diffusion thereof after having entered an interior of the specimen from the light source, to reenter the interior of the specimen, wherein the light reflection member allows elastic waves to pass therethrough. As a result, a photoacoustic apparatus and a probe are provided which can confine scattered light from the specimen into the specimen, and which can reliably prevent photoacoustic waves from being generated from a receiving element region of the probe by the scattered light.03-04-2010
20100067011AMBIENT LIGHT REDUCTION FOR OPTICAL TOMOGRAPHY - The invention relates to an adaptation medium (03-18-2010
20110026030CARRIER FOR OPTICAL DETECTION IN SMALL SAMPLE VOLUMES - The invention relates to a carrier (02-03-2011
20100302544WAVEGUIDE-BASED DETECTION SYSTEM WITH SCANNING LIGHT SOURCE - The invention provides methods and devices for generating optical pulses in one or more waveguides using a spatially scanning light source. A detection system, methods of use thereof and kits for detecting a biologically active analyte molecule are also provided. The system includes a scanning light source, a substrate comprising a plurality of waveguides and a plurality of optical sensing sites in optical communication with one or more waveguide of the substrate, a detector that is coupled to and in optical communication with the substrate, and means for spatially translating a light beam emitted from said scanning light source such that the light beam is coupled to and in optical communication with the waveguides of the substrate at some point along its scanning path. The use of a scanning light sources allows the coupling of light into the waveguides of the substrate in a simple and cost-effective manner.12-02-2010
20090128817Method of analyzing a presence in a space - A method of analyzing a presence in a space (05-21-2009
20120033218AIR-DRIVEN SHUTTER DEVICE AND OPTICAL ANALYZER - An air-driven shutter device is used in an optical analyzer. The optical analyzer includes a measurement field to which a sample is supplied, a light-emitting unit measurement field for emitting measuring light to the sample, a light-receptive unit for receiving the measuring light that has passed through the sample, and a purge air supplying unit for supplying purge air. The air-driven shutter device includes a shutter and a shutter opening and closing mechanism. The shutter is disposed between the light-emitting unit and/or the light-receptive unit and the measurement field. The shutter opening and closing mechanism keeps the shutter open with pressure of the gas supplied from the purge air supplying unit, and closes the shutter when the pressure of the gas supplied from the purge air supplying unit becomes lower than a predetermined level.02-09-2012
20090185186SYSTEMS AND METHODS FOR IMPROVING MEASUREMENT OF LIGHT TRANSMITTANCE THROUGH INK DEPOSITED ON A SUBSTRATE - Systems, methods and apparatus for manufacturing color filters for flat panel displays are provided that include an inkjet printing system integrated with a light transmittance measurement system. The inkjet printing system includes a stage for supporting and moving a substrate past inkjet print heads adapted to deposit ink in pixel wells on the substrate. The light transmittance measurement system includes a sensor and a light source disposed on opposite sides of the substrate and adapted to determine the thickness of the ink deposited on the substrate. The light source is adapted to move with the sensor to allow different pixel wells containing deposited ink to be measured, and the stage includes at least one optical path to allow light from the light source to pass through the deposited ink to the sensor.07-23-2009
20090190136DETECTING AND/OR MEASURING A SUBSTANCE BASED ON A RESONANCE SHIFT OF PHOTONS ORBITING WITHIN A MICROSPHERE - Detecting and/or measuring a substance based on a resonance shift of photons orbiting within a microsphere of a sensor. Since the resonance of the microsphere has a large quality factor, the sensor is extremely sensitive. The sensor includes the microsphere coupled with at least one optical fiber. The surface of the microsphere includes receptors complementary to the substance. The at least one optical fiber can be provided with at least one additional microsphere having a surface free of the receptors. Resonance shifts observed in such an additional microsphere(s) can be attributed to factors unrelated to the presence of the substance. The resonance shift observed in the microsphere with the receptors can be compensated based on the resonance shift of the additional microsphere(s) to remove the influence of these other factors.07-30-2009
20110051139METHOD AND DEVICE FOR ANALYTE MEASUREMENT - A device for non-invasively measuring concentration of one or more analytes in a living subject or a biological sample, wherein the device includes several light sources, a system for controlling the timing and intensity of the light source outputs, a system for passing the light through the subject or sample, a system for measuring the amount of light transmitted, and a system for relating the measurement to the concentration of the analyte in question. The light sources are narrow band sources at different wavelengths, and are capable of being rapidly switched between two levels of intensity. The actual number of light sources required and the wavelengths of the sources are dependent upon the specific analyte being measured.03-03-2011
20100110436APPARATUS FOR MONITORING THE CURE OF A BONE CEMENT MATERIAL - Apparatus for monitoring the cure of a bone cement material provided in a container includes a memory device in which data is stored relating to the time taken for the cement material of the type in the container to cure according to the temperature of the material. A data processor is used to calculate the time taken for the cement material to cure, based on data relating to the temperature of the cement material and data in the memory device relating to extent of cure. An output device is provided for data from the data processor relating to the extent of cure of the cement material in the container.05-06-2010
20080218755SEMICONDUCTOR UV ABSORPTIVE PHOTOMETRIC CELLS - Biomolecules in solid or liquid form are targeted with a UV beam of about 260 nm that is attenuated by absorption in the biomolecules. The attenuated light passes through a UV transmissive window and partly discharges an underlying floating gate EPROM device. The incremental partial discharge of the floating gate device alters the threshold voltage of the device and is read by an analog output amplifier. Variation in threshold voltage of the device is measured with respect to the extent of optical absorption by the biomolecules resulting in photometric data. A biomolecule target array can be fabricated as an X-Y array in a chip or wafer over an array of correspondingly spaced EPROM devices with control devices forming cells with each cell separately readable.09-11-2008
20100195104MICROSCOPE AND AN OBSERVATION METHOD IN THE MICROSCOPE - In a cavity mode of a cavity, a diameter of a mode waist is decreased so that the diameter is similar to a wavelength of an electromagnetic wave resonant with the cavity mode, when a material is located in the cavity. The material includes a physical system having two quantum states. A relative position between the material and the mode waist is scanned along three-directions unparallel mutually. A laser coupled with the cavity mode is input to the cavity. An intensity of at least one of a reflected light and a transmitted light of the laser from the cavity is measured.08-05-2010
20110149284OPTICAL DENSITY DETERMINATION METHODS AND APPARATUS - At least some aspects of the disclosure are directed towards densitometers and methods of determining optical density of printed images upon media. According to one example, an optical density determination apparatus includes a first light source configured to emit a first light beam in a first direction towards a substrate; a second light source configured to emit a second light beam in a second direction towards the substrate, the second direction being different than the first direction; a first sensor configured to sense light of the first light beam reflected from the substrate; a second sensor configured to sense light of the second light beam reflected from the substrate; and wherein the first and second sensors are configured to provide signals indicative of the light sensed by the first and second sensors and which are useable to determine optical density of the substrate.06-23-2011
20100033723PHOTOACOUSTIC MICROCANTILEVERS - A system generates a photoacoustic spectrum in an open or closed environment with reduced noise. A source focuses a beam on a target substance disposed on a base. The base supports a cantilever that measures acoustic waves generated as light is absorbed by the target substance. By focusing a chopped/pulsed light beam on the target substance, a range of optical absorbance may be measured as the wavelength of light changes. An identifying spectrum of the target may detected by monitoring the vibration intensity variation of the cantilever as a function of illuminating wavelength or color.02-11-2010
20100027011Process for Evaluating the Degree of Phenolic Ripeness of a Fruit and Relevant Device - The invention concerns a process for evaluating the degree of phenolic ripeness of a fruit, advantageously but not exclusively grapes, that includes the measurement of the intensity of an electromagnetic wave that has passed through a portion of a skin of the fruit and an operation for correlating the intensity with a specific classification of percentages of polyphenolic substances present in the fruit.02-04-2010
20120038924OPTICAL DETECTOR SUITABLE FOR USE IN LIGHT CURTAINS - A planar detector for use in light curtains, which generates electric signals as a function of absorbed light and is provided with a plurality of tapping points for the generated signals. The magnitude of the signals at the respective tapping points is dependent on their distance to the partial surfaces where the light is absorbed. As a function of the magnitude ratios between the signals at several tapping points, the distance ratios of the respective tapping points to those partial surfaces, where the light is absorbed, can be calculated. The detector is configured as a flexible layered structure made of organic material. The tapping points are disposed at a distance from the edges of the layered structure. Electric connection lines to the tapping points are connected along their longitudinal extension to the layered structure of the detector.02-16-2012
20130010297TESTING METHOD, DEVICE AND SYSTEM FOR SHUTTER GLASSES - A testing system including shutter glasses and a testing device is disclosed. The shutter glasses include a left-eye panel and a right-eye panel. The shutter glasses generate an output signal according to a wireless signal. The testing device provides a trigger signal to the shutter glasses to control turn-on times of the left-eye panel and the right-eye panel. When a light passes through the turned-on panel, a penetrating light is generated. The wireless signal is provided by the testing device. The testing device determines whether the shutter glasses are normal according to the output signal and the penetrating light.01-10-2013
20120154812CMOS MOEMS SENSOR DEVICE - The present invention relates to a sensor device. More particularly, the invention relates to a CMOS-based micro-optical-electromechanical-sensor (MOEMS) device with silicon light emitting devices, silicon waveguides and silicon detectors being fabricated using current Complementary Metal Oxide Semiconductor (CMOS) technology or Silicon on Insulator (SOI) technology. According to the invention there is provided a sensor comprising: a Silicon-based light emitting structure; an integrated electro-optical mechanical interface structure that is capable to sense mechanical deflections; an integrated electronic driving and processing circuitry so as to detect physical parameters such as vibration, motion, rotation, acceleration.06-21-2012
20120154810Optical Device for Detection of Agent - An agent sensing system may comprise an emitter optical resonator, a functionalized optical resonator, and a reference optical resonator. The emitter optical resonator may be configured to emit light at one or more system peak wavelengths. The functionalized optical resonator may be optically coupled to the emitter optical resonator and configured to propagate the emitted light in the absence of a particular agent, and filter the emitted light in the presence of the particular agent. The reference optical resonator may be optically coupled to at least one of the emitter optical resonator and the functionalized optical resonator such that an intensity of light propagated by the reference optical resonator is based at least on whether light emitted by the emitter optical resonator is filtered or propagated by the functionalized optical resonator.06-21-2012
20120154811COATING COMPOSITIONS COMPRISING NON-IONIC SURFACTANT EXHIBITING REDUCED FINGERPRINT VISIBILITY - Presently described are coating compositions comprising a polymerizable resin composition and a non-ionic unpolymerizable surfactant. In some embodiments, the coating comprises greater than 10 wt-% of non-ionic unpolymerizable surfactant. In other embodiments, the coating composition comprises an an additive comprising a silicone group or a fluorinated group and a hydrophobic group. Also described are articles comprising the cured coating compositions. In one embodiment, an article is described comprising a cured coating wherein the cured coating exhibits a property of an initially visible simulated fingerprint reducing in visibility in 1-20 minutes. Also described is a method of determining the fingerprint visibility of a coating composition and a polyacylate composition useful as an additive. In another embodiment a coated surface is described comprising a polymeric organic material comprising a plurality of pores wherein a portion of the pores are interconnected and comprise a lipophilic liquid.06-21-2012
20120162650Self-Aligning Light Source and Detector Assembly - Self-aligning light source and detector assembly having a sensor support mounted in a predetermined, fixed position, a light source holder mounted in a predetermined, fixed position relative to the sensor support, a sensor mounted in a fixed position on the sensor support, and a lamp assembly removably mounted to the light source holder in a predetermined position defined by mating surfaces which engage each other and seat the lamp assembly in the predetermined position whenever the lamp assembly is installed in the holder.06-28-2012
20100290048QUANTITATIVE DUAL-DYE PHOTOMETRIC METHOD FOR DETERMINING DILUTION IMPACT - The invention provides ways to determine the impact of diluting a solution wherein the diluting may be carried out for any of a variety of purposes. In one embodiment, the method enables accurate volume dispensation calculations independent of meniscus shape. In another embodiment, the method enables accurate determination of plate washing efficiency. In yet another embodiment, the method enables the accurate determination of dilution ratio over a plurality of dilution steps. The methods described may be carried out using one or more systems arranged to perform the steps. A kit of the invention includes instructions for carrying out the steps of the methods and, optionally, one or more solutions suitable for conducting photometric measurements.11-18-2010
20120133941Photoacoustic Apparatus, and Probe for Receiving Photoacoustic Waves - A photoacoustic apparatus obtains information on a specimen by receiving photoacoustic waves which are generated from the specimen resulting from light irradiated to the specimen. The apparatus includes a light source for irradiating light to the specimen, an acoustic wave receiver for receiving the photoacoustic waves, and a light reflection member for causing the light, which is radiated out of the specimen by optical diffusion thereof after having entered an interior of the specimen from the light source, to reenter the interior of the specimen, wherein the light reflection member allows elastic waves to pass therethrough. As a result, a photoacoustic apparatus and a probe are provided which can confine scattered light from the specimen into the specimen, and which can reliably prevent photoacoustic waves from being generated from a receiving element region of the probe by the scattered light.05-31-2012
20120133940METHOD FOR THE TOMOGRAPHIC EXAMINATION OF MICROSCOPIC OBJECTS AND A SCANNING MICROSCOPE FOR THE IMPLEMENTATION THEREOF - The invention relates to the scan methods and means for tomographic examination of two-dimensional structure of planar objects. The invention aims at developing a method of studying nanodimensional or microscopic objects with a resolution of the order of 30 nanometer and means of implementation of such a method. The task in view is performed such that the scanning microscope comprises a radiation source 05-31-2012
20100182604DEVICE FOR OPTOELECTRONIC MEASUREMENT OF THE HYDRATION OF A PLANT IN ITS NATURAL ENVIRONMENT - An optoelectronic device for measuring the water content in a plant element and an apparatus designed to evaluate and monitor in real time the state of hydration of the plant covers. The device includes an optoelectronic probe connected to a measurement module, the probe including: i) a first light source emitting at a wavelength corresponding to a strong water absorption band; ii) optionally, a second light source emitting at a wavelength close to the first source and weakly absorbed by water; and iii) a photo receiver having a spectral response that corresponds to the emission bands of the first light source or of the first and second light sources, the device including elements for modulating the average optical power emitted by the light source or sources at a defined frequency, and elements for synchronously detecting the light received by the photoreceiver.07-22-2010
20120170041PHOTONIC SENSING METHOD AND DEVICE - This invention describes a photonic sensing method and device based on the periodic dielectric structures of photonic forbidden band, in which the sensing process is carried out through the measurement of variation in signal amplitude as it exits the device. The variation in amplitude is due to a variation in the refraction index of the structure, as a consequence of the presence of the substances that are the object of the sensing. Among the advantages provided by the invention, it is worth mentioning its simplicity in the sensing process; its high level of integration, allowing for a design of reduced proportions; and its adaptability to dielectric structures of one, two or three dimensions.07-05-2012
20120170040APPARATUS FOR MEASURING TRANSMISSIVITY OF PATTERNED GLASS SUBSTRATE - An apparatus for measuring transmissivity of a patterned glass substrate. A beam radiator radiates a laser beam. A collimation lens collimates the laser beam radiated from the laser beam radiator. A beam expander expands a size of the laser beam collimated by the collimation lens. A detector has a light-receiving section, which receives the laser beam that has passed through the patterned glass substrate after having been expanded by the beam expander. A measuring section measures a transmissivity of the patterned glass substrate using the laser beam received by the detector.07-05-2012
20120281218OPTICAL ANALYSIS SYSTEM AND APPROACH THEREFOR - Imaging, testing and/or analysis of subjects are facilitated with a capillary-access approach. According to an example embodiment, a capillary is implanted into a specimen and adapted to accept an optical probe to facilitate optical access into the specimen. In some applications, the capillary is implanted for use over time, with one or more different probes being inserted into the capillary at different times, while the capillary is implanted. Certain applications involve capillary implantation over weeks, months or longer. Other applications are directed to the passage of fluid to and/or from a sample via the capillary. Still other applications are directed to the passage of electrical information between the sample and an external arrangement, via an implanted capillary.11-08-2012
20100007887GLAZING INSPECTION - A method of inspecting the fragmentation pattern of a single ply of toughened glass, following a fragmentation test carried out in accordance with ECE R43 involves illuminating a first portion of the ply of glass in transmission using a strip light source located on a first side of the transparent support. An image of the first portion of the ply of glass is captured using an image capture device located on a second side of the transparent support means, aligned with and fixed in a relative position to the strip light source. A series of images of the glass are collected and analyzed to produce an image of the fragmentation pattern. Imaging can be performed using an apparatus for carrying out the imaging.01-14-2010
20100002233IMAGING OF TURBID MEDIUM - The invention relates to imaging of a turbid medium, for example in connection with optical mammography. A device for imaging a turbid medium (01-07-2010
20120188547PAPER DETECTING DEVICE AND PRINTER INCLUDING THE SAME - A paper detecting device includes a paper detecting element, and a guide element having a path along which the paper detecting element is moved, in which at least one of the engaging element and the guide element includes an engaging element configured to be movable between an engaging position at which the paper detecting element is fixed on the path and a release position at which the paper detecting element is released from the fixation, and a click generator configured to click when the paper detecting element is moved on the path to reach a right position to stop.07-26-2012
20120081708Integrated Embedded Processor Based Laser Spectroscopic Sensor - A novel low-power and compact laser spectroscopic sensor is described herein. Embodiments of the disclosed sensor utilize state-of-the-art microprocessors and digital processing techniques to reduce power consumption and integrate functions into a small device. In particular, novel software methods are disclosed which allow the use of low-power microprocessors which draw no more than about 0.02 W of power. Such low-power enables long battery life and allows embodiments of the sensor to be used in portable applications. In addition, the system architecture and methods described in this disclosure allow a single integrated embedded processor to control all the subsystems necessary for a laser spectroscopic sensor further reducing sensor size and power consumption. In addition, a power efficient method of calibrating a photoacoustic laser spectroscopic sensor is disclosed.04-05-2012
20120262716METHOD AND SYSTEM FOR INTELLIGENTLY IDENTIFYING AND READING AN IMMUNOCHROMATOGRAPHIC STRIP AND APPLICATION THEREOF - A method and system for intelligently identifying and reading an immunochromatographic strip is disclosed. The method includes the following steps: (a) preparing an immunochromatographic strip provided with a bar code, that is, setting a bar code on an immunochromatographic strip to form a bar code layer; (b) identifying the immunochromatographic strip provided with a bar code through a bar code identification circuit, and dispatching an analysis program corresponding to the type of the immunochromatographic strip provided with a bar code; (c) transmitting visible light to irradiate the immunochromatographic strip provided with a bar code through a light-emitting diode (LED) circuit controlled by a central processing unit; receiving reflected or transmitted light through a photoelectrical sensor and converting the received light into electrical signals; and then amplifying the electrical signals through a signal amplification circuit and transmitting the amplified signals to the central processing unit in order to analyze the signals through the analysis program dispatched in step (b); and (d) outputting an analysis result.10-18-2012
20120140228Absorption Measurement System - An absorption measurement system, flexibly usable over a large measuring range, for measuring at least one property of a medium reflected in its absorption behavior, especially a property such as an absorption coefficient (μ). The absorption measurement system comprises: a measuring chamber filled with the medium in measurement operation, in which radiatable beam paths usable as measuring paths and of different lengths, extend completely through the medium; a transmitting unit, which transmits radiation along the measuring paths through measuring chamber in measurement operation; a measuring and receiving unit, which receives radiation passing through measuring chamber on the measuring paths and measures its radiation intensities dependent on the property of the medium and the lengths of the measuring paths; and a measuring electronics, which determines the property based on the measured radiation intensities and the lengths of measuring paths.06-07-2012
20120092672Method and Apparatus for Detecting Overlapped Substrates - An apparatus and method for detection of overlapped substrates, that are at least opaque, analyses a high frequency component caused by speckle for a sudden drop therein. This high frequency component drops dramatically when overlapped substrates are present and therefore allows fast accurate recognition of an overlapped substrate condition. This is useful in many applications including banknote validators.04-19-2012
20080225295DEVICE FOR MULTIPLE TESTS FROM A SINGLE SAMPLE - A sample device and method for analyzing a sample are claimed. The sample device is a flat disc containing channels and wells for directing a sample to reagents located in the disc and for mixing the sample with the reagents. The disc is mounted on an analyzer and the sample is pumped into the disc, divided into a plurality of sub-sample, and at least some of the sub-samples are mixed with a number of reagents. The resultant analytes are analyzed spectrophotometrically for a determination of the concentration of various substances in the sample. The present invention permits multiple tests to be performed quickly and automatically with minimal operator involvement.09-18-2008
20130176569SMALL PARTICLE SENSOR - A sensor having a housing with a first member connected to a second member to form a circular central opening. A plurality of photoelectric transmitters and receivers are placed between the first member and the second member such that each receiver is within a liner-of-sight of each transmitter across the central opening and the signals sent between the receivers and transmitters fills an area of detection.07-11-2013
20080218756SCANNING OPTICAL MICROSCOPE WITH LONG WORKING DISTANCE OBJECTIVE - A scanning optical microscope, including: a light source to generate a beam of probe light; collimation optics to substantially collimate the probe beam; a probe-result beamsplitter; a long working-distance, infinity-corrected objective; scanning means to scan a beam spot of the focused probe beam on or within a sample; relay optics; and a detector. The collimation optics are disposed in the probe beam. The probe-result beamsplitter is arranged in the optical paths of the probe beam and the resultant light from the sample. The beamsplitter reflects the probe beam into the objective and transmits resultant light. The long working-distance, infinity-corrected objective is also arranged in the optical paths of the probe beam and the resultant light. It focuses the reflected probe beam onto the sample, and collects and substantially collimates the resultant light. The relay optics are arranged to relay the transmitted resultant light from the beamsplitter to the detector.09-11-2008
20130100449METHOD AND DEVICE FOR MEASURING SCATTERING-ABSORPTION BODY - Light irradiates one light incident position on the surface of a scattering-absorption body. The light that propagates through the interior of the scattering-absorption body is detected at one light detecting position on the surface of the scattering-absorption body. On the basis of a light detection signal, a temporal profile of the light intensity of the detected light is acquired, and on the basis of the temporal profile, an mean optical path length of the light in the interior of the scattering-absorption body and information relating to the amount of substance to be measured in a region to be measured are calculated. The information relating to the amount of substance to be measured is corrected on the basis of the mean optical path length, such that the longer the mean optical path length, the greater the amount of substance to be measured is.04-25-2013
20110273712APPARATUS AND METHODS USING HOLLOW-CORE FIBER TAPERS - An optical device and methods of using an optical device are provided. The optical device includes a hollow-core fiber including a first portion and a second portion. The first portion includes a hollow core having a first diameter. The second portion includes a hollow core having a second diameter smaller than the first diameter. The difference between the first diameter and the second diameter is less than 10% of the first diameter.11-10-2011
20130155407METHOD FOR RECONSTRUCTING THE OPTICAL PROPERTIES OF A MEDIUM USING A COMBINATION OF A PLURALITY OF MELLIN-LAPLACE TRANSFORMS OF A MAGNITUDE COMPRISING A TIME DISTRIBUTION OF A RECEIVED SIGNAL, AND ASSOCIATED RECONSTRUCTION SYSTEM - A method reconstructing the optical properties of a medium using a reconstruction system has a radiation source lighting the medium and a detector receiving a signal transmitted by the medium. The steps include lighting the medium using a radiation source, receiving by the detector of a signal emitted by the medium, and processing, for a source-detector pair, of a first distribution of the signal received by the corresponding detector. Then computing the Mellin-Laplace transform, for a given order and a given variable, of a magnitude comprising the first distribution, the order being an integer, the variable being a real number, and reconstructing optical properties of the medium using the Mellin-Laplace transform of said magnitude. The computation step includes computing a plurality of Mellin-Laplace transforms of the magnitude for distinct values of the order, and the reconstruction step is carried out from a combination of the plurality of Mellin-Laplace transforms.06-20-2013
20110255090PHOTOMETER AND ANALYZING SYSTEM PROVIDED WITH PHOTOMETER - In an analysis system for detecting amounts of components contained in samples, many samples can be measured simultaneously in the whole of the system by use of compact inexpensive photometers. An LED with low heat generation and a long life span is used as a light source. Compactness is achieved by bended optical axis instead of a straight one. Components for bending an optical axis and components for condensing light to ensure an amount of light are in common use to reduce the number of components. Compactness, reduction of the number of components, and integration achieve easy optical axis alignment and precise measurement.10-20-2011
20120281217X-RAY IMAGING APPARATUS AND WAVEFRONT MEASURING APPARATUS - There is provided an X-ray imaging apparatus which images a specimen. The X-ray imaging apparatus comprises: an X-ray source; a diffraction grating configured to diffract an X-ray from the X-ray source; an X-ray detector configured to detect the X-ray diffracted by the diffraction grating; and a calculator configured to calculate phase information of the specimen on the basis of an intensity distribution of the X-ray detected by the X-ray detector, wherein the calculator obtains a spatial frequency spectrum from the plural intensity distributions, and calculates the phase information from the obtained spatial frequency spectrum.11-08-2012
20120019828INTEGRATED ANALYTICAL SYSTEM AND METHOD - An analytical assembly within a unified device structure for integration into an analytical system. The analytical assembly is scalable and includes a plurality of analytical devices, each of which includes a reaction cell, an optical sensor, and at least one optical element positioned in optical communication with both the reaction cell and the sensor and which delivers optical signals from the cell to the sensor. Additional elements are optionally integrated into the analytical assembly. Methods for forming and operating the analytical system are also disclosed.01-26-2012
20130094025COMPONENT CONCENTRATION MEASUREMENT DEVICE AND COMPONENT CONCENTRATION MEASUREMENT METHOD - Light emitted from a light source section is split into measurement light and gate light by a splitter section. The measurement light is applied to an object by an irradiation section. Emitted light from the object is condensed by a condenser section, and relayed to a light conversion section by a relay section. The gate light obtained by the splitter section is guided to an optical shutter section. In this case, the gate light is changed in optical path length by a gate light guide section, and guided to a Kerr material section. A time-resolved waveform is calculated from a light intensity detection result at the optical path length that has been changed, and the concentration of a component contained in the object is calculated.04-18-2013

Patent applications in class FOR LIGHT TRANSMISSION OR ABSORPTION

Patent applications in all subclasses FOR LIGHT TRANSMISSION OR ABSORPTION