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Plural photosensitive nonimage detecting elements

Subclass of:

250 - Radiant energy

250200000 - PHOTOCELLS; CIRCUITS AND APPARATUS

250206000 - Photocell controlled circuit

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
250208600 With specific relative positional geometry of photosensitive elements (e.g., an annular photosensitive element surrounding a coaxially mounted photosensitive element) 9
250208300 With electronic scanning 4
20130161491OPTICAL TOUCH CONTROL MODULE - An optical touch control module for providing at least one sensing area includes: a light-reflecting unit, a first light-sensing unit and a second light-sensing unit. The light-reflecting unit includes a light-reflecting element for partially surrounding the sensing area. The first light-sensing unit is disposed beside one edge of the at least one sensing area and adjacent to one end of the light-reflecting element. The first light-sensing unit includes at least one first light-emitting element, at least one first light-detecting element, and at least one first oscillating reflecting element oscillating depending on time. The second light-sensing unit is disposed beside another edge of the at least one sensing area and adjacent to another end of the light-reflecting element. The second light-sensing unit includes at least one second light-emitting element, at least one second light-detecting element, and at least one second oscillating reflecting element oscillating depending on time.06-27-2013
20120006976High Resolution, High Speed, Miniaturized Optical Encoder - Disclosed are various embodiments of a single track reflective optical encoder featuring current amplifiers disposed in the signal generating circuit thereof. Voltage amplifiers and their associated feedback resistors are eliminated in the various embodiments disclosed herein, resulting in decreased die size and improved encoder signal accuracy and performance, especially at high speeds The single track optical encoder configurations disclosed herein permit very high resolution reflective optical encoders in small packages to be provided. Methods of making and using such optical encoders are also disclosed.01-12-2012
20100038520METHOD AND APPARATUS FOR DETECTING PRESENCE AND RANGE OF A TARGET OBJECT USING A MULTIMODE DETECTOR - A multifunction detector for detecting energy reflected from the surface, the detector comprising: a focal plane array in communication with the optical receiving path; and an optical receiving path; a read-only integrated circuit in communication with the optical receiving path, integrated with a focal plane array; and a processor programmed to operate the focal plane array and read-out integrated circuit in a first mode to process signals in a first frequency band, and in a second mode to process signals in a second, wider frequency band.02-18-2010
20090050788System for Sequentially Measuring the Output of a Plurality of Light Sensors Which Generate Current in Response to Incident Light - A system for sequentially measuring the current generated by a plurality of individual current sources such as photodiodes monitoring the light output of individual LEDs representing discrete colors arranged in an array of pixels constituting an area illumination source such as an electronic billboard includes (1) a current measuring circuit connected to each current source/photodiode; (2) a separate switch such as a switching diode connected in series with each current source/photodiode and (3) sequential control means for sequentially enabling each switch/switching diode to conduct current from the current source/photodiode to the current measuring circuit while maintaining all of the remaining switches in the disable state.02-26-2009
250208400 Used to switch an electrical circuit or device on or off 2
20120235025SWITCH - A slit is formed in a plunger of a limit switch in such a manner that an amount of light incident on a light receiving element is changed in accordance with displacement of the plunger. The limit switch is provided with a setting processing unit (09-20-2012
20110303826PHOTOSENSITIVE CONTROL SYSTEM, AND METHOD OF OPERATING THEREOF - A photosensitive control system includes a light source device configured to provide a directional light beam and a photosensitive device which includes at least one pre-arranged photosensitive unit. Also, the photosensitive control system has a light guide device configured between the light source device and the photosensitive device for guiding the light beam to the at least one photosensitive unit and therefore the photosensitive device produces a sensing signal. In addition, the photosensitive control system includes a controller configured to receive the sensing signal and provide control data in accordance with the sensing signal.12-15-2011
250208500 With photodetector output ratioing other than by bridge or push-pull circuits 1
20130032698OPTICAL COUPLING DEVICE - According to one embodiment, an optical coupling device is provided.02-07-2013
Entries
DocumentTitleDate
20130043374METHOD AND APPARATUS FOR INSPECTING BIOLOGICAL SAMPLES - A method of selecting for analysis a sample of a biological material anisotropically distributed on a substrate is disclosed, comprising the steps of directing a beam of radiation onto the substrate, said radiation being selected to interact with the biological material to an extent corresponding to the anisotropy; measuring the interaction at plurality of locations; and selecting the sample by reference to the measurements.02-21-2013
20110180691DATA PROCESSING CIRCUIT WITH AN ELEMENTARY PROCESSOR, DATA PROCESSING ASSEMBLY INCLUDING AN ARRAY OF SUCH CIRCUITS, AND MATRIX SENSOR INCLUDING SUCH AN ASSEMBLY - A data processing circuit includes a data processing unit including two signal-conversion circuits and controlled switches connected to inputs and outputs of the conversion circuits. The data processing unit further includes a binary signal inlet, a binary signal outlet, and a memory unit. The memory unit includes capacitors each storing a binary piece of data. The capacitors are connected to a memory bus via switches. The bus is connected to the processing unit. In response to control signals provided to the controlled switches, the data processing unit performs at least the following operations: writing a binary datum in a capacitor, reading from a capacitor a binary datum stored therein and applying the datum to an output, and logically combining binary data stored in at least two capacitors.07-28-2011
20130037700OPTICAL SENSOR - An optical sensor includes: first and second light receiving elements on a semiconductor substrate; a light blocking film over the semiconductor substrate via a light transmitting film; and first and second openings corresponding to the light receiving elements and disposed in the light blocking film. First and second virtual lines are defined to extend from the centers of the first and second light receiving elements and pass through the centers of the first and second openings, respectively. At least one of elevation angles and left-right angles of the first and second virtual lines are different. The photosensitive area of the first light receiving element is larger than the aperture area of the first opening. The photosensitive area of the second light receiving element is larger than the aperture area of the second opening.02-14-2013
20120175502OPTICAL MODULE - Embodiments of the present invention provide an optical module, including an MT-Ferrule and a photoelectric conversion unit. The MT-Ferrule is configured to connect multiple channels of optical channels outside the optical module with multiple channels of optical channels of the photoelectric conversion unit, and implement coupling and transmission of multiple channels of single-mode optical signals between the two. The photoelectric conversion unit is configured to convert multiple channels of single-mode optical signals input from the MT-Ferrule into multiple channels of electrical signals and output the multiple channels of electrical signals, and generate, driven by multiple channels of input electrical signals, multiple channels of single-mode optical signals and output the multiple channels of single-mode optical signals to the MT-Ferrule.07-12-2012
20090121118Photodiode Array and Optical Microwave Transmission System Receiver - Provided is a photodiode array that is capable of outputting an electric signal with a large electric power and an optical microwave transmission system receiver that supplies an electric power with the aid of an optical fiber and does not require the electric power line from the external. An input modulation light is branched and input to a plurality of photodiode elements (05-14-2009
20120211644LIGHT-FIELD PIXEL - A light-field pixel for detecting a wavefront, the light-field pixel comprises an aperture layer, a light detector layer, and a processor. The aperture layer has a non-conventional aperture and a non-conventional aperture. The non-conventional aperture has a higher gradient of transmission at normal incidence than the conventional aperture. The light detector is configured to measure a first intensity of light through the non-conventional aperture and a second intensity of light through the conventional aperture. The processor is configured to detect the wavefront based on the first intensity normalized by the second intensity.08-23-2012
20100006745Light Grid With Parallel Evaluation - A light grid includes pairs of transmitters and receiver units, and a programmable logic unit for signal evaluation. The analog part of the light grid includes only the reception elements and the storage capacitors for performing analog-to-digital conversion.01-14-2010
20100006746COLOR SENSOR AND ELECTRONIC DEVICE HAVING THE SAME - A color sensor with a plurality of optical sensors in which the number of terminals for connection with the outside can be reduced. The color sensor includes a plurality of optical sensors each provided with a photoelectric conversion element and an optical filter over a light-transmitting substrate. The optical filters in the plurality of optical sensors have light-transmitting characteristics different from each other. The plurality of optical sensors is mounted over an interposer including a plurality of terminal electrodes for electrical connection with an external device. The interposer includes a wiring having a plurality of branches for electrical connection between the terminal electrode for inputting a high power supply potential to the plurality of optical sensors and a wiring having a plurality of branches for electrical connection between the terminal electrode for inputting a low power supply potential to the plurality of optical sensors.01-14-2010
20130048834INPUT DEVICE - The input device includes a frame-shaped optical waveguide having a hollow input-use interior, and a control means provided on the outside of one of the sides of the optical waveguide. The optical waveguide and the control means are provided on a surface of a frame-shaped retainer plate. The control means includes: a light-emitting element connected to ends of light-emitting cores of the optical waveguide; a light-receiving element connected to ends of light-receiving cores of the optical waveguide; and a CPU incorporating a program. Upon sensing a first light-shielded area where light is intercepted by the tip of a pen and a second light-shielded area where light is intercepted by user's hand that holds the pen, the program recognizes the second light-shielded area larger than the first light-shielded area as unnecessary information, based on a difference in light-shielded area.02-28-2013
20130048835VEHICLE REARVIEW MIRROR SYSTEM - A vehicle interior rearview mirror system includes an interior rearview mirror assembly having a reflective element and ambient and glare light sensors. A control circuit is operable to establish a reflectance level of the reflective element. At least one of (a) the mirror system includes a charge accumulation device selectively connected with the ambient or glare light sensor and the control circuit establishes the ambient and glare light levels as a function of time for an output of the charge accumulation device to reach a reference level when connected to the respective light sensor, (b) a common element is used to measure outputs of the light sensors sequentially to correspond errors due to component variations, and (c) the mirror system includes temperature compensation of the glare and/or ambient light sensor and the temperature compensation is responsive to a reference light sensor that is substantially not exposed to light.02-28-2013
20130056621SIGNS-OF-DETERIORATION DETECTOR FOR SEMICONDUCTOR LASER - A signs-of-deterioration detector for a semiconductor laser includes a first light receiving section that acquires first information relating to an optical output of the semiconductor laser and a second light receiving section that acquires second information relating to an intensity distribution of the emission pattern below the lasing threshold of the semiconductor laser. The detector also includes a holding section that holds the first information and the second information at a predetermined time point T03-07-2013
20130056620DEVICE FOR LIGHTING AN OBJECT, WITH LIGHT SOURCE PROVIDED WITH A MEMBER FOR SAMPLING A PORTION OF SAID LIGHT, APPLICATION TO THE MEASUREMENT OF FLUX VARIATIONS OF THE SOURCE - A device for lighting an object, with light source provided with a member for sampling a portion of the light, application to the measurement of flux variations of the source. The device includes at least one light source emitting an illuminating light around an illumination axis, for lighting the object, and a photodetector.03-07-2013
20130062506MULTI-SPECTRUM PHOTOSENSITIVE DEVICE - A multi-spectrum photosensitive device comprises two, three, or four composite sensing pixels arranged in layers up and down in a base layer of P-type or N-type silicon by means of single-sided processing or double-sided processing, each composite sensing pixels can sense respectively spectrum orthogonal or complementary to each other in visible light or visible and infrared light. The basic sensing pixels on different layers of the composite sensing pixels can be designed to sense different colors or spectrums, so that a multi-spectrum photosensitive chip can be achieved by repeatedly arranging the macro units consisting of more than one composite sensing pixel. The present disclosure also includes a new multi-layer sensing pixel, and examples of which used in a single-sided double-layer, or a double-sided double-layer, or a double-sided three-layer, or a double-sided four-layer, or a single-sided mixed double-layer, or a double-sided mixed with double-layer or a multi-layer multi-spectrum sensing device. A multi-spectrum photosensitive device according to the present disclosure has the advantage of better color sensing performance, integration of color sensing and infrared sensing, and a simple processing technique.03-14-2013
20090236499Key Device and Electronic Device Comprising the Same - The key device of the present invention is provided with: first light-emitting portions that emit light propagating in a first direction; second light-emitting portions that emit the light R propagating in a second direction; converters H that can convert a propagating direction of light from the first direction to the second direction, or from the second direction to the first direction; first light-receiving portions that receive light propagating in the first direction through the converters; second light-receiving portions that receive light propagating in the second direction through the converters; and a plurality of keys, which are provided correspondingly to the converters, and which determine whether the propagating direction of light is converted in the converters.09-24-2009
20130068934MULTI-SPECTRUM PHOTOSENSITIVE DEVICES AND METHODS FOR SAMPLING THE SAME - A multi-spectrum photosensitive device and method for sampling the same, the method includes a first combining process for combining-and-sampling two adjacent pixels in same row different column, or in different row same column, or in different row different column in the pixel array to obtain a sampling data of a first combined pixel; a second combining process for combining-and-sampling the sampling data of the first combined pixel obtained from the first combining unit to obtain a sampling data of a second combined pixel; and a third combining process, a sampling data of a third combined pixel is obtained by a method for color conversion and image scaling in a digital space. The application is applied for a multi-pixel sharing reading and amplifying circuit of a single-layer color photosensitive chip, a single-sided multi-layer photosensitive chip, and a double-sided double-layer photosensitive chip. In the basis of the spirit of the existing pixel reading circuit, the application has orders of magnitude breakthrough in principle, basic circuit and performance, and implements a YUV format output of a sub-sampling image in a photosensitive device at the same time of implementing sub-sampling with high performance.03-21-2013
20130068933Flame Detector Using Optical Sensing - A multi-sensor fire detector includes first and second flame sensors which are coupled to an external environment by a rigid, tapered, optical coupling element. An external end of the coupling element has a cured hemispherical shape with a viewing angle approaching one hundred eighty degrees. Processing and control circuits coupled to the sensors make a determination as to the presence of a fire condition.03-21-2013
20130214133CONFIGURABLE PHOTO DETECTOR CIRCUIT - A configurable photo detector circuit comprises a photo detector array including a plurality of photo detectors coupled to a plurality of amplifiers. A method for programming a detection pattern of the configurable photo detector circuit comprises selecting a first detection pattern for the photo detector array, generating first signals to create the first selected detection pattern, and applying the first generated signals to the photo detector circuit to implement the first selected detection pattern.08-22-2013
20120235024COHERENT OPTICAL SIGNAL PROCESSING - Coherent optical signal processing is performed in a coherent receiver (or diagnostic/testing apparatus) that converts an amplitude and/or angle-modulated optical signal into two electrical signals. A simple receiver can only detect one phase of the signal and only the polarization that is aligned with a local oscillator laser polarization. To detect both phases and both polarizations, two sets of two interferometers, one each with a π/2 phase shift are required. Coherent optical signal processing methods, apparatus, techniques, etc. are disclosed that include individual components comprising a polarization combiner, a Savart device and photodetection apparatus with substantially reduced temperature and alignment sensitivity operating in optical communication systems and/or subsystems. The various embodiments can be used alone or in such combinations to provide improved coherent optical signal processing in a receiver.09-20-2012
20100252719Optical Encoder with Code Wheel Misalignment Detection and Automatic Gain Control - According to one embodiment, there is provided a device and method for correcting code wheel misalignment which employs upper and lower code wheel misalignment photodetectors positioned above and below at least first and second motion detection photodetectors. According to other embodiments, there are provided a device and method for automatically setting the gain of an output circuit in an optical encoder. Still further embodiments of optical encoders combine the code wheel misalignment and automatic gain control features of the invention.10-07-2010
20110284725MICROLENS ARRAYS FOR ENHANCED LIGHT CONCENTRATION - A novel micron-scale lens, a microlens, is engineered to concentrate light efficiently onto an area of interest, such as a small, light-sensitive detector element in an integrated electronic device. Existing microlens designs imitate the form of large-scale lenses and are less effective at small sizes. The microlenses described herein have been designed to accommodate diffraction effects, which dominate the behavior of light at small length scales. Thus a new class of light-concentrating optical elements with much higher relative performance has been created. Furthermore, the new designs are much easier to fabricate than previous designs.11-24-2011
20110290986DEVICE FOR DETECTION OF ELECTROMAGNETIC RADIATION WITH LOW SENSITIVITY TO SPATIAL NOISE - An electromagnetic radiation detection device including multiple elementary detectors (12-01-2011
20100032551OPTICAL DETECTOR DEVICE - The invention relates to an optical detector device (02-11-2010
20110139964Systems And Methods That Detect Changes In Incident Optical Radiation - Systems, methods and sensors detect changes in incident optical radiation. Voltage is applied across one or more active areas of a detector while the incident optical radiation illuminates the active areas. Current is sensed across one or more of the active areas, a change in the current being indicative of the changes in incident optical radiation.06-16-2011
20100127159PHOTODETECTING SEMICONDUCTOR APPARATUS AND MOBILE DEVICE - One embodiment of a photodetecting semiconductor apparatus is provided with a sensor chip, a resin-sealed package in which the sensor chip is resin-sealed with a transparent resin, and a color filter disposed on the surface of the sensor chip, with a sensor circuit unit and a light-sensitive element group being formed in the sensor chip. The light-sensitive element group is configured with a color light-sensitive element having a sensitivity peak for color and an infrared light-sensitive element having a sensitivity peak for infrared light. The color light-sensitive element includes a red light-sensitive element having a sensitivity peak for red, a green light-sensitive element having a sensitivity peak for green, and a blue light-sensitive element having a sensitivity peak for blue.05-27-2010
20120091319DRIVING METHOD FOR PHOTOSENSOR ARRAY PANEL - A driving method for a photosensor array panel including a plurality of photosensor strips, a plurality of scan lines, at least a dummy photosensor strip, and at least a dummy scan line is provided. The photosensor strips are arranged side by side and located beside the dummy photosensor strip. The scan lines are electrically connected to the photosensor strips, and the dummy scan line is electrically connected to the dummy photosensor strip. The driving method includes the following steps. First, the photosensor strips are turned on in sequence through the scan lines. When none of the photosensor strips is turned on, the dummy photosensor strip will be turned on through the dummy scan line.04-19-2012
20100102207Method for Measuring Information of Technical Systems - The invention relates to a method for measuring information of biological systems. The aim of the invention is to receive signals using less energy. To achieve this, random generators are used as receivers (B) of low-energy quanta, since the random generators can be regarded and implemented as antennae and receivers of signals of this type. The extensive natural transmission range of low-energy quanta can also be used to receive information from spatially remote systems.04-29-2010
20110006194METHOD AND DEVICE FOR MEASURING SOLAR IRRADIANCE USING A PHOTOVOLTAIC PANEL - The present invention relates to a measurement method to determine the magnitude and intensity of solar radiation/collected by a photovoltaic solar panel, without the need of using specific sensors for this purpose—With the present method̂ the power conditioning systems used in small photovoltaic panels to charge small rechargeable batteries, will now be able to provide an electrical signal, in the form of a pulse sequence or in any other electrical signal, that represents the value of the quantity that generates the available energy. The present method enables the monitoring the energy transfer between the solar panel and a rechargeable battery using a switched, voltage converter; additionally it indicates the magnitude of the solar radiation falling on the solar panel. It is based on the adaptation of a direct voltage to direct voltage boost converter circuit in. order to provide an electrical signal which is correlated to the magnitude of the solar irradiance falling on the solar panel, which in turn powers the voltage converter circuit. The invention also relates to a device for implementing this method.01-13-2011
20110204212CONFOCAL IMAGING METHODS AND APPARATUS - The invention provides imaging apparatus and methods useful for obtaining a high resolution image of a sample at rapid scan rates. A rectangular detector array having a horizontal dimension that is longer than the vertical dimension can be used along with imaging optics positioned to direct a rectangular image of a portion of a sample to the rectangular detector array. A scanning device can be configured to scan the sample in a scan-axis dimension, wherein the vertical dimension for the rectangular detector array and the shorter of the two rectangular dimensions for the image are in the scan-axis dimension, and wherein the vertical dimension for the rectangular detector array is short enough to achieve confocality in a single axis.08-25-2011
20110204211OPTOELECTRONIC SENSOR - An optoelectronic sensor (08-25-2011
20100270460ELECTROMAGNETIC DEVICE WITH INTEGRAL\NON-LINEAR COMPONENT - An optical antenna assembly including multiple optical antenna elements, each of the optical antenna elements are arranged in a regular pattern and carried by a supporting body. The regular pattern of the plurality of optical antenna elements is nonuniform. Certain ones of the optical antenna elements are configured to respond to the one or more waves of light.10-28-2010
20110266418Charged particle multi-beamlet lithography system, modulation device , and method of manufacturing thereof - The invention relates to a modulation device for use in a charged particle multi-beamlet lithography system. The device includes a body comprising an interconnect structure provided with a plurality of modulators and interconnects at different levels within the interconnect structure for enabling connection of the modulators to one or more pattern data receiving elements. A modulator includes a first electrode, a second electrode, and an aperture extending through the body. The electrodes are located on opposing sides of the aperture for generating an electric field across the aperture. At least one of the first electrode and the second electrode includes a first conductive element formed at a first level of the interconnect structure and a second conductive element formed at a second level of the interconnect structure. The first and second conductive elements are electrically connected with each other.11-03-2011
20090014630EXTENDED DYNAMIC RANGE SYSTEM DESIGN - Systems and method for detecting and measuring light emitted from a sample and having a large dynamic range, e.g., a range of luminous intensity covering six or more orders of magnitude, that may be difficult to fully detect using a single detector with a limited detection range. Simultaneous measurement of the emitted light in two intensity ranges is performed using two detectors, e.g., one including a photomultiplier tube (PMT) and the other including a solid state detector such as a photodiode. A beam splitting element directs light emitted from a sample under investigation to both detectors simultaneously such that a portion of the light impinges on the first detector and a second portion of the light impinges on the second detector. A processor receives output signals from the two detectors and provides an output representing the luminous intensity of the sample over a detection range greater than the detection range of each individual detector, thereby providing a detection system having an enhanced dynamic range.01-15-2009
20100200732OPTICAL READING SYSTEM AND METHOD OF OPERATION - An optical sensor for detecting motion or movement in an area of interest and a method of operation is provided. The system includes a CMOS sensor having an array of pixels that captures images in an area of interest. The system monitors the average pixel value for the array to define a first state. If the average pixel value changes beyond a defined threshold, the system defines a second state. For each change in state, a signal is generated. In one embodiment, the optical sensor is used with a meter having a dial with an indicator. The optical sensor generates a signal each time the indicator passes through the area of interest to allow for the remote monitoring of a consumable commodity.08-12-2010
20120193517OPTICAL MICRO-SENSOR - Briefly, embodiments of an optical micro-sensor are described.08-02-2012
20100155577Obtaining Sensing Results Indicating Time Variation - In response to objects having relative motion within an encoding/sensing region relative to an encoder/sensor that, e.g., photosenses emanating light or performs impedance-based sensing, sensing results can indicate sensed time-varying waveforms with information about the objects, about their relative motion, about excitation characteristics, about environmental characteristics, and so forth. An encoder/sensor can include, for example, a non-periodic arrangement of sensing elements; a longitudinal sequence of sensing elements with a combined sensing pattern that approximates a superposition or scaled superposition of simpler sensing patterns; and/or IC-implemented sensing elements that include photosensing arrays on ICs and readout/combine circuitry that reads out photosensed quantities from cells in groups in accordance with cell-group sensing patterns and combines the readout photosensed quantities to obtain the sensing results. Objects can move fluidically as in flow cytometry, through scanning movement as in document scanning, or in other ways.06-24-2010
20100187405PHOTOELECTRIC CONVERSION DEVICE AND MANUFACTURING METHOD THEREOF - It is an object to provide a photoelectric conversion device which detects light ranging from weak light to strong light. The present invention relates to a photoelectric conversion device having a photodiode having a photoelectric conversion layer, an amplifier circuit including a thin film transistor and a bias switching means, where a bias which is connected to the photodiode and the amplifier circuit is switched by the bias switching means when intensity of incident light exceeds predetermined intensity, and accordingly, light which is less than the predetermined intensity is detected by the photodiode and light which is more than the predetermined intensity is detected by the thin film transistor of the amplifier circuit. By the present invention, light ranging from weak light to strong light can be detected.07-29-2010
20100148036Photodetector circuit - A photodetecting circuit includes an adder that selectively adds outputs of a plurality of circuits for photodetection. Each of the circuits for photodetection includes: a element for photodetecting; a transimpedance amplifier for photodetection, with a first input terminal connected to the photodetecting element; a transconductance amplifier, with a first input terminal connected to an output terminal of the transimpedance amplifier; and a feedback circuit, connected between the output terminal of the transimpedance amplifier for photodetection and the first input terminal of the transimpedance amplifier for photodetection and applying feedback to keep fixed an output voltage of the transimpedance amplifier for photodetection.06-17-2010
20100243865Cross-strip charge multiplexing readout for differential detector arrays - An array of two-terminal detectors is configured to provide output signals that provide position sensitive radiation detection (e.g., outputs A and B provide vertical position and outputs C and D provide horizontal position), and which are differential (i.e., signal A+B is equal and opposite to signal C+D). Preferably, a capacitive network is employed to provide the position sensitivity. Array outputs are preferably provided to a low impedance amplifier or opto-electronic coupler.09-30-2010
20090256062OPTICAL COMMUNICATION DEVICE AND ELECTRONIC EQUIPMENT - An optical communication device includes a one-chip light receiving element having a plurality of light receiving sections having light receiving sensitivity to different wavelength ranges in a visible light spectrum. The photodiode has a light receiving surface, which is divided into nine blocks. For each light receiving section group in which light receiving sections have the light receiving sensitivity to an identical wavelength range, the light receiving sections are dispersedly placed in corresponding ones of the blocks.10-15-2009
20090200453Optical Touch Screen Assembly - An optical touch panel including a support defining a detection region, an optical illumination assembly including at least two edge emitting optical light guides extending along adjacent portions of the detection region and having ends adjacent to one another and at least one mechanical coupling and optical coupling assembly, at least one sensor assembly, operative to detect changes in the light received from the optical illumination assembly produced by the presence of an object in the detection region and detection circuitry receiving at least one output from the at least one sensor assembly and providing an output indication of the two dimensional location of object impingement in the detection region.08-13-2009
20090045324SCANNING OPTICAL SYSTEM MEASURING DEVICE AND SCANNING OPTICAL SYSTEM MEASURING METHOD - Measurement of a scanning optical system is to be carried out simply and easily. According to the invention, a scanning optical system measuring device for making adjustment of a scanning optical system which performs scanning with a light beam, includes: plural one-dimensional position detection devices provided at a distance from each other in a scanning direction of a light beam caused to perform scanning, and arranged to intersect the scanning direction of the light beam, and configured to output light receiving position of the light beam caused to perform scanning, as an analog signal; and a detection signal processing unit configured to detect scanning state of the light beam on the basis of a detection signal of the one-dimensional position detection devices.02-19-2009
20110127410OPTICAL SENSOR, OPTICAL SENSOR ARRAY, OPTICAL SENSOR DRIVING METHOD, AND OPTICAL SENSOR ARRAY DRIVING METHOD - An optical sensor that is a transistor which includes a gate electrode including a semiconductor material where the carrier concentration is 1.0×1006-02-2011
20100301194Optical Receiver Comprising Breakdown-Voltage Compensation - The present invention enables the detection of light using an APD that has high gain and/or a wide range of operating temperature. A first APD is biased with a voltage bias that is controlled based on the breakdown voltage of a second APD, which is thermally coupled with the first APD. Changes in the breakdown voltage of the second APD due to aging, temperature chances, and the like, are reflective of changes in the breakdown voltage of the first APD. As a result, the first APD can be operated with greater stability and reliability at high gain and over larger temperature excursions than APDs known in the prior art.12-02-2010
20090065682SOI structure including nanotaper with improved alignment capabilities to external light guide - An arrangement for providing alignment between an optical nanotaper coupler and a free space optical signal includes the formation of a “ridge” structure around the location of the nanotaper coupler to reduce stray light-related errors in the alignment process. The ridge is preferably formed by etching vertical sidewalls through the inter-level dielectric (ILD) and buried oxide (BOX) layers of the SOI structure. When an optical source (such as an illuminated fiber, laser, etc.) is scanned across this etched arrangement, the signal received by an associated photodetector registers an increase at the boundary between the etched region and the vertical sidewall of the ridge, thus defining the bounds within which the nanotaper coupler is located. Since the dimensions of the ridge are known and controlled by the etching process, the location of the nanotaper coupler tip along the endface of the ridge can be determined from this scan.03-12-2009
20110114824APPARATUS AND METHOD FOR PREVENTING CHARGE PUMPING IN SERIES CONNECTED DIODE STACKS - An ambient light sensor includes a first stack of at least two photodiodes, wherein a cathode of one of the at least two photodiodes is electrically connected to an anode of another of the at least two photodiodes. The ALS further includes a bias source for providing a bias voltage to the first stack, and at least one switch electrically connected to the first stack. The at least one switch is operative to periodically apply the bias voltage to and remove the bias voltage from the first diode stack.05-19-2011
20110062311CIRCUIT AND METHOD FOR TEMPERATURE AND PROCESS INDEPENDENT TRANSIMPEDANCE AMPLIFIER ARRANGEMENT - An integrated circuit transimpedance amplifier arrangement constituted of: a plurality of internal matched resistors; a current multiplier arranged to output a signal whose value is a function of an input current signal, an external resistor and a first set of the plurality of internal matched resistors; and an output transimpedance amplifier coupled to the output of the current multiplier, the output transimpedance amplifier exhibiting a gain whose value is a function of a second set of the plurality of internal matched resistors, wherein the output of the output transimpedance amplifier is a function of the input current signal, the external resistor, the first set of the plurality of internal matched resistors and the second set of the plurality of internal matched resistors, wherein the variations with temperature of the first set of the plurality of internal matched resistors and the second set of the plurality of internal matched resistors cancel.03-17-2011
20110240833PARALLEL ANALOG-TO-DIGITAL CONVERSION METHOD, DEVICE IMPLEMENTING SAID METHOD AND IMAGING DETECTOR COMPRISING SAID DEVICE - An ADC includes: 10-06-2011
20120228478PORTABLE ELECTRONIC DEVICE, PARTICULARLY AN ELECTRONIC CARD, PROVIDED WITH AN OPTICAL SWITCH - A portable electronic device, for example an electronic card, includes at least one electronic unit associated to an optical switch which can be actuated by a user and which includes two photo-detectors arranged sufficiently far from each other in the electronic device to enable the user to cover only one of the two photo-detectors with one finger. The switch includes a logical circuit to which are provided a first and a second light reception signal respectively coming from the two photo-detectors. The logical circuit is arranged to supply a signal which only indicates actuation of the optical switch when the first and second light reception signals correspond to two different logical states for the logic circuit.09-13-2012
20110101207Methods and Apparatus for Swept-Source Optical Coherence Tomography - In one embodiment of the invention, a semiconductor optical amplifier (SOA) in a laser ring is chosen to provide low polarization-dependent gain (PDG) and a booster semiconductor optical amplifier, outside of the ring, is chosen to provide high polarization-dependent gain. The use of a semiconductor optical amplifier with low polarization-dependent gain nearly eliminates variations in the polarization state of the light at the output of the laser, but does not eliminate the intra-sweep variations in the polarization state at the output of the laser, which can degrade the performance of the SS-OCT system.05-05-2011
20110068255PHOTODETECTORS USEFUL AS AMBIENT LIGHT SENSORS - A photodetector includes one or more first photodiode regions that are covered by an optical filter configured to reject infrared (IR) light and that produce a first current (I03-24-2011
20130168534METHOD FOR TIMING-PICK-OFF OF UNDERSAMPLED PULSES FROM RADIATION DETECTORS - A process and device for generating a prototype waveform and a weighting function. The process including obtaining waveforms generated by a detector having at least one photosensor, generating an initial estimate for the prototype waveform and the weighting function and parameterizing the prototype waveform and the weighting function and determining for each waveform an optimal amplitude and an optimal time offset of the prototype waveform. Included are steps of pairing waveforms based on the determined time offsets of the waveforms, calculating an arrival time difference for each pair of waveforms and determining a timing resolution value based on the calculated arrival time differences, determining whether the timing resolution value meets predetermined minimization criteria, and updating the set of parameters for the prototype waveform and the weighting function and repeating the determining, pairing, calculating, and determining, when the timing resolution value fails to meet the predetermined minimization criteria.07-04-2013
20100224761LIGHT RECEIVING DETECTION CIRCUIT - A light receiving detection circuit has a light receiving element configured to receive light emitted from a corresponding projection element, a current/voltage conversion circuit that converts a current signal passing through the light receiving element into a voltage signal, and a filter portion that has a plurality of stages. The filter portion has a high-pass filter and an amplifying circuit. The high-pass filter is able to be switched such that a time constant of the high-pass filter increases when the light receiving element receives light emitted by the corresponding projection element such that the time constant decreases when other projection elements except for the corresponding projection element emit the light.09-09-2010
20110260041ILLUMINANCE SENSOR - Provided is an illuminance sensor in which a consumption current is independent of an illuminance level of incident light. Amplifiers (10-27-2011
20110260040Charged particle multi-beamlet lithography system with modulation device - A charged particle lithography system for transferring a pattern onto the surface of a target. The system comprises a beam generator for generating a plurality of charged particle beamlets, the plurality of beamlets defining a column, a beam stop array having a surface for blocking beamlets from reaching the target surface and an array of apertures in the surface for allowing the beamlets to reach the target surface, and a modulation device for modulating the beamlets to prevent one or more of the beamlets from reaching the target surface or allow one or more of the beamlets to reach the target surface, by deflecting or not deflecting the beamlets so that the beamlets are blocked or not blocked by the beam stop array. The modulation device comprises a plurality of apertures arranged in arrays for letting the beamlets pass through the modulation device, a plurality of modulators arranged in arrays, each modulator provided with electrodes extending on opposing sides of an aperture for generating a voltage difference across the aperture, and a plurality of light sensitive elements arranged in arrays, for receiving modulated light beams and converting the light beams into electric signals for actuating the modulators, wherein the light sensitive elements are located within the column, wherein the modulation device is subdivided into a plurality of alternating beam areas and non-beam areas, the arrays of modulators are located in the beam areas, and the arrays of light sensitive elements are located in the non-beam areas and are in communication with the modulators in an adjacent beam area.10-27-2011
20110215225OPTICAL RECEIVER DEVICE - An optical receiver device including: a light-receiving element having a first electrode acting as an outputting electrode and a second electrode coupled to a potential that is different from a ground potential; an amplifier device having an amplifier element, a connection terminal including a signal electrode and a ground electrode on an upper face thereof; a first conductor coupling a potential of the first electrode of the light-receiving element to the signal electrode, the first conductor being introduced from the upper face side of the amplifier device; and a second conductor coupling a potential of the second electrode of the light-receiving element to the ground electrode, the second conductor introduced from the upper face side of the amplifier device.09-08-2011
20110215224PHOTOELECTRIC CONVERSION APPARATUS - An apparatus includes a first photoelectric conversion element configured to convert light into a current by a photoelectric conversion, a first current amplification unit configured to amplify the current, a first current monitoring unit configured to monitor the amplified current amplified and output a monitor signal, and a first bias voltage setting unit configured to gain the monitor signal by a factor less than 1 and apply a reverse bias voltage to the first photoelectric conversion element according to the gained monitor signal.09-08-2011
20090250595SYSTEM FOR DETECTING ONE OR MORE PREDETERMINED OPTICALLY DERIVABLE CHARACTERISTICS OF A SAMPLE - A field use optical grain characterising system (10-08-2009
20110315857SOLAR CELL SYSTEM - Disclosed herein is a solar cell system including: a plurality of power generation panels that differ in the range of wavelengths of light they absorb from each other and convert light into power; a voltage detection section adapted to detect the voltage of power generated by each of the plurality of power generation panels; a reproduction section adapted to compare the voltages of the plurality of power generation panels detected by the voltage detection section so as to reproduce an audio or music signal appropriate to the comparison result; and an output section adapted to output audio or music reproduced by the reproduction section.12-29-2011
20110315856ANALOG SILICON PHOTOMULTIPLIER USING PHASE DETECTION - An analog silicon photomultiplier system includes at least one analog pixel comprising a plurality of analog photodiodes (APDs), and a capacitor, a signal generator, a phase detector, and a compensation network. The signal generator is configured to generate and propagate a sinusoidal signal concurrently along first and second transmission lines. A capacitor is loaded on the first transmission line when an APD corresponding to the capacitor detects a photon. The phase detector is coupled with the first and second transmission lines, determines a phase difference between the first transmission line and the second transmission line and calculates a number of APDs that have fired from the phase difference. The compensation network is coupled with the second transmission line and the phase detector, and comprises a plurality of compensation capacitors, wherein the compensation capacitors are loaded on the second transmission line in proportion to the number of APDs that have fired.12-29-2011
20120001058MULTI-APERTURE VISUAL SENSOR WITH HYPERACUITY - A multi-aperture passive light sensor and method for detecting motion and edges of an object are described. The sensor may include at least two focusing lenses mounted on a spherical surface for focusing light from the object into the ends of optical fibers, the optical axis for each lens diverging at an angle from that of adjacent lenses depending on the intended application. Each lens is located closer to the end of its associated optical fiber, which is disposed coaxially to the optical axis of the lens, than the natural focal plane of the lens, thereby blurring the light received from the object. Light exiting the fibers is detected by photosensors located at the opposite end of each optical fiber, and voltage differences between the voltages generated in response to the light intensity impinging on the photosensors are used to detect motion and edges of the object.01-05-2012
20110155894PROXIMITY SENSOR - A proximity sensor is disclosed. The proximity sensor may be incorporated as part of a water delivery device. A holder which aligns an optical source and sensor of the proximity sensor is disclosed.06-30-2011
20120205521DUAL-POLARIZATION QPSK DEMODULATOR - In an embodiment, a DP-QPSK demodulator includes first, second and third polarization beam splitters (“PBSs”) and first, second and third half waveplates (“HWPs”). The first HWP is positioned to receive an output of the first PBS. The second PBS is positioned to receive an output of the first HWP. The second HWP is positioned to receive an output of the second PBS. The third PBS is positioned to receive an output of the second HWP. The third HWP is positioned to receive an output of the third PBS.08-16-2012
20110049334OPTICAL MODULE - An optical module transmits optical signals through a plurality of optical fibers in parallel. The optical module includes a substrate including an electrode pattern, a plurality of optical elements mounted on the electrode pattern of the substrate, and an electronic device mounted on the electrode pattern of the substrate and electrically connected to the optical elements. The optical elements and the electronic device are arranged on the substrate close to each other such that lengths of a plurality of transmission lines each transmitting a signal between each of the optical elements and the electronic device are minimized.03-03-2011
20100207012Multi-stage waveform detector - A waveform detector may include multiple stages.08-19-2010
20120132788RADIATION SENSOR - A radiation sensor is provided comprising: one or more first pixels and one or more second pixels. A first optical element is provided over the first and second pixels, having a first field of view. A second optical element is provided over the one or more second pixels, having a second field of view. The second optical element is positioned between the first optical element and the one or more second pixels, wherein the first field of view is substantially narrower than, and lies substantially within, the second field of view.05-31-2012
20100308210PHOTOELECTRONIC SENSOR SYSTEM - The present invention relates to a photoelectronic sensor which collectively adjusts light emission intensity of plural light emitting elements and light reception sensitivity of plural light receiving elements automatically or manually.12-09-2010
20120228477DETECTOR - A detector contains a housing with at least one window for allowing radiation to enter, at least one outlook sensor for sensing entered radiation, a unit for processing outlook sensor signals, and outlook mirrors that are shaped and mounted in the housing for reflecting onto the outlook sensor radiation from outside detection zones better than radiation from elsewhere. At least some of the outlook mirrors face the window and in operative orientation neighbor each other vertically. The detector further contains one or more window sensors for sensing radiation indicative of the window being masked or having been damaged and a unit for processing window sensor signals. A gap between at least two of the outlook mirrors allows radiation to travel between the window and at least one window sensor or accordant window sender or both.09-13-2012
20120261557DISPLAY DEVICE - Provided is a display device that includes an optical sensor having a high sensitivity in which a potential difference of an accumulation node due to an illuminance difference on a light receiving surface after boosting is set greater than a potential difference of the same at an end of an integration period. The display device includes an optical sensor in a pixel region. The optical sensor includes a diode D10-18-2012
20120298843NANOWIRE PHOTO-DETECTOR GROWN ON A BACK-SIDE ILLUMINATED IMAGER SENSOR - An embodiment relates to a device comprising a substrate having a front side and a back-side that is exposed to incoming radiation, a nanowire disposed on the substrate and an image sensing circuit disposed on the front side, wherein the nanowire is configured to be both a channel to transmit wavelengths up to a selective wavelength and an active element to detect the wavelengths up to the selective wavelength transmitted through the nanowire.11-29-2012
20120267514OPTICAL SENSING DEVICE FOR DETECTING AMBIENT LIGHT IN MOTOR VEHICLES - An optical sensor device for the detection of ambient light is adapted to be coupled to a pane (10-25-2012
20120267513Light-Sensing Apparatus And Method Of Driving The Same - According to an example embodiment, a light-sensing apparatus may include an array of light-sensing pixels, a first gate driver, and a signal output unit. Each of the light-sensing pixels may include a light sensor transistor configured to sense light, a switch transistor configured to output a light-sensing signal from the light sensor transistor, and a conductive light-shielding film on a light-incident surface of the switch transistor. The light sensor transistor and the switch transistor may have the same oxide semiconductor transistor structure. The first gate driver may be configured to provide a gate voltage and a negative bias voltage to each of the light-sensing pixels. The signal output unit may be configured to receive the light-sensing signal from each of the light-sensing pixels and output a data signal.10-25-2012
20100230581LIGHT SENSOR - Light sensor, comprising a non-translucent layer (09-16-2010
20120091321OPTICAL SENSOR AND DISPLAY APPARATUS - Provided are an optical sensor having a wider dynamic range with reduced temperature dependence, and a display apparatus in which these optical sensors are used. An optical sensor includes an accumulation node (INT); a reset signal line (RST); a readout signal line (RWS); a photodiode (D04-19-2012
20120091320CONFIGURABLE PHOTO DETECTOR CIRCUIT - A configurable photo detector circuit comprises a photo detector array including a plurality of photo detectors coupled to a plurality of amplifiers. A method for programming a detection pattern of the configurable photo detector circuit comprises selecting a first detection pattern for the photo detector array, generating first signals to create the first selected detection pattern, and applying the first generated signals to the photo detector circuit to implement the first selected detection pattern.04-19-2012
20120091318BEAMLET BLANKER ARRANGEMENT - The invention relates to a charged particle multi-beamlet lithography system for exposing a target using a plurality of beamlets. The system has a beam generator, a beamlet blanker, and a beamlet projector. The beam generator is configured to generate a plurality of charged particle beamlets. The beamlet blanker is configured to pattern the beamlets. The beamlet projector is configured to project the patterned beamlets onto the target surface. The system further has a deflection device. The deflection device has a plurality of memory cells. Each memory cell is provided with a storage element and is connected to a switching electrode of a deflector.04-19-2012
20130015331DEVICE AND METHOD FOR DETECTING LIGHTAANM Birk; HolgerAACI MeckesheimAACO DEAAGP Birk; Holger Meckesheim DEAANM Seyfried; VolkerAACI NusslochAACO DEAAGP Seyfried; Volker Nussloch DE - A device for detecting light includes at least one silicon photomultiplier (SiPM) having an array of a plurality of single-photon avalanche diodes (SPADs), the array being larger in area than an incident light. The device is configured so as to at least one of activate and analyze only the SPADs upon which a specific minimum intensity of light impinges.01-17-2013
20130015330DEVICE FOR AMBIENT LIGHT COMPENSATION FOR OPTICAL SENSORS EXPOSED TO BOTH USEFUL LIGHT AND AMBIENT LIGHTAANM Budde; WolframAACI DortmundAACO DEAAGP Budde; Wolfram Dortmund DEAANM Busser; WolfgangAACI MandelAACO DEAAGP Busser; Wolfgang Mandel DE - The device for ambient light compensation for use in optical sensors exposed to both useful light and ambient light comprises at least one first photodiode and at least one second photodiode, the at least one first photodiode being adapted to be exposed to substantially the same useful light and ambient light as the at least one second photodiode. The device further comprises a current mirror circuit having an input and an output, the at least one first photodiode being connected to the input of the current mirror circuit, and the at least one second photodiode being connected to the output of the current mirror circuit. The current mirror circuit comprises a lowpass filter connected between the input and the output of the current mirror circuit. The output of the current mirror circuit provides an output signal representing the useful signal compensated for ambient light.01-17-2013
20110147568High density array module and connector - In a preferred embodiment of the invention, a high density interconnect structure is provided comprised of a dielectric structure and one or more compressible conductive member for the electrical connection of a plurality of inputs and outputs of a three-dimensional module to external circuitry using a compression frame and a flex connector. The compression frame has a surface equal to or less than the surface area of the module surface upon which it is mounted and permits a plurality of modules to be “butted” together to provide, for instance, a buttable focal plane array module comprising a mosaic of buttable focal plane arrays.06-23-2011
20130020472PHOTODETECTOR DEVICE - Provided is a photodetector device for detecting light intensity based on a detection signal of a difference circuit, the photodetector device including: a first light receiving element which generates an electric charge based on incident light; a second light receiving element, which includes a light blocking part for blocking incident light and generates an electric charge being a reference; and a storage detection circuit for detecting that an output voltage of the first light receiving element or the second light receiving element has reached a predetermined potential and outputting the detection signal when the difference does not reach a predetermined value even though sufficient incident light is provided.01-24-2013
20130200254A PRESENCE DETECTION SYSTEM AND A LIGHTING SYSTEM - A presence detection system (08-08-2013
20130175434INDICATOR TESTING SYSTEM - An indicator testing system for testing a plurality of indicators disposed on an electronic product and adapted to display a status includes a plurality of light sensors, a holder for holding the light sensors, and a signal processing module. The light sensors correspond in position to the indicators on the electronic product, respectively, and each generate a corresponding light testing signal whereby the signal processing module generates a brightness testing signal related to each indicator. The indicator testing system speeds up an indicator test, enhances the precision of the indicator test, and ensures the quality of the electronic product.07-11-2013
20130175435DEVICE FOR DETECTING AN OBJECT USING SPAD PHOTODIODES - The disclosure relates to a method for detecting the presence of an object near a detection device, comprising: emitting pulses of an incident photon beam, detecting photodiodes which trigger avalanche after the reception by the photodiode of at least one photon of a reflected photon beam produced by a reflection of the incident beam on an object near the detection device, determining a distance between the photodiodes and an object in a detection area, as a function of the time between a transmit time of the incident beam and avalanche triggering times of the photodiodes, and correcting the distance determined as a function of a calibration measurement obtained in the absence of object in the detection area, to compensate for photon reflections on a transparent plate arranged between the photodiodes and the detection area.07-11-2013
20080217515ILLUMINANCE DETECTION APPARATUS AND SENSOR MODULE - A silicon substrate is used as a substrate body of a wiring substrate and also, plural light receiving elements for outputting a detection signal according to illuminance of light at the time of receiving light applied from the outside, an amplification circuit element for amplifying the detection signal outputted by the light receiving elements, a changeover switch element for performing switching as to whether or not the light receiving element is electrically connected to the amplification circuit element, and a resistor and a capacitor electrically connected to the amplification circuit element are disposed on the wiring substrate.09-11-2008
20130099102INTEGRATING SPHERE PHOTOMETER AND MEASURING METHOD OF THE SAME - Provided are an integrating sphere photometer and a measuring method of the same. The integrating sphere photometer includes a plurality of photodetectors, an integrating sphere having through-holes formed to correspond to the photodetectors, baffles disposed inside the integrating sphere in front of the photodetectors to be spaced apart from the photodetectors, a photometer disposed at a through-hole, and an adjustment unit adjusting output signals of the photodetectors to have the same output signal with respect to light illuminated from a point-like standard light source disposed at a center region in the integrating sphere.04-25-2013
20130099100SILICON PHOTOMULTIPLIER AND READOUT METHOD - Silicon photomultiplier and readout method A silicon photomultiplier device is provided which comprises a first electrode arranged to provide a bias voltage to the device, a second electrode arranged as a ground electrode for the device, and a third electrode arranged to provide an output signal from the device using the second electrode as the output signal ground.04-25-2013
20130112855AMBIENT LIGHT SENSING SYSTEM AND METHOD - A sensor for range finding and ambient light measurement wherein the sensor includes an array of pixels capable of sensing illumination in a plurality of wavelengths and generating a response thereto for each wavelength; the sensor including an ambient light sensing system which includes a module for adjusting the response from the ambient light sensor, such that the response for each wavelength is independent of the wavelength of the illumination.05-09-2013
20130126713COMMUNICATION APPARATUS AND METHOD - A detection system for use with a communications system and an associated communication systems, methods, portable electronics devices and geolocation and/or reporting devices, the detection system having at least one radiation detector for receiving a radiation signal, wherein the at least one radiation detector includes a plurality of sensing elements, and the detection system is configured to detect the radiation signal using differing subsets of sensing elements at differing times and determine data encoded in the radiation signal based on the radiation detected by the different subsets of sensing elements.05-23-2013
20130140440PHOTOELECTRIC CONVERTING APPARATUS - A photoelectric converting apparatus has: a first photoelectric conversion element for outputting a current to a first terminal by a photoelectric conversion; a first detecting unit for detecting an electric potential of the first terminal of the first photoelectric conversion element; a first feedback unit for feeding back a signal based on the electric potential detected by the first detecting unit to the first terminal of the first photoelectric conversion element and output a current based on the electric potential of the first terminal of the first photoelectric conversion element to a first current output terminal; and a current supplying unit for supplying the current to the first terminal of the first photoelectric conversion element.06-06-2013
20080197270CONFIGURABLE PHOTO DETECTOR CIRCUIT - A configurable photo detector circuit includes a photo detector array having a plurality of photo detectors. A switching matrix includes a first plurality of inputs coupled to outputs of the plurality of photo detector, a second plurality of inputs, and a plurality of matrix outputs. A controller is coupled to the second plurality of inputs of the switching matrix for configuring the switching matrix. The controller is operable to receive programmed commands for configuring the switching matrix. An output block having a plurality of inputs is coupled to receive the plurality of matrix outputs and a plurality of outputs, wherein electrical signals from the plurality of photo detectors are directed to respective ones of the plurality of outputs based on the switching matrix.08-21-2008
20130099101RADIATION SENSOR - A radiation sensor of the type having a packaged radiation source and detector, which includes an isolator that blocks propagation within the package of radiation from the source to the detector, in order to improve signal to noise ratio of the sensor. The isolator is formed by appropriately formed surfaces of the package.04-25-2013
20130153754DEVICE HAVING SPAD PHOTODIODES FOR DETECTING AN OBJECT - The disclosure relates to a method for detecting the presence of an object near a detection device, comprising: reverse biasing single photon avalanche photodiodes, at a bias voltage greater than a breakdown voltage of a PN junction of each photodiode, emitting pulses of an incident photon beam, detecting photodiodes which avalanche trigger after the reception by the photodiode of at least one photon of a reflected photon beam produced by a reflection of the incident beam on an object near the detection device, determining the object presence as a function of the existence of at least one avalanche triggering in one of the photodiodes, and selecting a number of photodiodes to be reverse biased in relation to the detection device, as a function of a load of a circuit for generating the bias voltage.06-20-2013
20130153752ELECTRONIC DEVICE - An electronic device according to one or more embodiments of the invention comprises a plurality of first output lines and a plurality of current to voltage convertors. Current signals from a plurality of signal sources are output to the first output lines. Each of the current to voltage convertors are electrically connected to a corresponding one of the first output lines. The current to voltage convertor includes a first amplification unit. An offset reduction unit in a subsequent stage of the current to voltage convertor is provided for each of the first output lines.06-20-2013
20130153753LIGHT SENSING APPARATUS AND ADJUSTMENT METHOD THEREOF - A light sensing apparatus includes a light sensing module, a signal conversion module and a processing module. The light sensing module is configured to output a first and second sense signals according to a light intensity emitting thereon. The signal conversion module is electrically coupled to the light sensing module and configured to receive the first and second sense signals and output a sense value according to a relative difference between the first and second sense signals, The comparison module is electrically coupled to the signal conversion module and configured to adjust a light sensing characteristic of the light sensing module according to the sense value so as to adjust a light sensing characteristic of the light sensing module. An adjustment method for a light sensing apparatus is also provided.06-20-2013
20120273658MODULATION DEVICE AND CHARGED PARTICLE MULTI-BEAMLET LITHOGRAPHY SYSTEM USING THE SAME - The invention relates to a charged-particle multi-beamlet lithography system. The system comprises a beam generator for generating a plurality of beamlets, a beamlet blanker array for patterning the plurality of beamlets, an optical fiber arrangement, and a projection system. The beamlet blanker array comprises a substrate provided with a first area comprising one or more modulators and a second area free of modulators. The beamlet blanker array comprises one or more light sensitive elements, electrically connected to the one or more modulators, and arranged to receive light beams carrying pattern data. The optical fiber arrangement comprises a plurality of optical fibers for guiding the light beams carrying pattern data towards the one or more light sensitive elements. The projection of the optical fiber arrangement onto a surface of the beamlet blanker array in a direction perpendicular to the surface falls entirely within the second area.11-01-2012
20110233384GLARE REDUCTION APPARATUS - The invention provides a glare reduction apparatus disposed in an object illuminated by a light source. The glare reduction device includes an electro-optical device covering a surface of the object. A light sensing device is disposed on a first fixed point of the object. A controller is electrically coupled to the electro-optical device and the light sensing device, wherein the controller calculates a corresponding light sensing position of the electro-optical device according to a light sensing position of the light sensing device which directly receives light from the light source, to reduce the light transmittivity of the corresponding light sensing position of the electro-optical device to generate a light shielding region. The light shielding region attenuates the light from the light source to a second fixed point of the object.09-29-2011
20110303825Active Photosensing Pixel - An active photosensing pixel is disclosed, in which a two-terminal photosensing transistor has a first terminal coupled to a first node, a second terminal coupled to a first selection line and a control terminal connected to the second terminal. A driving transistor has a first terminal coupled to a first reference voltage, a second terminal coupled to an output line and a control terminal connected to the first node. A reset transistor has a first terminal connected to the first node, a second terminal coupled to a second reference voltage and a control terminal coupled to a second selection line.12-15-2011
20110309238MATERIALS, SYSTEMS AND METHODS FOR OPTOELECTRONIC DEVICES - A photodetector is described along with corresponding materials, systems, and methods. The photodetector comprises an integrated circuit and at least two optically sensitive layers. A first optically sensitive layer is over at least a portion of the integrated circuit, and a second optically sensitive layer is over the first optically sensitive layer. Each optically sensitive layer is interposed between two electrodes. The two electrodes include a respective first electrode and a respective second electrode. The integrated circuit selectively applies a bias to the electrodes and reads signals from the optically sensitive layers. The signal is related to the number of photons received by the respective optically sensitive layer.12-22-2011
20110309237LIGHT ABSORPTION AND FILTERING PROPERTIES OF VERTICALLY ORIENTED SEMICONDUCTOR NANO WIRES - A nanowire array is described herein. The nanowire array comprises a substrate and a plurality of nanowires extending essentially vertically from the substrate; wherein: each of the nanowires has uniform chemical along its entire length; a refractive index of the nanowires is at least two times of a refractive index of a cladding of the nanowires. This nanowire array is useful as a photodetector, a submicron color filter, a static color display or a dynamic color display.12-22-2011
20130187030SENSE CIRCUIT AND METHOD OF OPERATION THEREOF AND PHOTOELECTRIC CONVERSION ARRAY - A sense circuit includes a differential amplifier circuit including an inverting input section, a non-inverting input section and an output section, an electrical capacitor connected between the inverting input section and the output section, and a field effect transistor including a source, a drain, and a gate. One of the source and the drain is connected to the inverting input section, and the other of the source and the drain is connected to the output section. A reference potential is supplied to the non-inverting input section, and an output section of a photoelectric conversion cell having an added switching function is connected to the inverting input section.07-25-2013
20130187029PHOTODETECTOR CONTROL CIRCUIT - A photodetector control circuit in a photodetector for detecting light from a photodiode using a phototransistor and controls drive of the photodiode and detection of a current of the phototransistor has a received light amount detecting unit that detects a detection current, which flows through the phototransistor in accordance with a received light amount, by converting the detection current into a detection voltage, and compares the detection voltage with a reference voltage detected during reception of a reference light amount, to thereby detect a change in the received light amount, a diode current control unit for controlling a diode current that is caused to flow through the photodiode, and a control unit that detects a temperature based on a forward drop voltage of the photodiode and estimates a current change rate of the phototransistor based on the detected temperature.07-25-2013
20120085890Photodetector - An object is to reduce the size and manufacturing cost of a photodetector. In order to reduce the area where a visible light sensor and an infrared light sensor are provided, a first photodiode that detects visible light and a second photodiode that detects infrared light are arranged to overlap with each other so that visible light is absorbed first by the first photodiode, whereby significantly little visible light enters the second photodiode. Further, the first photodiode overlapping with the second photodiode is used as an optical filter for the second photodiode. Therefore, a semiconductor layer included in the first photodiode absorbs visible light and transmits infrared light, and a semiconductor layer included in the second photodiode absorbs infrared light.04-12-2012

Patent applications in class Plural photosensitive nonimage detecting elements

Patent applications in all subclasses Plural photosensitive nonimage detecting elements