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Photocell controlled circuit

Subclass of:

250 - Radiant energy

250200000 - PHOTOCELLS; CIRCUITS AND APPARATUS

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
250208100 Plural photosensitive image detecting element arrays 757
250214000 Special photocell or electron tube circuits 415
250208200 Plural photosensitive nonimage detecting elements 117
250206100 Having means to generate positional information in at least one plane of a target moving relative to one or more photodetectors 39
250207000 Electron multiplier 25
250564000 With circuit for evaluating a fluent material 6
250555000 Including coded record 2
20110024652OPTICAL ENCODER DEVICE - An optical encoder device is provided, in which first light transmissive slits are formed in a movable slit plate and second light transmissive slits are formed in a stationary slit plate. The number of the second light transmissive slits is defined as S. The second light transmissive slits are formed in the stationary slit plate such that when one of the second light transmissive slits is optically coincident with one of the first light transmissive slits, the remaining S-1 second light transmissive slits are shifted in position from other first light transmissive slits corresponding to the remaining second light transmissive slits by S-1 phase differences.02-03-2011
20090166569DEVICE AND METHOD FOR THE ACQUISITION AND AUTOMATIC PROCESSING OF DATA OBTAINED FROM OPTICAL CODES - The device for the acquisition and automatic processing of data obtained from optical codes comprises a CMOS optical sensor; an analog processing unit connected to the optical sensor; an analog/digital conversion unit connected to the analog processing unit; a logic control unit connected to the CMOS optical sensor, the analog processing unit and the analog/digital conversion unit; and a data-processing unit connected to the logic control unit and the analog/digital conversion unit. The CMOS optical sensor and at least one of the analog processing, analog/digital conversion, logic control and data processing units are integrated in a single chip. The data processing unit processes the digital signals corresponding to the image acquired by the CMOS sensor and extracts the optically coded data.07-02-2009
Entries
DocumentTitleDate
20100051783TOOL SETTING OR ANALYSIS DEVICE - A tool setting or tool analysis device for a machine tool comprises a light source for producing a light beam. A light receiver receives the light beam and produces a signal indicative of the amount of light received. This is analyzed by a main analysis circuit to generate a trigger signal to a machine controller when the beam is at least partially occluded. To provide fail-safe operation should the main circuit not recognize the tool, a back-up trigger signal is produced after a delay by a delay circuit. In one preferred form, the back-up trigger signal may oscillate, providing repeated edges which can ensure fail-safe operation even if the machine controller suffers from a blind window and therefore misses the initial trigger signal.03-04-2010
20080265133Power Supply Control Circuit with Optical Feedback - An integrated circuit is disclosed that integrates a low current, high speed optical receiver with the primary side control functions of the power supply. This is further combined with an optical emitter to create a single component for feedback and control, providing improved performance and manufacturing. A method of providing feedback for the power supply using such an integrated optically coupled control circuit is also disclosed.10-30-2008
20100140452Dual Mode Source Follower for Low and High Sensitivity Applications - In certain embodiments, a unit cell is provided. The unit cell may include a high sensitivity path and a low sensitivity path. The high sensitivity path may include a first transistor and a first switch. The first switch may couple an output node to the first transistor. The low sensitivity path may include a capacitor. A second switch may couple the high sensitivity path to the low sensitivity path. A third switch may couple the high sensitivity path and the low sensitivity path to a voltage node.06-10-2010
20100140451PHYSIOLOGICAL SENSOR WITH BOOSTER CIRCUIT - A physiological sensor includes a light source in optical communication with a light detector. A controller is in communication with the light detector via a connector. A booster circuit is in communication with the light detector and the connector. The booster circuit may be configured to buffer signals generated by the light detector and reduce an input capacitance on either the controller or terminals of the connector. In various embodiments, the booster circuit may be disposed on the connector for a reusable cable or a disposable sensor pad.06-10-2010
20130032691IMAGE SENSOR - An image sensor for reducing a sampling time by shortening a stabilization duration is provided. The image sensor includes a pixel unit, a sampling unit sampling a signal from an output node of the pixel unit, a sinking unit sinking current from the output node of the pixel unit, and a current controller controlling the amount of current in the sinking unit.02-07-2013
20120205519Method for Generating Images with an Expanded Dynamic Range and Optical Device for Carrying Out Such a Method, in Particular a Laser Scanner Microscope - Method and apparatus for generating an at least two-dimensional image of at least part of a sample. The method involves scanning the sample. Acquiring at least one light signal by an optoelectronic detector for different areas of the sample. Converting the light signal into an electrical signal. Distributing the electrical signal onto several parallel evaluation channels whose signal evaluations differ from each other so that their dynamic ranges are different. Generating a result signal in each evaluation channel. Selecting at least one of the result signals as a function of one of the result signals in order to generate the image for the sample range concerned. It is also possible to generate one intermediate result signal for each channel, typically from the respective actual result signal and one or more other sources. Thus the signal selection depending on both the result signals and the intermediate result signals are possible.08-16-2012
20130087682PHOTOELECTRIC CONVERSION DEVICE, IMAGING DEVICE, AND METHOD FOR DRIVING PHOTOELECTRIC CONVERSION DEVICE - A photoelectric conversion device includes, in the following order: a first electrode; an electron blocking layer; a photoelectric conversion layer containing a merocyanine dye; a hole blocking layer; and a transparent electrode as a second electrode, and an absorption maximum wavelength in a thin film absorption spectrum of the photoelectric conversion layer containing a merocyanine dye is within a range of from 400 to 520 nm.04-11-2013
20120181417METHOD AND IMAGE SENSOR WITH EXTENDED PIXEL DYNAMIC RANGE INCORPORATING TRANSFER GATE WITH POTENTIAL WELL - A charge transfer transistor includes: a first diffusion region and a second diffusion region; a gate for controlling a charge transfer from the first diffusion region to the second diffusion region by a control signal; and a potential well incorporated under the gate, wherein the first diffusion region is a pinned photodiode. A pixel of an image sensor includes: a photodiode for generating and collecting a photo generated charge; a floating diffusion region for serving as a photo generated charge sensing node; a transfer gate for controlling a charge transfer from the photodiode to the floating diffusion region by a control signal; and a potential well incorporated under the transfer gate.07-19-2012
20090302200IMAGE SENSING DEVICE AND IMAGING SYSTEM - An image sensing device comprises a pixel array, a plurality of column amplification units each including a setting unit, and a plurality of reference signal supply units, wherein a first reference signal and a second reference signal are common to a plurality of columns in the pixel array, each of the plurality of column amplification units amplifies a difference between the first reference signal and the second reference signal to output the amplified difference, or amplifies each of the first reference signal and the second reference signal to output the amplified first reference signal and the amplified second reference signal, and the setting unit sets, in the column amplification unit, an amplification factor which is determined in accordance with a signal output from each of the plurality of column amplification units so as to reduce variations of the amplification factor between the plurality of column amplification units.12-10-2009
20120112037THREE-DIMENSIONAL IMAGING DEVICE - An image capture device according to the present invention includes an imaging lens 05-10-2012
20090266973VERY SMALL IMAGE SENSOR - An image sensor formed in a semiconductor stack of a lower region of a first conductivity type and of an upper region of a second conductivity type, including: a photodiode formed of a first portion of the stack; a read area formed of a second portion of the stack; a trench with insulated walls filled with a conductive material, the trench surrounding the photodiode and the read area and being interrupted, all along its height, on a portion facing the photodiode and the read area; and first connection mechanism associated with the conductive material of the trench and capable of being connected to a reference bias voltage.10-29-2009
20130062502PHOTODETECTOR AND METHOD FOR MANUFACTURING THE SAME - A photodetector includes a substrate and an insulating arrangement formed in the substrate. The insulating arrangement electrically insulates a confined region of the substrate. The confined region is configured to generate free charge carriers in response to an irradiation. The photodetector further includes a read-out electrode arrangement configured to provide a photocurrent formed by at least a portion of the free charge carriers that are generated in response to the irradiation. The photodetector also includes a biasing electrode arrangement that is electrically insulated against the confined region by means of the insulating arrangement. The biasing electrode arrangement is configured to cause an influence on a spatial charge carrier distribution within the confined region so that fewer of the free charge carriers recombine at boundaries of the confined region compared to an unbiased state.03-14-2013
20090236496PHOTOELECTRIC CONVERSION DEVICE - Objects are to suppress reduction in current output from a photoelectric conversion device and to prevent ESD from occurring in the photoelectric conversion device without greatly increasing the number of steps for manufacturing the photoelectric conversion device. The photoelectric conversion device includes a photodiode generating current by light irradiation; an amplifier circuit including at least one MOS transistor for amplifying the current; and at least one diode which is connected in series with the photodiode in a path of the current generated in the photodiode or a path of the current amplified by at least one MOS transistor so that a bias direction of the diode is opposite to that of the photodiode. Each of the photodiode and the diode includes a stack of a plurality of semiconductor films.09-24-2009
20130068926OPTICAL SENSOR AND ELECTRONICS DEVICE - When no light enters a photodiode, a second current mirror circuit operates. Consequently, a current that decreases a potential difference between two terminals of a light-receiving element flows into a transistor of the second current mirror circuit and an output of an optical sensor becomes low. Meanwhile, when light enters the photodiode, a transistor of the light-receiving element is turned on and the second current mirror circuit stops operating. Consequently, the current that decreases the potential difference between the two terminals of the light-receiving element is stopped in the transistor of the second current mirror circuit and the output of the optical sensor becomes high. This makes it possible to provide an optical sensor that has a circuit in which an output of a light-receiving element does not depend on a photocurrent and that is capable of operating at a high speed.03-21-2013
20130068928HIGH-SPEED ANALOG PHOTON COUNTER AND METHOD - A high speed analog photon counter and method is provided. In one aspect, the method includes delivering an electric charge to a circuit of the high speed analog photon counter through a current source of the circuit. The method also includes accumulating the electric charge in a capacitor of the circuit electrically coupled to the current source. The method further includes comparing the electric charge accumulated in the capacitor of the circuit with a reference voltage through a comparator of the circuit electrically coupled to an output of the capacitor. The output of the capacitor of the circuit is coupled to an input of the comparator of the circuit, and the reference voltage is coupled to another input of the comparator of the circuit. The method furthermore includes resetting the capacitor of the circuit when the electric charge accumulated in the capacitor of the circuit matches the reference voltage.03-21-2013
20130068927SCANNING OPTICAL SYSTEM MANUFACTURING METHOD, BEAM INSPECTION METHOD, AND BEAM INSPECTION APPARATUS - A scanning optical system manufacturing method includes receiving a scanning beam, emitted from a scanning unit including an incident optical system and a deflecting device and passed through an image-forming optical system, in an area having a width in the main scanning direction narrower than a spot diameter of the scanning beam by a light-receiving unit configured to be capable of being displaced at each image height position in the main scanning direction, calculating, based on an output of the light-receiving unit, a peak light quantity at each image height position of the scanning beam, smoothing distribution data of the peak light quantity at each of the image height position acquired by the calculating, and determining, based on the data acquired by the smoothing, either nondefective/defective states of the scanning unit and the image-forming optical system or a nondefective/defective state of only the image-forming optical system.03-21-2013
20130214123INTERFERENCE FILTER, OPTICAL MODULE, AND ELECTRONIC APPARATUS - An interference filter includes a first substrate, a second substrate opposed to the first substrate, a first optical film provided to the first substrate, and a second optical film provided to the second substrate and opposed to the first optical film, at least one of the first and second optical films has a metal film having a reflecting property and a transmitting property with respect to light in a desired wavelength band, a surface and an edge portion of the metal film are covered by a barrier film, and the barrier film is formed of a material having conductivity.08-22-2013
20090242734CURRENT DETECTION CIRCUIT, PHOTORECEIVER USING THE SAME, LIGHT EMISSION CONTROL DEVICE, AND ELECTRONIC DEVICE USING THE SAME - A first transistor may be provided on a current path of a photo transistor. The bias current path may include a bias switch and a first bias resistor connected in series and is provided in parallel with a main current path including the phototransistor. A second transistor may configure a current mirror circuit with the first transistor, and generates second current formed by multiplying the first current flowing in the first transistor by a predetermined factor. The second current is charged in the charging capacitor and converted into a voltage. The bias current path turns on prior to the start of light reception of the phototransistor and turns off after a predetermined period has elapsed from the start of light reception of the phototransistor.10-01-2009
20090152443PHOTO RELAY - A LED is provided to emit a light signal corresponding to an input signal. A PD receives the light signal, and generates a photovoltaic output. A MOSFET receives the photovoltaic output. A FET is provided. A first electrode of the FET is connected to the gate of the MOSFET. A second electrode of the FET is connected to a cathode of the PD through a resistor. A control electrode of the FET is connected to the cathode of the PD. A transistor is provided. A first electrode of the transistor is connected to the gate of the MOSFET. A second electrode of the transistor is connected to the source of the MOSFET. A control electrode of the transistor is connected to the second electrode of the FET. A diode is connected between the second electrode of the FET and the second electrode of the transistor.06-18-2009
20110260034PHOTO DETECTION DEVICE - A photo detection device, which is disposed in a vehicle, includes a first photo detection element that detects light and a first signal processing unit that performs a predetermined process based on a detection result of the first photo detection element. The photo detection device also includes a first board on which the first photo detection element is mounted and a second board on which the first signal processing unit is mounted. Additionally, the photo detection device includes a holding member that holds the first board and the second board and a housing that accommodates the holding member. The holding member holds the first board and the second board such that the second board is arranged in a second plane different from a first plane in which the first board is arranged.10-27-2011
20080277565Optical fiber for optical power transmission - An optical fiber adapted to carry optical power for powering an electrical device and also optionally adapted to carry optical data for signal processing. The optical fiber capable of carrying both optical data and optical power includes a central data waveguide region that carries data light and an annular power waveguide region concentrically surrounding the data waveguide region and adapted to carry relatively large amounts of optical power. A first annular isolation region between the data and power waveguide regions and that includes microstructures serves to optically isolate the waveguide regions. An outer annular isolation region serves to confine power light to the power waveguide region and contributes to the bend-resistance of the optical fiber. An optical power and optical data distribution system that utilizes the optical fiber is also described.11-13-2008
20100090091METHOD AND DEVICE FOR READING ELECTRICAL CHARGES PRODUCED BY A PHOTO-DETECTOR, AND DETECTOR COMPRISING SUCH DEVICES - A method of reading electrical charges produced by a photo-detector of a photo-detector matrix includes collecting and storing electrical charges produced by the photo-detector in a first capacitive element, transferring the charges stored in the first capacitive element to a second capacitive element, and reading the voltage at the terminals of the second capacitive element. The transfer followed by the reading is carried out in at least two phases: at least one first phase taking place during the collection and storage of the charges in the first capacitive element, and a second phase taking place at the end of the collection and storage of the electrical charges in the first capacitive element.04-15-2010
20090152442Device for transferring light signals and corresponding method - To ensure an energy-efficient transfer of light signals between two elements of a machine which are movable relative to one another, a device and a method for transferring light signals between such elements is provided. A first element has a plurality of light sources for delivering light signals and a second element has at least one photoreceiver for receiving the light signals. A unit causing the turning on or off is configured such as to effect a turning on or off of only one portion of the light sources.06-18-2009
20090250593SAFETY SYSTEM FOR A VEHICLE WITH OPTICAL SIGNAL TRANSMISSION - A safety system for a vehicle is provided, which comprises signalling means associated with a seat of the vehicle for emitting an optically detectable signal carrying information related to the seat and detecting means for remotely detecting the optically detectable signal and for providing a corresponding signal to a control unit.10-08-2009
20090189054SYSTEM AND METHOD INCLUDING A PREALIGNER - A system and method for prealigning a substrate. One embodiment provides a rotor configured to rotate a carrier around a rotation axis in response to a rotation signal. The carrier includes a main surface substantially perpendicular to the rotation axis. The substrate is disposable on the carrier. The substrate includes a main surface and a mark such that an orientation of the substrate with respect to the rotation axis is detectable. An electromagnetic radiation source is configured to illuminate the main surface of the substrate with electromagnetic radiation. An optical/electrical converter is responsive to the electromagnetic radiation reflected back from the main surface, detecting the mark of the substrate and providing a sensing signal. A controller is configured to receive the sensing signal and providing the rotation signal.07-30-2009
20110139960Optical receiver - An optical receiver suitable for connecting to a photodiode generating a photocurrent with a sensing resistor and a diode circuit in parallel with the sensing resistor to limit the voltage across the sensing resistor. The diode circuit allows for a larger resistor providing greater sensitivity without risking violating the necessary headroom available to the photodiode.06-16-2011
20080265134Optical unit, solid-state image sensing device and electronic apparatus comprising same - A camera module 10-30-2008
20090283662IMAGE SENSOR PACKAGE, CAMERA MODULE HAVING SAME AND MANUFACTURING METHOD FOR THE SAME - An exemplary image sensor package includes a substrate, an imaging area, a circuit layer and two passive components. The substrate has a first surface and a second surface, which are opposite to each other. An image sensing area is formed on the first surface of the substrate and a circuit layer is formed on the second surface of the substrate. The passive components opposite to the image sensing area are soldered to the circuit layer of the second surface.11-19-2009
20090272878PHOTODETECTION CIRCUIT - This photodetecting circuit 11-05-2009
20130099091DEVICE HAVING AN AVALANCHE PHOTO DIODE AND A METHOD FOR SENSING PHOTONS - A semiconductor device that may include an avalanche photodiode (APD), the APD may include: a first doped region of a first polarity; a buried guard ring of a second polarity, the second polarity is opposite to the first polarity, the buried guard ring is spaced apart from the first doped region and is positioned below the first doped region; a well of the second polarity, wherein the well interfaces the first doped region to form a p-n junction; and a second doped region of the second polarity, the second doped region is spaced apart from the first doped region.04-25-2013
20090289170RADIATION DETECTION APPARATUS AND RADIATION DETECTION SYSTEM - A radiation detection apparatus to detect radiation. A substrate (11-26-2009
20090166511IMAGE SENSOR MODULE HAVING ELECTRIC COMPONENT AND FABRICATION METHOD THEREOF - An image sensor module capable of facilitating an electrical and mechanical connection of an electric component and a fabrication thereof are disclosed. The image sensor module includes a sensor chip; at least one lens disposed above the sensor chip; at least one electric component disposed with respect to the at least one lens to adjust optical characteristics of the at least one lens; a housing accommodating and closing up the sensor chip, the at least one lens and the at least one electric component, and having an opening to expose the at least one lens to an outside thereof; and a wiring part longitudinally disposed on an inner surface of the housing, and including at least one conducting wire having a first connecting terminal exposed to the outside of the housing to allow the at least one conducting wire to electrically connect a terminal pad of the at least one electric component with an external electronic device and a second connecting terminal connected to the terminal pad of the at least one electric component.07-02-2009
20080251691Imaging Device and Imaging Device Drive Method - The problem of the invention is to improve S/N and provide a high-sensitivity imaging device. The CMOS image sensor includes multiple pixels arranged in a two-dimensional array, where each pixel includes a photodiode PD that receives light to produce charge, a capacitance element FD, and a transfer transistor M10-16-2008
20080230679INTEGRATED PHOTORECEPTOR CIRCUIT AND OPTOELECTRONIC COMPONENT INLCUDING THE SAME - The integrated photoreceptor circuit includes a photosensitive area for picking up light and a processing unit area for processing the signals provided by the photosensitive area. This photoreceptor circuit includes electric contact pads, which are arranged symmetrically solely on the side of the processing unit area, which is juxtaposed with the photosensitive area. The integrated photoreceptor circuit is mounted on a first portion of a flexible substrate. The contact pads of the integrated photoreceptor circuit are electrically connected to electrical connection pads of the printed circuit of the flexible substrate. A second portion of the flexible substrate carries electrical connection terminals, which are connected to the connection pads via conductive paths, arranged in part on a connecting portion between the first and second portions. A through aperture in the first portion may be provided opposite the photosensitive area only of the photoreceptor circuit.09-25-2008
20080302949Photosensors Including Photodiode Control Electrodes and Methods of Operating Same - A sensor includes a substrate, a floating diffusion node in the substrate, a photodiode in the substrate laterally spaced apart from the floating diffusion region and a transfer transistor coupling the photodiode and the floating diffusion region. The sensor further includes a photodiode control electrode disposed on the photodiode and configured to control a carrier distribution of the photodiode responsive to a control signal applied thereto. The floating diffusion region may have a first conductivity type, the photodiode may include a first semiconductor region of a second conductivity type disposed on a second semiconductor region of the first conductivity type, and the photodiode control electrode may be disposed on the first semiconductor region. The photodiode may be configured to receive incident light from a side of the substrate opposite the photodiode control electrode. The transfer transistor may include a gate electrode on a channel region in the substrate and the photodiode control electrode and the transfer transistor gate electrode may be separately controllable. In further embodiments, the photodiode control electrode comprises an extension of the transfer transistor gate electrode.12-11-2008
20080272278Solar Powered Light - A solar lighting fixture and method thereof, is provided which comprises an outer cover lens containing a plurality of gripping protrusions that is coupled to a housing. The housing, and outer cover lens being made of hard, durable and resilient poly-carbonate like material which extends the longevity of the outer lens 11-06-2008
20080265135Multi-stage waveform detector - A waveform detector may include multiple stages.10-30-2008
20080272279Method and apparatus for producing an indication of solar panel condition - A method and apparatus for producing an indication of solar panel condition is disclosed. The method involves receiving operating condition signals including an irradiance signal representing electromagnetic radiation received by the solar panel, and an age signal representing age of the solar panel. The method also involves receiving a power signal representing actual power output from the solar panel and producing a power estimate in response to the operating condition signals and irradiance and age adjustment factors. The power estimate represents an expected power output from the solar panel and the adjustment factors are for adjusting the irradiance signal and the age signal respectively. The method further involves causing a warning signal to be generated in response to a difference between the power signal and the power estimate.11-06-2008
20090026350DETERMINATION OF LOW CURRENTS WITH HIGH DYNAMIC RANGE FOR OPTICAL IMAGING - In optical tomography, a wide dynamic range is necessary while measuring currents. According to an exemplary embodiment of the present invention, the currents are measured by counting the integration time and outputting a measurement result on the basis of the counted integration time, if the integrated current exceeds a threshold value before expiration of a maximum integration time.01-29-2009
20090184235MEROCYANINE DYE AND PHOTOELECTRIC CONVERSION DEVICE - A merocyanine dye is provided. The merocyanine dye is represented by formula (1).07-23-2009
20090184234METHOD FOR ADJUSTING POSITION OF LASER EMITTING DEVICE - Performed is a process of setting, on a mounting table, an adjustment substrate, which is provided with a slit of a preset width extended toward a center from a peripheral portion of the adjustment substrate; irradiating the laser beam toward a light receiving surface of a light energy measuring device, which is disposed on a front surface side of the adjustment substrate, from a rear surface side of the adjustment substrate through the slit; and measuring a variation in an energy amount of the laser beam irradiated onto the light receiving surface by the light energy measuring device while moving the laser emitting device in the optical axis direction, and adjusting a position of the laser emitting device in the optical axis direction to a desired position based on the variation in the energy amount on the light receiving surface.07-23-2009
20090140123PHOTOELECTRIC CONVERSION DEVICE, IMAGING DEVICE AND PHOTOSENSOR - A photoelectric conversion device is provided and includes a photoelectric conversion layer containing a compound represented by the following formula (1). Formula (1):06-04-2009
20090014626STREET LAMP - A street lamp includes a lamp holder; a light generating unit, a brightness measuring unit and a display unit. The light generating unit is arranged on the lamp holder for emitting light. The brightness measuring unit is arranged on the lamp holder and exposed to light radiation of the light generating unit. The brightness measuring unit is configured for measuring a brightness of the light generating unit. The display unit is arranged on the lamp holder for displaying information associated with the brightness measured by the brightness measuring unit01-15-2009
20100032548PHOTOELECTRIC CONVERTER AND PHOTOELECTRIC CONVERSION ELEMENT - A photoelectric converter includes a photoelectric conversion element, which includes a first electrode and a second electrode disposed discretely and a photoelectric conversion material layer disposed between the first electrode and the second electrode and in which a current generated in the photoelectric conversion material layer changes with the lapse of an application time, where a constant amount of light is applied to the photoelectric conversion material layer while a voltage is applied between the first electrode and the second electrode, and a current detection circuit to detect the change in the current.02-11-2010
20090200450BURST LIGHT RECEIVING POWER MONITOR CIRCUIT, METHOD, AND PROGRAM - The present invention allows immediate reading of a monitor voltage of a required arbitrary burst cell and provides a burst light receiving power monitor circuit that monitors the monitor voltage of a burst cell, the burst light receiving power monitor circuit comprising: a memory that includes a plurality of areas and that prepares an address for each area; a monitor voltage forming section that converts input signal light of the burst cell to a digital monitor voltage amplitude; and a controller that continuously stores the monitor voltage amplitude from the monitor voltage forming section in each area of the memory specified with an address by a control signal externally inputted according to the timing of the burst cell and that controls reading out a monitor voltage from an arbitrary area of the memory specified with an address by an external memory access signal.08-13-2009
20090200449PHOTOELECTRIC CONVERSION DEVICE AND IMAGING SYSTEM - A photoelectric conversion device comprises: a clipping unit including a MOS transistor which has a source connected to a signal line and a drain being connected to a power supply, and the clipping unit clipping an electric potential of the signal line to an electric potential corresponding to an electric potential of the source; a holding capacitance which has a first electrode and a second electrode, the first electrode being connected to a gate of the MOS transistor, and the holding capacitance holding at least a voltage transferred to the signal line while the charge-voltage converter has been reset; and a shift unit which shifts an electric potential of the second electrode in a direction such that the electric potential of the second electrode comes close to a level to be transferred to the signal line while the charge-voltage converter has been reset.08-13-2009
20090108174Storage Pixel - Embodiments of the present invention provide pixel cells with increased storage capacity, which are capable of anti-blooming operations. In an exemplary embodiment a pixel cell has an electronic shutter that transfers charge generated by a photo-conversion device to a storage node before further transferring the charge to the pixel cell's floating diffusion node. Each pixel cell also includes an anti-blooming transistor for directing excess charge out of each respective pixel cell, thus preventing blooming. Additionally, two or more pixel cells of an array may share a floating diffusion node and reset and readout circuitry.04-30-2009
20120193514Laser-Pointer-Controlled Diorama - The Invention outlines a method of incorporating a laser pointing device, an optical sensor target device, and a communication by laser beam between the laser-pointer device and the optical sensor target device with the goal of effecting the activation or control of a device embodied in a model railroad or diorama. The Invention includes details of an apparatus incorporating an optical sensor target that can distinguish between the states of being hit and being not hit by a laser beam that is emitted from a laser pointing device that is aimed at the target for the purpose of activating or controlling a device embodied in a model railroad or diorama, and presents that fact to another device via an appropriate electrical circuit.08-02-2012
20100155575ARRANGEMENT AND METHOD IN AN ELECTRONIC DEVICE FOR DETECTING A USER INPUT TO A KEY - A method in an electronic device for detecting a user input to a key of the electronic device associated with a solar cell that may include an input and an output is provided. The key may be transparent and admit input electromagnetic radiation to the solar cell. A change of input radiation into the solar cell may result in a corresponding change of an output signal of the solar cell. The method may include the step of detecting a change of the output signal corresponding to a change in input radiation as a result of light being blocked from being incident on the key (e.g., shadowed), and the step of indicating an input (i.e., activation) of the key associated with the solar cell with the detected output signal change.06-24-2010
20100148034IMAGE SENSOR AND METHOD FOR MANUFACTURING THE SAME - Provided are an image sensor and a method for manufacturing the same. The image sensor comprises a readout circuitry, an interconnection, an image sensing device, a first conductive-type ion implantation layer, and a via plug. The readout circuitry is formed in a first substrate. The interconnection is formed over the first substrate. The interconnection is electrically connected to the readout circuitry. Then image sensing device is formed over the interconnection. The image sensing device comprises a first conductive-type conductive layer and a second conductive-type conductive layer. The first conductive-type ion implantation layer is formed in a portion of the second conductive-type conductive layer of the image sensing device. The via plug penetrates through the first conductive-type ion implantation layer and the first conductive-type conductive layer to electrically connect the first conductive-type conductive layer to the interconnection.06-17-2010
20090072119Backlight unit and method of driving the same - Provided is a backlight unit including one or more white light emitting diodes (LEDs) for generating light; an LED module having a printed circuit board (PCB), the LED module supporting and driving the white LED; a sensor for detecting the color temperature of the white LED; a heat generating element connected to the LED module; and a controller for controlling the sensor, the LED module, and the heat generating element.03-19-2009
20100252715PHOTOCONTROL DEVICES AND METHODS FOR FORMING THE SAME - A photocontrol device for controlling a powered device includes a housing assembly defining a cavity and including a base assembly. The base assembly includes an outer base member having a base opening, and an inner base member separately formed from the outer base member and mounted in the base opening. A circuit board is disposed in the cavity. A photosensor is connected to the circuit board. An elongate contact member is mechanically and electrically coupled to the circuit board. The elongate contact member is mounted on and extends through the inner base member. The elongate contact member is adapted to electrically connect the photocontrol device with the powered device.10-07-2010
20120126093Device and Method for Preventing Detection or Speed Detection by External Laser Measuring Apparatus - A vehicle with a device including a central processing unit, at least one detector with at least one detection surface and designed for detecting, in a detection direction, laser pulses or a light beam coming from an external measuring apparatus which emits laser pulses or light beams for the purpose of detecting a vehicle and/or measuring the speed of a vehicle, and at least one transmitter with a transmission surface and which is designed for transmitting light pulses in a transmission direction that is substantially the same as said detection direction. The central processing unit causes the transmitter to transmit a series of light pulses upon detection of laser pulses or a light beam. The detection surface and the transmission surface are oriented substantially transversely to the driving direction of the vehicle.05-24-2012
20100243863Combined Photoelectric Conversion Device - A multi-layer photoelectric conversion device and technology is disclosed. A first photoelectric converter is separated from a second photoelectric converter by an insulative layer. The photoelectric converters may be of a variety of types, and the insulative layer provides protection to reduce pinhole faults in the multi-layer photoelectric conversion device.09-30-2010
20090065678SYSTEMS AND METHODS FOR A TILTED OPTICAL RECEIVER ASSEMBLY - Systems and methods are provided for depositing solder in a first pattern over a first bonding pad on the substrate; depositing solder in a second pattern over a second bonding pad on the substrate, wherein the second pattern defines a larger area than the first pattern; placing the electronic device on the substrate such that pads on the electronic device are aligned with the first and second bonding pads; and reflowing the solder between the pads on the electronic device and the first and second bonding pads, causing the solder deposited on the first bonding pad to form a first solder joint and the solder deposited on the second bonding pad to form a second solder joint. The second solder joint is larger than the first solder joint causing the electronic device to be attached at an angle relative to the substrate.03-12-2009
20090084935APPARATUS AND METHODS FOR AN AREA SCANNER - Apparatus and methods for operating an area scanner having a motorless scanning mechanism provide for enhanced operation of the area scanner. In an embodiment, an area scanner includes a micro-optical-electromechanical device to direct the scan of light from an optical source over a desired area.04-02-2009
20100012820LIGHT DETECTING DEVICE - In a photodetecting device 01-21-2010
20100258706PHOTODETECTOR CIRCUIT AND ELECTRONIC DEVICE - Provided is a photodetector circuit having significantly low current consumption. The photodetector circuit includes two opposing P-channel metal oxide semiconductor (MOS) transistors each including a gate connected to a drain of the opposing P-channel MOS transistor. The drain of one of the P-channel MOS transistors is discharged with an ON-state current of an N-channel MOS transistor which is turned ON with a voltage generated in a photoelectric element. The drain of the other of the P-channel MOS transistors is discharged with an ON-state current of a depletion type N-channel MOS transistor including a gate to which a voltage of a reference power supply terminal is input, and a source to which the voltage generated in the photoelectric element is input.10-14-2010
20090101796Methods, systems and apparatuses using barrier self-calibration for high dynamic range imagers - Methods, systems and apparatuses proving a high dynamic range imager. Multiple photosensor integration periods are used to capture pixel signal information. A transistor gate is used to remove electrons from the photosensor between the two successive integration periods providing a non-linear pixel response characteristic having a knee point. Each pixel is calibrated for the knee point which is used during adjustment of the pixel output signal. Each pixel may also be calibrated with an arbitrary signal response curve for multiple light intensities.04-23-2009
20080265132LIGHT SOURCE ERROR DETECTION APPARATUS AND METHOD - A light source error detection system and method including monitoring a plurality of characteristics of a light source and controlling the light source based on a plurality of monitored results. The system and method control the light source differently for a first case when only one of the monitored characteristics is abnormal than a second case when more than two of the monitored characteristics are abnormal. In controlling the light source, an output power of the light source is decreased with different time constant for the first case and the second case.10-30-2008
20080265131Light on electronic device - Various embodiments of a light on an electronic device are disclosed. In one embodiment, the light couples to a sensor and has a brightness that varies when ambient light incident on the sensor varies.10-30-2008
20090101797OPTICAL SIGNAL TRANSMITTING APPARATUS, OPTICAL SIGNAL TRANSMITTING DEVICE, AND OPTICAL SIGNAL RECEIVING DEVICE - An optical signal transmitting apparatus includes a light-emitting element, a light-receiving section, a conductive line and a controller. The light-emitting element converts an electric signal into an optical signal. The light-receiving section converts the optical signal, which is received from the light-emitting element through an optical transmission medium, into an electric signal. The conductive line is connected to an output terminal of the light-receiving section. The light-receiving section outputs an analog signal through the output terminal. The controller controls an extinction ratio of the light-emitting element in accordance with a characteristic impedance of the conductive line.04-23-2009
20110073749Photosensor Circuit - A photosensor circuit including a first node, a level shifting circuit, a phototransistor and an inverter is provided. The first node has an operation voltage signal. The level shifting circuit is coupled to the first node for biasing the first node, so that the operation voltage signal is biased to an operation biasing level. The phototransistor is coupled to the first node for receiving an optical signal and accordingly generates a first electrical signal by means of controlling the level of the operation voltage signal. The inverter receives the first electrical signal and accordingly generates and outputs a second electrical signal, which indicates the intensity of the optical signal.03-31-2011
20100059661Relay circuit - A relay circuit that includes: a light emitting element that outputs an optical signal in accordance with an input electric signal; a photoelectric conversion element that converts the optical signal into an electric signal and generates a potential difference between its opposite ends; a switching element that has a prescribed threshold value and that determines an output state in accordance with the potential difference that is generated by the photoelectric conversion element and that exceeds the prescribed value; first and second paths that are respectively connected to the opposite ends of the photoelectric conversion element and that transmit the potential difference generated by the photoelectric conversion element to the switching element; a discharge circuit that electrically connects the first path and the second path to each other when the potential difference generated by the photoelectric conversion element drops to a prescribed value; and a first resistor element that is arranged between the discharge circuit and the switching element and that is connected between the first path and the second path.03-11-2010
20080217512Colour Point Control System - Colour point control system (09-11-2008
20110215221PHOTOELECTRIC SENSOR AND METHOD FOR AIDING OPERATIONAL CHECKING OF PHOTOELECTRIC SENSOR - A photoelectric sensor comprises a control unit which is configured to store in a memory data on the amount of received light input from a light-receiving unit or measurement data obtained by a measuring process, and to perform a sampling process in which the data stored in the memory are read at fixed intervals as sampling data, the sampling process being performed within a limited reading period. Further, the control unit outputs the thus read sampling data so as to correspond to the order in which they are stored in the memory.09-08-2011
20110315852SCANNER ARRANGEMENT - The invention relates to a sensor arrangement for scanning a scanning area (12-29-2011
20120043454SAMPLING AND HOLDING CIRCUIT, METHOD OF DRIVING THE SAME AND IMAGING APPARATUS - A sampling and holding circuit includes an amplifier (A) that amplifies a signal, a holding capacitor (Ch) that stores the signal, and a switch (S) connected between an output terminal of the amplifier and the holding capacitor. In a state in which the switch is on, the amplifier amplifies the signal with a first signal bandwidth, and subsequently, in a state in which the switch is on, the amplifier amplifies the signal with a second signal bandwidth, which is narrower than the first signal bandwidth, and subsequently the switch is turned off while the amplifier still amplifies the signal with the second signal bandwidth.02-23-2012
20100096535POSITION SENSOR - A position sensing device (PSD) comprising: a light source that provides light responsive to current that it receives; a power source that provides current to the light source through a load line; a photodetector that receives an amount of light from the light source that is a function of position of the light source relative to the photodetector; and an integrated circuit comprising an I/O port connected to the light source and having a plurality of selectable states; wherein different selectable states determine different values for the load line and therefore current provided to the light source.04-22-2010
20120211639OPTICAL SENSOR AND ELECTRONIC EQUIPMENT - The optical sensor includes a photodiode PD08-23-2012
20120312960IMAGING APPARATUS AND EXPOSURE CONTROL METHOD - A control unit sets a first control value for causing a charge accumulation unit to execute a first accumulation and obtaining first image data and a second control value for causing the charge accumulation unit to execute a second accumulation and obtaining second image data, depending on whether an operation mode set by a setting unit executes image recognition processing based on image data obtained through accumulation by the charge accumulation unit. If the operation mode set by the setting unit does not execute the image recognition processing, the control unit sets the first and second control values to be different from each other, even if an object field has a constant luminance.12-13-2012
20120168607IMAGING SYSTEM AND METHOD USING SPATIALLY SEPARATED RADIATED FIELDS - Methods and systems for use in imaging an imaging domain that spatially separate a scattered field and reconstruct an image based on the spatially separated scattered field (e.g., for use in microwave imaging applications including tumor detection in human tissue, etc.).07-05-2012
20120312961SETTING IMAGING PARAMETERS FOR IMAGE GUIDED RADIATION TREATMENT - Systems, methods, and apparatuses are provided for setting imaging parameters for image guided radiation treatment. One system includes an imaging element configured to generate an observation of an object in accordance with a first value of an adjustable parameter. The object is associated with a volume of interest (VOI), wherein the VOI is a volume within a body of a patient. The system further includes one or more processors configured to determine a positioning of the VOI based at least in part on the observation of the object, determine a second value of the adjustable parameter based at least in part on a positioning parameter associated with the positioning of the VOI, and assist in providing the second adjustable parameter to the imaging element.12-13-2012
20120223213PHYSIOLOGICAL SENSOR HAVING REDUCED SENSITIVITY TO INTERFERENCE - A physiological sensor having reduced sensitivity to interference includes a light source, a light detector in optical communication with the light source, and a sensor pad at least partially housing the light source and the light detector. The sensor pad is configured to be capacitively isolated from a patient. Moreover, the physiological sensor may be electrically connected to an amplifier having a signal ground and a monitor.09-06-2012
20120228471Primary light converter for converting primary light into secondary light - The invention relates to a primary light converter (09-13-2012
20120228470MINIMIZING AMBIENT LIGHT IN A FEEDBACK CIRCUIT IN PULSE OXIMETER TEST INSTRUMENTS - Generally described, one or more embodiments of the present disclosure are directed to pulse oximeter test instruments for testing pulse oximeters. The pulse oximeter test instruments are configured to linearize a relationship between an input signal and an output signal of a light emitting diode (LED). In some embodiments, the linearized relationship may be obtained by minimizing an amount of ambient light detected by a photosensor in a feedback loop. The photosensor may be located in a housing that limits the amount of ambient light that may be detected.09-13-2012
20100237227OPTICALLY GATED MEMS SWITCH - An optically powered MEMS gate driver includes a photovoltaic converter configured to receive a light signal from a light source and output a DC supply voltage for a MEMS gate driver in response thereto. The MEMS gate driver further includes a DC to DC converter electrically coupled to the photovoltaic converter and configured to output a line level DC voltage in response to the DC supply voltage. An electrical circuit, also included as a portion of the MEMS gate driver is electrically coupled to both the photovoltaic converter and the DC to DC converter is configured to receive the supply voltage and the line level voltage and to output a line level drive signal in response thereto. The optically powered MEMS gate driver is self-contained within a common EMI enclosure thus providing isolation between the gate driver and command signal electronics.09-23-2010
20100219327High speed quantum efficiency measurement apparatus utilizing solid state lightsource - The present invention provides a high-speed Quantum Efficiency (QE) measurement device that includes at least one device under test (DUT), at least one conditioned light source with a less than 50 nm bandwidth, where a portion of the conditioned light source is monitored. Delivery optics are provided to direct the conditioned light to the DUT, a controller drives the conditioned light source in a time dependent operation, and at least one reflectance measurement assembly receives a portion of the conditioned light reflected from the DUT. A time-resolved measurement device includes a current measurement device and/or a voltage measurement device disposed to resolve a current and/or voltage generated in the DUT by each conditioned light source, where a sufficiently programmed computer determines and outputs a QE value for each DUT according to an incident intensity of at least one wavelength of from the conditioned light source and the time-resolved measurement.09-02-2010
20120326006OBJECT DETECTING DEVICE AND INFORMATION ACQUIRING DEVICE - An information acquiring device is provided with a light emitting device, a light receiving device, and a base member on which the light emitting device and the light receiving device are mounted side by side. The light emitting device is provided with a laser light source, a collimator lens, a light separating element which reflects a part of laser light and transmits a part of the laser light, a diffractive optical element which converts the reflected laser light into laser light having a dot pattern, a photodetector which receives the transmitted laser light, and a laser controller which controls a light emission amount of the laser light source based on a detection signal from the photodetector. The laser light source, the collimator lens and the light separating element are linearly arranged, and the diffractive optical element faces a target area.12-27-2012
20120286136LIDAR SYSTEM AND METHOD FOR MONITORING SPACE - A device for detecting a presence of an object includes an optical phased array, a detector, a processing portion and an indicator. The optical phased array can transmit a first optical beam to a first location at a first time and can transmit a second optical beam to a second location at a second time. The detector can detect a first reflected beam based on the first optical beam and can detect a second reflected beam based on the second optical beam. The processing portion can determine the presence of the object based on the first reflected beam and the second reflected beam. The indicator can generate an indicator signal based on the presence of the object.11-15-2012
20130009036LIGHT SOURCE SELECTION - The invention relates to selecting a light source from a plurality of light sources, particularly to the selecting of a light source by pointing to it with a light source selection device. An embodiment of the invention relates to a light source selection device (01-10-2013
20130020463IMAGE-SENSING DEVICES AND METHODS OF OPERATING THE SAME - In a method of operating an image sensor, a noise voltage of a floating diffusion region is sampled after a reset voltage is applied to the floating diffusion region. A storage region, in which a photo-charge is stored, is electrically connected to the floating diffusion region after sampling the noise voltage, and a demodulation voltage of the floating diffusion region is sampled after the storage region and the floating diffusion region are electrically-connected. A voltage is determined based on the noise voltage and the demodulation voltage.01-24-2013
20080224026RF controlled sequential lighting system - An RF controlled lighting system that activates lights in adjacent spaces when a person walks into a first space and then traverses the spaces in sequence. A detection device senses the entry of a person into a first space controlled by the system. A micro-controller activates the lights in that space for immediate light and in the adjacent spaces in preparation for the person to traverse the spaces in either direction from the origin space. As the person traverses the contiguous spaces, controllers in each space sense the person's presence and communicate by RF signals to activate lights along the person's path. The controllers extinguish their lights a predetermined time after the person passes or no one enters a space.09-18-2008
20130140431APPARATUS AND METHOD FOR MEASURING A LUMINESCENT DECAY - [Problem] An apparatus and method for measuring luminescence decay due to the lifetime of energy carriers inside a material such as a semiconductor is presented.06-06-2013
20130200250SYSTEM AND METHOD OF ELECTROMAGNETIC RADIATION CONTROL - A method of compensating for electromagnetic radiation. The method may include measuring electromagnetic radiation emanating from circuitry at a first frequency and adjusting at least one of the electrical settings of the circuitry based on the measurement of the electromagnetic radiation to reduce the electromagnetic radiation at the first frequency emanating from the circuitry.08-08-2013
20130112848Flexible Readout and Signal Processing in a Computational Sensor Array - A computational sensing array includes an array of sensing elements. In each sensing element, a first signal is generated from a transducer. A second signal is produced by a collection unit in response to receiving the first signal. The second signal may be modified, in a conditioning unit. A sensing element preprocessing unit generates a word representing the value of the modified second signal, and may produce an indication of change of the first signal. A current value of the word may be stored in a state holding element local to the sensing element, and a previous value of the word may be retained in a further state holding element local to the sensing element.05-09-2013
20130126701OPTICAL SENSING SYSTEM WITH A PHASE SENSITIVE AMPLIFIER AND ASSOCIATED METHODS - An optical sensing system includes a transmitter configured to transmit a free-space optical signal toward a target, and a receiver configured to receive a reflected free-space optical target signal from the target. The receiver includes a phase sensitive amplifier (PSA), a homodyne detector coupled downstream from the PSA, and a controller configured to adjust a phase of the PSA based upon the homodyne detector.05-23-2013
20130126703Imaging Detecting with Automated Sensing of an Object or Characteristic of that Object - Detection of a target object or a characteristic of that object, e.g. temperature or movement in an image of a scene at a focal plane of the image and with processing of signals representative of the image occurring at that focal plane with a sensor and an integrated circuit processor on an imaging circuit chip used to record the scene. Moreover, processing of the signals representative of the image and the object or characteristic of the object can all be processed in parallel. This arrangement allows for filtering of objects with the ability to distinguish the object generating signals from background clutter. The incorporation of the entire circuit in this integrated circuit chip increases the compactness and efficiency. Moreover, all signal processing will occur at the focal plane eliminates the need for external processing electronics thereby increasing compactness and efficiency while reducing spatial noise.05-23-2013
20130126702OPTICAL SENSOR DEVICE - An optical sensor element is mounted in a package which includes a glass lid substrate (05-23-2013
20130146746PHOTOELECTRIC CONVERTER - A photoelectric converter includes a circuit board, a laser diode electrical mounted on the circuit board, a supporting frame, an optical transmission member mounted on the supporting frame, a beam splitting assembly and an optical sensor positioned beside the beam splitting assembly. The laser diode, the beam splitting assembly and the optical sensor are received in a space cooperatively defined by the supporting frame and the optical transmission member. The laser diode emits optical signals. A part of optical signals is refracted by the beam splitter and transmitted to the optical transmission member, and the other part of optical signals is reflected by the beam splitter to the optical sensor.06-13-2013
20130181110DATA TRANSMISSION THROUGH OPTICAL VIAS - Technologies generally described herein relate to multilayer circuit boards with optical vias for data transmission between the layers. One or more regions may be created on a multilayer circuit board for optical vias. A transparent conducting oxide (TCO) layer can be deposited on a top and/or bottom layer of the circuit board. P-N junctions can be created over the TCO layer about the one or more regions to form optical vias as photo-emitting and/or photo-detecting components. The photo-emitting and/or photo-detecting components may be coupled to electronic components on the multilayer circuit board.07-18-2013
20130181111LIGHT MEASURING CIRCUIT AND METHOD - A light measuring circuit includes an integration circuit for integrating a current supplied form a photoelectric conversion element, an AD converter for AD converting the output voltage of the integration circuit, and a controller for obtaining a first AD conversion result from the AD converter and controlling the integration circuit and the AD converter to determine the time constant of the integration circuit in a second AD conversion following a first AD conversion. In this way, it is possible to measure the photocurrent with a wide dynamic range without making the circuit more complicated.07-18-2013
20100294914METHOD AND DEVICE FOR DETECTING THE LIGHT POWER EMITTED BY AN LED LIGHT SOURCE - In a method and a device for detecting the light power emitted by an LED light source, the LED light source is driven with a drive signal corresponding to a binary code. The light emitted by the LED light source is detected by means of a sensor system. The output signal of the sensor system is evaluated in a control and regulating unit. The LED light source is driven with a binary code having an irregular bit sequence.11-25-2010
20130153747INPUT DEVICE - There is provided an input device including: a housing having a surface on which a plurality of grids are disposed; a light emitting unit irradiating light onto the surface of the housing; a light receiving element detecting the light irradiated from the light emitting unit and reflected from the surface; and a control unit determining information regarding an object contacting the surface from the light detected by the light receiving element.06-20-2013
20110233380MONOLITHICALLY INTEGRATED LIGHT-ACTIVED THYRISTOR AND METHOD - A monolithically integrated light-activated thyristor in an n-p-n-p-n-p sequence consists of a four-layered thyristor structure and an embedded back-biased PN junction structure as a turn-off switching diode. The turn-off switching diode is formed through structured doping processes and/or depositions on a single semiconductor wafer so that it is integrated monolithically without any external device or semiconducter materials. The thyristor can be switching on and off optically by two discrete light beams illuminated on separated openings of electrodes on the top surface of a semiconductor body. The carrier injection of the turning on process is achieved by illuminating the bulk of the thyristor with a high level light through the first aperture over the cathode to create high density charge carriers serving as the gate current injection and to electrically short the emitter and drift layer. The switching off of the thyristor is achieved by shorting the base layer and the cathode layer by illuminating the embedded back-biased PN junction of the TURN-OFF switching diode. The patterned doping profile and the interconnect between the emitter and the base region of the light activated thyristor makes possible a monolithic and/or plantar integrated fabrication of the semiconductor switching device on a single semiconductor wafer via the standard semiconductor fabrication process.09-29-2011
20100314529QUANTUM DOT OPTICAL DEVICES WITH ENHANCED GAIN AND SENSITIVITY AND METHODS OF MAKING SAME - Optical and optoelectronic devices and methods of making same. Under one aspect, an optical device includes an integrated circuit an array of conductive regions; and an optically sensitive material over at least a portion of the integrated circuit and in electrical communication with at least one conductive region of the array of conductive regions. Under another aspect, a method of forming a nanocrystalline film includes fabricating a plurality of nanocrystals having a plurality of first ligands attached to their outer surfaces; exchanging the first ligands for second ligands of different chemical composition than the first ligands; forming a film of the ligand-exchanged nanocrystals; removing the second ligands; and fusing the cores of adjacent nanocrystals in the film to form an electrical network of fused nanocrystals. Under another aspect, a film includes a network of fused nanocrystals, the nanocrystals having a core and an outer surface, wherein the core of at least a portion of the fused nanocrystals is in direct physical contact and electrical communication with the core of at least one adjacent fused nanocrystal, and wherein the film has substantially no defect states in the regions where the cores of the nanocrystals are fused.12-16-2010
20130193304OPTICAL MODULE - An optical module includes a circuit board including a mount surface and a non-mount surface opposite the mount surface, a photoelectric conversion element mounted on the mount surface of the circuit board, an optical coupling member for holding an optical fiber and optically coupling the optical fiber and the photoelectric conversion element, a semiconductor circuit element mounted on the mount surface of the circuit board, and electrically connected to the photoelectric conversion element, a plate-shaped supporting member arranged so as to sandwich the optical coupling member between the supporting member and the circuit board, and an electrically conductive body supported by the supporting member, extended in a thickness direction of the supporting member, and connected at one end to an electrode provided on the non-mount surface of the circuit board.08-01-2013
20130099090TWO-STEP ANALOG-DIGITAL CONVERTING CIRCUIT AND METHOD - A two-step analog-digital converting circuit includes a comparator, an upper bit counter and a pulse residue conversion unit. The comparator is configured to compare a ramp signal and an input signal, and to output a resulting comparative signal. The upper bit counter is configured to receive the comparative signal and a clock signal, and to output upper bit values corresponding to a first time interval between a generation time point of the ramp signal and a first edge of the clock signal, the first edge of the clock signal immediately preceding a state transition time point of the comparative signal. The pulse residue conversion unit is configured to receive the comparative signal and the clock signal, and to output lower bit values corresponding to a second time interval between the first edge of the clock signal and the state transition time point of the comparative signal.04-25-2013

Patent applications in class Photocell controlled circuit

Patent applications in all subclasses Photocell controlled circuit