Abstract: The present invention provides a method for ambient light detection, proximity sensing, and ambient light charging applied to a panel. The method includes: providing a display panel, wherein the display panel comprises a plurality of pixels with PN junctions units in a display area; and providing a driving circuit, wherein the driving circuit drives each display pixel or each PN junction unit through a display mode, a standby mode, and a blanking time, so that part of each display pixel or each PN junction unit is used to perform a display function and part of each display pixel or each PN junction unit is used to carry out the ambient light detection, proximity sensing, or ambient light charging.

Abstract: A sky sensor device for measuring direct normal illuminance (DNE) value is described. One method controls a camera sensor to capture a series of exposure-bracketed images having a first dynamic range and generate an image from the series of exposure-bracketed images, the image having a second dynamic range higher than the first dynamic range. The method controls an illuminance sensor to measure a global illuminance value. The method determines a global horizontal diffuse value based on at least the image. The method determines a direct normal illuminance (DNE) value using the global illuminance value and the global horizontal diffuse value.

Abstract: Scanning systems and methods for measuring shafts are described. The scanning systems include a support structure and a scanner mounted to the support structure, at least one fixed guide arranged such that the support structure is configured to move along the at least one fixed guide, at least one positional guide arranged such that at least one positional guide is connected to the support structure to guide movement of the scanner along the at least one fixed guide, and an encoder operably coupled to the at least one positional guide and configured to measure, at least, a distance from the encoder to the support structure.

Abstract: A method includes obtaining, at an unmanned aerial vehicle, a flight plan for the unmanned aerial vehicle. The flight plan is based on an aircraft type of an aircraft to be inspected. The method also includes coordinating, with a lighting control device onboard the aircraft, activation of a particular exterior light of the aircraft based on the flight plan such that the particular exterior light activates or deactivates when a particular sensor of the one or more sensors is located (i.e., positioned and oriented) to perform a sensing operation on the particular exterior light. The method further includes performing the sensing operation on the particular exterior light using the particular sensor. The method also includes determining a functionality metric associated with the particular exterior light based on the sensing operation.

Abstract: The present invention relates to a novel counter system for keeping track of light cycles (i.e., light exposure) for plants and other aged products. The counter system is in the form of a small and compact weatherproof device designed to stake into the ground proximal to a crop such that solar light falls on the solar panel disposed on the top of the device. The device has a counter for incrementing a tally of days and/or hours by one unit upon tracking a light cycle for plants. In one embodiment, when the voltage detected by the counter drops to zero, a tally day is increased and the updated counter is displayed on a display screen of the device. In another embodiment, the device may be controlled remotely by a user. The device can be reset to zero and can also be configured for a specific crop.

Abstract: A system and method for counting items are described. A photocell detects an item, after which a converter converts the generated digital signal to an audio signal that a computing device can recognize. Data from the counting of items is displayed on a user interface of the computing device and/or other visual interfaces.

Abstract: A vehicle external environment recognition apparatus includes a light source extraction processor, a light source pair identification processor, a degree of reliability derivation processor, a light source pair re-identification processor, and a vehicle identification processor. The light source pair identification processor identifies a first pair of light sources based on positional relation of extracted light sources. The degree of reliability derivation processor derives a degree of vehicle reliability of the first pair of light sources. The degree of vehicle reliability indicates how reliably the first pair of light sources is regarded as belonging to the identical vehicle.

Abstract: A display system may include a camera configured to capture an image of a calibration reference associated with an automobile, a display, and a controller in communication with the camera and the display. The controller may be configured to selectively adjust a color temperature of the display based on the image of the calibration reference.

Abstract: A motorcycle comprising: a lighting system including a plurality of lamps, each of which is configured to illuminate a different region of a plurality of regions relative to the motorcycle; one or more imaging assemblies, each of which includes an image sensor configured to generate image data; and a controller in communication with each of the plurality of lamps that receives as input the image data that the image sensor from each of the one or more imaging assemblies generates, analyzes the image data, detects a vehicle from the image data, and activates whichever lamp of the plurality of lamps that illuminates the region of the plurality of regions that is closest to the vehicle to provide a visual warning to the vehicle of the motorcycle.

Abstract: An ultrasound circuit comprising a multi-stage trans-impedance amplifier (TIA) is described. The TIA is coupled to an ultrasonic transducer to amplify an electrical signal generated by the ultrasonic transducer in response to receiving an ultrasound signal. The TIA may include multiple stages, at least two of which operate with different supply voltages. The TIA may be followed by further processing circuitry configured to filter, amplify, and digitize the signal produced by the TIA.

Abstract: An apparatus and method for generating a mid-infrared region image of a specimen are disclosed. The apparatus includes a mid-infrared region laser that generates a first light beam, and a stage adapted to carry a specimen to be scanned. An optical assembly focuses the first light beam to a point on the specimen. A first light detector measures a first intensity of light leaving the point on the specimen. A stage actuator assembly causes the specimen to move relative to the point in two dimensions. A controller forms a mid-infrared region image from the first intensity. The image can be based on reflected or transmitted light. The maximum size of the imaged area is determined by a scanning assembly that moves in a first direction relative to the stage, the stage moving in a direction orthogonal to the first direction.

Abstract: An apparatus for controlling an intelligent headlamp may include: a capturing unit configured to capture a forward image of a vehicle; a lamp driving unit configured to independently drive LEDs of a headlamp configured as a matrix LED; a storage unit configured to store an initial origin point, a changed origin point and an offset for adjusting the position of the headlamp; and a control unit configured to control the lamp driving unit to turn on the headlamp, detect an origin point from the forward image inputted from the capturing unit, set the offset for adjusting the position of the headlamp by comparing the detected origin point to the initial origin point or the changed origin point stored in the storage unit, and store a changed origin point, newly set based on the detected origin point, and the offset in the storage unit.

Abstract: A correction device including a photon number counting unit that counts a photon number on the basis of an output signal output from a light receiving unit, a correction value acquiring unit that acquires a correction value corresponding to the photon number, and a correction unit that performs correction based on the correction value.

Abstract: An electronic apparatus that comprises a control unit is disclosed. The control unit displays a user interface for comparably presenting: first brightness that is brightness of an image in which a subject is shot with proper exposure that is based on a first reference value, second brightness that is brightness of an image in which the subject is shot with proper exposure that is based on a second reference value, and third brightness that is brightness of an image in which the subject is shot under current exposure conditions.

Abstract: A device for detecting vehicle lights in an image, the device is configured to receive an image captured by a camera, wherein the image comprises an array of pixels and each pixel of the image has a respective scene brightness value, compress the image to generate a compressed image, wherein the compressed image comprises an array of pixels and each pixel of the compressed image has a respective grey value, calculate for each grey value in the compressed image a corresponding scene brightness value in the image, and detect vehicle lights in the compressed image by using the calculated scene brightness values.

Abstract: A daylight sensor for automated window-shading applications that incorporates at least one (and optionally more than one) of three aspects: an optimized Field-of-View (FOV), angle-diversity sensing (via at least two sub-sensors with different FOVs, whose outputs are processed in a particular way to yield the overall sensor output), and multi-spectral sensing (via at least two sub-sensors with differing spectral responses and, optionally, different FOVs, whose outputs are processed in a particular way to yield the sensor output). These aspects improve the correlation between the sensor output and the subjectively-perceived daylight level (especially under glare-inducing conditions, such as in the presence of low-angle direct sunlight), thereby enabling more effective automatic control of daylight admitted into a room.

Abstract: A pixel array in a three-dimensional image sensor includes depth pixels and an ambient light cancellation (ALC) circuit. The depth pixels operate in response to photo control signals having different phases, and generate distance information of an object based on light reflected by the object. The ALC circuit removes an ambient light component from the reflected light, and is shared by the depth pixels. Each depth pixel includes a photoelectric conversion region, a floating diffusion region, a photo gate, and a drain gate. The photoelectric conversion region collects photo charges based on the reflected light. The floating diffusion region accumulates the photo charges. The photo gate is activated in response to one of the photo control signals. The photoelectric conversion region accumulates the photo charges when the photo gate is activated, and the photo charges in the photoelectric conversion region are released when the drain gate is activated.

Abstract: A display apparatus including a display panel is provided. The display panel has a plurality of display blocks, wherein each display block includes a light conversion circuit, a pixel array, and a data voltage selection circuit. The light conversion circuit receives the light pulse signal and has a pull-up circuit and a pull-down circuit, wherein the pull-up circuit and the pull-down circuit are coupled between a system high voltage and a system low voltage, and the pull-up circuit and the pull-down circuit output the system high voltage or system low voltage according to the light pulse signal to form a voltage pulse signal. The data voltage selection circuit is coupled to the light conversion circuit and the pixel array and receives an AC waveform voltage to supply a data signal to the pixel array according to the voltage pulse signal.

Abstract: A projection display system may be used to display projected images on an image display layer embedded on the surface of an object. The projection display system may include an image capturing device, a projector unit and a passive screen. The passive screen may include a display layer effecting display of at least one image projected thereon. The passive screen is further placeable on a surface of an object in the manner that said image capturing device in optical communication with said passive screen identifies physical boundaries of said passive screen and the projector unit projects at least one image scaled onto the passive screen within the boundaries thereof.

Abstract: The present invention provides methods and devices for determining end of life of a light fixture by comparing the light output of a control LED of the fixture with the light output of an illumination LED of the fixture. The control LED is energized for a short period of time for the purpose of measuring its light output. The illumination LED is energized for the duration of time of the light fixture itself. In this way, the amount of degradation of the illumination LED can be determined by comparison with the control LED. If the light output of the illumination LED falls below a threshold level, actions may be take, such as, for example, sounding an alarm.

Abstract: A magnification device including a housing having a distal open end and a proximal open end is disclosed. The housing includes an optical system including one or more objective lenses adjacent the distal open end, and one or more eye lenses adjacent the proximal open end, the optical system produced a desired level of magnification; and a filtering system having first filter selectively filtering a first group of wavelengths and a second filter selective filtering a second group of wavelengths. The first and second filters having an optical density selected based on a magnification level of the optical system. A vision enhancing assembly including a carrier device and one or more magnification devices coupled to the carrier device is also disclosed, wherein the magnification devices include filters that have optical densities based on a magnification level.

Abstract: The invention relates to a homogenizer having an input surface and an output surface which are incongruent to one another, at least one inclined surface extending between the input surface and the output surface. The inclined surface is corrugated. According to the invention, the homogenizer is designed as a hollow element which surrounds the LED chips (14) reflectively.

Abstract: A photoconductor for emitting and/or receiving electromagnetic waves is provided. The photoconductor comprises a material region comprising a first and a second section, wherein the second section provides a higher density of charge carrier trapping centers and/or recombination centers than the first section, and a confinement generating a sub-band structure of the charge carrier energy states in the material region. The first and the second section are arranged and configured in such a manner that a maximum of the carrier probability density of the sub-band ground state is located in one of these sections and a maximum of the carrier probability density of an excited sub-band state is located in the respective other section.

Abstract: A computer implemented method of estimating solar irradiance, the method comprising: constructing a reference irradiance set of tuples; constructing a reference predictor set of tuples, merging the reference irradiance set of tuples and the reference predictor set of tuples by matching numerical identifiers for a location for which a global horizontal irradiance exists in the reference irradiance set of tuples and the timestamp with the numerical identifier for a particular location in the reference predictor set of tuples and the timestamp to provide a reference data set of tuples; and estimating the global horizontal irradiance for a specific location and a timestamp by minimizing the least squares error between the reference predictor set of tuples and the reference irradiance set of tuples to provide a set of estimated global horizontal irradiance values for a specific location and timestamp.

Abstract: Devices, systems, and methods for determining a distance between at least two points are disclosed and described, wherein interferometry technology is utilized to determine such distances.

Abstract: A multisite sensing system including two or more analyte sensors, an interface device, and a shared bus. The interface device may be configured to receive a power signal and generate power for powering the analyte sensors and to convey data signals generated by the analyte sensors. The shared bus connected to the interface device and each of the analyte sensors and configured to provide the power generated by the interface device to the analyte sensors and to provide the data signals generated by the analyte sensors to the interface device. The interface device may be an inductive element. The shared bus may be a two wire, multiplexed bus. The analyte sensors may be spatially separated for analyte sensing at least two different locations. The analyte sensors may generate data signals indicative of the presence and/or amount of the same analyte or of one or more different analytes.

Abstract: The invention is directed to improved systems, methods, and computer readable media for detecting gas leaks. More particularly, the invention detects gas leaks or discharges, such as methane or any other suitable gases, by analyzing reflected or direct light that passes through a region of enhanced target gas concentration. The invention collects light and processes spectral data of the light. All molecules are subject to rotational motions, vibrational motions, and/or combinations thereof (rovibrational motions), in which the atoms in the molecule are vibrating with respect to each other and/or rotating around each other. When the light passes through the region of the target gas, a portion of the light with certain wavelengths will be absorbed by the target gas due to the rovibrational motions of the target gas molecules. By analyzing the magnitude of absorption at certain wavelengths, one can determine the concentration of certain target gas or gases.

Abstract: A multisite sensing system including two or more analyte sensors, an interface device, and a shared bus. The interface device may be configured to receive a power signal and generate power for powering the analyte sensors and to convey data signals generated by the analyte sensors. The shared bus connected to the interface device and each of the analyte sensors and configured to provide the power generated by the interface device to the analyte sensors and to provide the data signals generated by the analyte sensors to the interface device. The interface device may be an inductive element. The shared bus may be a two wire, multiplexed bus. The analyte sensors may be spatially separated for analyte sensing at least two different locations. The analyte sensors may generate data signals indicative of the presence and/or amount of the same analyte or of one or more different analytes.

Abstract: An irradiation device for photopheresis, comprising an exposure chamber configured to receive an illumination container holding a target cell suspension, an irradiation transmitter configured to irradiate the illumination container and target cell suspension, an irradiation receiver configured to detect absorption of radiation from the irradiation transmitter, and a processing circuit coupled to the irradiation receiver and configured to determine whether a hematocrit of the target cell suspension exceeds a predetermined threshold hematocrit and to treat the target cell suspension with a treatment dosage of radiation if the predetermined threshold is exceeded.

Abstract: The performance of photosensitive devices over time may be tested by configuring a photosensitive device test system that includes a light source plate that exposes photosensitive devices within a container to a specified light intensity. The light intensity may be adjusted by a programmable power source according to one or more thresholds. A test may last for a set duration with performance measurements being taken at predetermined intervals throughout the duration. Feedback from the photosensitive device test system may be recorded to determine whether to increase light intensity, to stop testing, to continue testing, and whether one or more environmental conditions should be altered. Measurements may be sent to a client for analysis and display to a user.

Abstract: Systems, methods, and computer readable media to resolve three dimensional spatial information of cameras used to construct 3D images. Various embodiments perform communication synchronization between a first image capture system and one or more other image capture systems and generate a first flash pulse that projects a light pattern into an environment. An image is captured that includes the light pattern and a modulated optical signal encoded with an identifier of one of the first image capture system and related-camera information. A second flash from another image capture systems may flash at a second time based on the communication synchronization. During the second flash, the first image capture system captures a second image of the environment. Based on the first and second images, the first image capture system determines the orientation of the second image capture system relative to the first image capture system.

Abstract: A color mask for an image sensor of a vehicle camera, the color mask having a matrix configuration of filter pixels having different spectral transmission behaviors, some filter pixels being transparent filter pixels, which are at least essentially uniformly transparent for optical light, and additional filter pixels being color pixels having a wavelength-selective transmission behavior, the color mask having a color pattern as a repeating configuration of filter pixels having a specific transmission behavior. The color mask has a central area having a first color pattern and a lower area and/or an upper area having a second color pattern, the first color pattern and the second color pattern being different, and the first color pattern containing transparent filter pixels.

Abstract: A method for characterizing the uniformity of a material includes selecting a set of size scales at which to measure uniformity within an area of interest in an image of the material; suppressing features in the image smaller than a selected size scale of interest within the set of size scales; dividing the image into patches equal to the size scale of interest; and calculating a uniformity value within each patch.

Abstract: Manufacturing a light source module may include mounting light emitting devices on substrates on an upper surface of a carrier, mounting optical devices to cover the light emitting devices, and inspecting the light emitting devices and the optical devices based on selectively capturing images thereof. Images may be captured based on controlling a light source module scanner assembly on the carrier. The substrates may extend in a first direction and may be spaced apart in a second direction. Controlling the light source module scanner assembly may include moving the light source module scanner assembly along a selected direction to position the light source module scanner assembly on at least one of the light emitting devices and the optical devices. The direction may be selected based on the quantity of substrates and the quantity of light emitting devices and optical devices on each of the substrates.

Abstract: A system and method involve propagating, from one or more optical sources connected to a platform, more than one optical signal through a surrounding medium towards a reflective surface. Reflected optical signals, representing the propagated optical signals reflected off of the reflective surface, are then detected using a detection system coupled to the platform. An ideal optical wavelength is then selected for optical communication from the platform within the surrounding medium based upon one or more characteristics of the detected reflected optical signals.

Abstract: To provide a sensor device which is capable of high temperature detection using self-heat generation without providing a dedicated terminal and suppresses an increase in cost with an increase in chip occupation area due to the addition of a test pad. A sensor device is configured to include an active logic switching circuit for switching an active logic of an output driver and perform a heating inspection while switching the active logic of the output driver during an inspection process with the output driver as a heat generation source.

Abstract: Systems and methods for wavelength optimization for underwater optical communication can include a plurality of n lasers having different wavelengths ?i for i=1 to n, a beam splitter and a corner retro-reflector. The plurality of n lasers can simultaneously illuminate the beam splitter along a coincident axis. The plurality of n lasers can be selectively blocked so that only one laser wavelength ?i at a time impinges on the beam splitter. A portion passes through the beam splitter to establish a reference signal, while the remainder is reflected off the corner retro-reflector. A portion of return illumination passes through the beam splitter to establish a return signal. The process can be repeated for each of n lasers for i=1 to n. The ?i wavelength where the normalized signal-to-noise differential between the reference signal and return signal is the minimum can be the optimum communication wavelength.

Abstract: A camera for determining distances to a scene, the camera comprising: a light source comprising a VCSEL controllable to illuminate the scene with a train of pulses of light having a characteristic spectrum; a photosurface; optics for imaging light reflected from the light pulses by the scene on the photosurface; and a shutter operable to gate the photosurface selectively on and off for light in the spectrum.

Abstract: A method and associated EUV lithography apparatus for determining the phase angle at a free interface (17) of an optical element (13) provided with a multilayer coating (16) that reflects EUV radiation and/or for determining the thickness (d) of a contamination layer (26) formed on the multilayer coating (16). The multilayer coating (16) is irradiated with EUV radiation, a photocurrent (IP) generated during the irradiation is measured, and the phase angle at the free interface (17) and/or the thickness (d) of the contamination layer (26) is determined on the basis of a predefined relationship between the phase angle and/or the thickness (d) and the measured photocurrent (IP). The measured photocurrent (IP) is generated from the entire wavelength and angle-of-incidence distribution of the EUV radiation impinging on the multilayer coating (16).

Abstract: The disclosure of the present invention provides an image processing method and apparatus. The method comprises acquiring a single picture image displayed on a display panel; determining an average value of each area relating to a display parameter, after the acquired single picture image is divided into a plurality of areas according to a preset regulation; determining differences between average values of respective two adjacent areas, and determining a uniformity of the single picture image displayed on the display panel in accordance with a relationship between each difference and a threshold of a resolvable picture uniformity by an human eye; adjusting the difference between the average values of the respective two adjacent areas to be not greater than the threshold of the resolvable picture uniformity by the human eye, when determining the single picture image displayed on the display panel to be not uniform.

Abstract: A computerized system and method for managing a passive optical network (PON) is disclosed. The system includes a detection and analysis module adapted for receiving uploaded measurement data from an optical line terminal (OLT) and at least one optical network terminal (ONT), and at least one of technical tools data, service failure data, and outside plant data. The detection and analysis module is adapted for determining a source of failure or potential failure in the PON by correlating the uploaded measurement data and the at least one of technical tools data and service failure data with information stored in a memory medium for the OLT and each ONT.

Abstract: A method for measuring the concentration of a gas component in a measurement gas using a gas analyzer comprises varying the wavelength of the light of a wavelength-tunable light source within periodically consecutive scan intervals for wavelength-dependent scanning of a gas component absorption line of interest. The method also comprises modulating the wavelength of the light of the wavelength-tunable light source with a frequency, guiding the modulated light through the measurement gas onto a detector and demodulating a measurement signal generated by the detector in the event of a harmonic of the frequency. The method further comprises producing a measurement result by fitting a desired curve to the profile of the demodulated measurement signal. A function orthogonal to the desired curve is provided, and an orthogonal component of the measurement result is produced by fitting the orthogonal function to the profile of the demodulated measurement signal.

Abstract: A laser output measuring apparatus in which an optical separator is disposed in a position that is rotated by a predetermined angle about an optical axis of a laser beam converged by a lens, and further rotated by a predetermined angle about the optical axis of the laser beam and a straight line perpendicular to an incident surface of the laser beam.

Abstract: A method and system are provided to image an external scene by employing a custom image sensor. The custom image sensor may use a GRRB array to filter the images of oncoming and preceding vehicle taillights captured by a vehicle camera. The method and system may also calculate a GRRB color metric for use in the custom image sensor by performing interpolation on a number of color channels, summing the brightness values for each of the color channels interpolated, normalizing each of the brightness values, and converting the normalized brightness values from an RGB scale to a linear scale of non-red to red.

Abstract: Disclosed is a method for testing a light-emitting device comprising the steps of: providing a light-emitting device comprising a plurality of light-emitting diodes; driving the plurality of the light-emitting diodes with a current; generating an image of the light-emitting device; and determining a luminous intensity of each of the light-emitting diodes; wherein the magnitude of the current is determined such that the current density driving each of the light-emitting diodes is smaller than or equal to 300 mA/mm2.

Abstract: A device and method to detect a gesture performed by an object in touch-less communication with the device are described. The device includes two or more ambient light sensors arranged at respective first surface locations of the device, each of the two or more ambient light sensors sensing light intensity at the respective first surface location. The device also includes one or more processors to control one or more light sources at respective second surface locations of the device based on the light intensity sensed by the two or more ambient light sensors, calibrate the two or more ambient light sensors based on the one or more light sources, and detect the gesture based on the light intensity sensed by each of the two or more ambient light sensors.

Abstract: A light control apparatus for a vehicle may include: an operation unit configured to receive a selection for an auto-light function; a control unit configured to determine whether or not a light operation condition is satisfied based on position information provided from a GPS module and plural pieces of information for operating a light unit, received through a wireless communication module, and output a light operating signal according to the determination result, when the auto-light function is selected through the operation unit; and a light control unit configured to operate a light unit according to the light operating signal provided from the control unit.

Abstract: An automatic brightness adjustment for devices with displays includes the capability to assess ambient light. The assessment may be made using circuitry, such as a light meter circuit, by exploiting exposure control circuitry, or using other approaches. The ambient light value is sent to a brightness adjustment driver, which may employ a look-up table to keep track of brightness adjustments for particular ambient conditions. The look-up table may include distinct adjustment values.

Abstract: A system and method are disclosed for determining a pixel capacitance. The pixel capacitance is correlated to a pixel age to determine a current correction factor used for compensating the pixel drive current to account for luminance degradation of the pixel that results from the pixel aging.

Abstract: Generally, the present disclosure provides for a light duct sensor that can monitor an average light flux through light duct useful for architectural lighting. The present disclosure provides for a system that allows a minimally obtrusive sampling of the light in a duct. It samples a small fraction of a cross sectional area of a light duct that is distributed across potentially the entire cross sectional area, without creating a significant disturbance to the light.