Abstract: The present disclosure relates to an image sensor integrated chip having a deep trench isolation (DTI) structure having a reflective element. In some embodiments, the image sensor integrated chip includes an image sensing element arranged within a substrate. A plurality of protrusions are arranged along a first side of the substrate over the image sensing element and one or more absorption enhancement layers are arranged over and between the plurality of protrusions. A plurality of DTI structures are arranged within trenches disposed on opposing sides of the image sensing element and extend from the first side of the substrate to within the substrate. The plurality of DTI structures respectively include a reflective element having one or more reflective regions configured to reflect electromagnetic radiation. By reflecting electromagnetic radiation using the reflective elements, cross-talk between adjacent pixel regions is reduced, thereby improving performance of the image sensor integrated chip.

Abstract: A pixel unit for an image sensor. The pixel unit includes a photodiode for converting alight signal into a processing signal, a multiplexer unit that is designed for using the processing signal to generate at least a first multiplexer signal and a second multiplexer signal that deviates therefrom, and a storage device having at least a first storage unit for buffer storing a time-limited integral value of the first multiplexer signal and a second storage unit for buffer storing a time-limited integral value of the second multiplexer signal. The pixel unit makes possible a time-overlapped sampling of the first multiplexer signal and of the second multiplexer signal.

Abstract: The present disclosure provides a fingerprint photocurrent detection unit, a fingerprint identifier, a driving method and a display device. The fingerprint photocurrent detection unit includes: a conversion circuit coupled to a fingerprint photocurrent reading line and configured to convert a fingerprint photocurrent acquired by the fingerprint photocurrent reading line into a square wave signal; and a detection circuit coupled to the conversion circuit and configured to detect the square wave signal and acquire information about a fingerprint photocurrent in accordance with a frequency of the square wave signal.

Abstract: A medium processing apparatus includes a sensor that is intermittently energized and detects a predetermined physical quantity and outputs the detection value in the energization period, the sensor stabilizing its output after an output stabilization period, which is shorter than the energization period, has lapsed, a storage unit that stores the detection value that has been detected by the sensor before the lapse of the energization period and after the lapse of the output stabilization period, and a controller that reads the detection value from the storage unit and performs a predetermined process by using the detection value read.

Abstract: A light source in a rotary optical encoder can illuminate a pattern on a rotatable shaft and an optical sensor can detect either the light that is reflected or transmitted based on the pattern. A sampling rate of the optical sensor is dynamically adjusted based on a rotational speed of the rotatable shaft. A pulse rate of the light source may also be dynamically adjusted based on the sampling rate of the optical sensor.

Abstract: An object detector includes a projector including a light source having a two-dimensionally arranged plurality of light emitter groups, each of the light emitter groups having a plurality of light emitters, a light receiver which receives light emitted from the projector, and reflected by an object, and a light source driver which lights on and lights off each of the light emitter groups of the light source.

Abstract: A solar monitoring system for measuring solar radiation intensity comprising a tracking unit having two-axis movement comprising, an image capturing head mounted with first and second irradiation measuring units, and a controller. The first irradiation measuring unit comprises a direct normal irradiance (DNI) sensor and the second irradiation measuring unit includes a diffuse horizontal irradiance (DHI) sensor and a global horizontal irradiance (GHI) sensor. The controller receives inputs from the sensors or a software program configured to control orientation of the image capturing head so that the DNI sensor is always exposed to the sun, and the shading disc is always directly between the DHI sensor and the sun.

Abstract: The present invention relates to a fluorescent image system capable of generating white light by mixing three monochromatic lights, i.e. red, green and blue monochromatic lights, having a narrow band wavelength, instead of white light of constant wavelength; providing a fluorescent image-use light source that generates a mixed light by adding a fluorescent excitation light source suitable for fluorescent substances; and photographing a general image and fluorescent image simultaneously with the light sources.

Abstract: A photoconductive switch is disclosed having a substrate, an electrode formed on the substrate, and a dielectric formed adjacent to the substrate and the electrode. The dielectric, the electrode and the substrate each have a portion cooperatively defining an interface area. The interface area of the dielectric has a doping making the interface area of the dielectric electrically conductive to suppress a charge collection at the interface area when the photoconductive switch is electrically energized through an input signal irradiating the electrode. In one embodiment the electrode may have a curvilinear or spherical shape, and the substrate may have a boundary edge surface which extends normal to the surface of the electrode, and with the dielectric having an edge surface that matches the contour of the substrate edge surface.

Abstract: An encoder includes a scale having a continuous part where physical characteristics varies and a discontinuous part that interrupts the continuous part, a detector that be relatively displaced with respect to the scale and that detects the physical characteristics of the scale, and a processor that detects an origin of the scale on the basis of a signal for displacement detection output from the detector. The detector includes a sensitive part having sensitivity contributing to the signal for displacement detection and an insensitive part having no sensitivity contributing to the signal for displacement detection. The processor detects the origin on the basis of signal intensity of each of signals for displacement detection that the detector outputs when the sensitive and insensitive parts detect physical characteristics of the discontinuous part.

Abstract: Embodiments of the present application disclose image sensors with adjustable pixel density and pixel density adjustment methods thereof, wherein one of the image sensors with adjustable pixel density comprises: a plurality of image sensor pixels array-distributed; and a controllable deformed material portion respectively connected with the plurality of image sensor pixels; the controllable deformed material portion being deformable under the action of an external field and density distribution of the plurality of image sensor pixels being correspondingly adjusted through the deformation. The technical solutions of the embodiments of the present application can achieve adjustable pixel density of the image sensor, performs image acquisition based on the image sensor with adjustable pixel density, and can make full use of overall pixels of the image sensor to present differentiated resolution of different regions of an acquired image, thereby better meeting users' diversified application demands.

Abstract: A device comprises a platform constructed and arranged to be mounted to one or more solar array modules and one or more solar irradiance sensors on the platform configured to receive incident solar energy, the one or more solar irradiance sensors oriented on the platform so that the received incident solar energy is comparable to that received by the solar array modules, the one or more solar irradiance sensors providing solar irradiance signals in response to the incident solar energy. A processor is on the platform, the processor configured to receive the solar irradiance signals and, in response, generating a performance reference metric based on the solar irradiance signals, the performance reference metric related to the expected performance of the one or more solar array modules to which the platform is mounted. A transmitter is on the platform, the transmitter configured to periodically transmit the performance reference metric to a receiver.

Abstract: The invention relates to a method for digitally processing a signal from an optoelectronic distributed measuring device based on Brillouin scattering, said device comprising a continuous light source (1), a coupler (2), an acousto-optic modulator (3), an optical fiber (5) to be tested so that it emits in return a signal by spontaneous Brillouin backscattering at a frequency ?F equal to ?p??Bz, where ?Bz is the Brillouin frequency to be measured at every point z of said optical fiber (5), a local oscillator (16) emitting another light signal intended to be mixed with said return signal emitted by Brillouin backscattering by said optical fiber (5) to be tested, a detection module (9) able to detect said Brillouin shift frequency ?Bz at every point z of said optical fiber and a processing module for linking this Brillouin shift frequency ?Bz at every point z of said optical fiber to a temperature value and a strain value.

Abstract: A transimpedance amplifier (TIA) device. The device includes a photodiode coupled to a differential TIA with a first and second TIA, which is followed by a Level Shifting/Differential Amplifier (LS/DA). The photodiode is coupled between a first and a second input terminal of the first and second TIAs, respectively. The LS/DA can be coupled to a first and second output terminal of the first and second TIAs, respectively. The TIA device includes a semiconductor substrate comprising a plurality of CMOS cells, which can be configured using 28 nm process technology to the first and second TIAs. Each of the CMOS cells can include a deep n-type well region. The second TIA can be configured using a plurality CMOS cells such that the second input terminal is operable at any positive voltage level with respect to an applied voltage to a deep n-well for each of the plurality of second CMOS cells.

Abstract: An encoder includes: a base member; a printed board fixed directly or indirectly to the base member; and a cover member fixed to the base member while the printed board is arranged inside the cover member. A first enclosed space and a second enclosed space are formed inside the cover member. The first enclosed space is space in which the printed board is arranged entirely or partially in an enclosed state. The second enclosed space is formed between the first enclosed space and the cover member.

Abstract: An optical encoder of the present invention includes a light-receiving element unit 5, moving slit 2 and fixed slit 3. The light-receiving element unit 5 includes a pattern 5B for detecting infiltration of liquid.

Abstract: A fiber optic sensor interrogation system with inbuilt passive power limiting capability that provides improved safety performance for use in explosive atmospheres.

Abstract: In one embodiment, an on-chip electronic-plasmonic transducer is provided that is capable of both direct plasmon generation and detection at high efficiencies. The electronic-plasmonic transducer includes a metal-insulator-metal junction formed from a first wire constructed of a first metal, a tunneling barrier material in contact with the first wire, and a second wire made from a second metal in contact with the tunneling barrier material. A plasmonic waveguide is formed as a contiguous part of the second wire, such that the waveguide is directly coupled to the MIM junction. The electronic-plasmonic transducer can both directly generate and detect plasmons, such that it may be configured on-chip as either a plasmon source or a plasmon detector. The electronic-plasmonic transducer may be used to form an on-chip plasmon-based frequency multiplier or plasmon amplifier, among other usages.

Abstract: The present disclosure provides an optical module comprising: a photoelectric conversion unit, a first demodulation circuit, and a second demodulation circuit; the first demodulation circuit and the second demodulation circuit are respectively connected to the photoelectric conversion unit; the photoelectric conversion unit is configured to convert the received optical signal into an electrical signal; the first demodulation circuit is configured to demodulate an electrical signal converted by the photoelectric conversion unit and generate a high-frequency electrical signal; the second demodulation circuit is configured to demodulate an electrical signal converted by the photoelectric conversion unit and generate a low-frequency electrical signal.

Abstract: A system for a feedback transimpedance amplifier with sub-40 khz low-frequency cutoff is disclosed and may include amplifying electrical signals received via coupling capacitors utilizing a transimpedance amplifier (TIA) having feedback paths comprising source followers and feedback resistors. The feedback paths may be coupled prior to the coupling capacitors at inputs of the TIA. Voltages may be level shifted prior to the coupling capacitors to ensure stable bias conditions for the TIA. The TIA may be integrated in a CMOS chip and the source followers may comprise CMOS transistors. The TIA may receive current-mode logic or voltage signals. The electrical signals may be received from a photodetector, which may comprise a silicon germanium photodiode and may be differentially coupled to the TIA. The chip may comprise a CMOS photonics chip where optical signals for the photodetector in the CMOS photonics chip may be received via one or more optical fibers.