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公开(公告)号：US20240210240A1
公开(公告)日：2024-06-27
申请号：US18378263
申请日：2023-10-10
Applicant: KINGFAR INTERNATIONAL INC.
Inventor： Qichao ZHAO , Ran YANG
IPC: G01J1/44
CPC classification number: G01J1/44 , G01J2001/444
Abstract: A near-infrared light acquisition circuit, method, system and device relates to the technical field of near-infrared light acquisition. The near-infrared light acquisition circuit includes a plurality of acquisition modules, a plurality of transimpedance amplification modules, a plurality of filter modules, switching module and control module; the inputs of the transimpedance amplification modules are respectively and correspondingly connected to the outputs of the acquisition modules, and the outputs of the transimpedance amplification modules are respectively and correspondingly connected to the inputs of the filter modules, the outputs of the filter modules are connected to the inputs of the switching module, and the control ends of the switching module are connected to the logic outputs of the control module, the outputs of the switching module are connected to the inputs of the control module, and the output of the control module is connected to the upper computer.
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122.发明授权公开(公告)号：US11982566B2
公开(公告)日：2024-05-14
申请号：US17442145
申请日：2020-02-28
Inventor： Ivan Michel Antolovic , Claudio Bruschini , Edoardo Charbon , Gur Lubin , Ron Tenne , Dan Oron , Uri Rossman
CPC classification number: G01J1/44 , G01J1/4228 , G01J2001/442 , G01J2001/444 , G01J2001/4466
Abstract: A system for photon correlation of an illuminated object and/or a light source is provided. The system includes a light source for illuminating the object and an optical system having an object-facing side configured to face the object or the light source and a projection side with the projection side having a focal plane. The system also includes a single-chip single photon avalanche photodiode (SPAD) array arranged at the focal plane and a timing circuit associated with the single-chip SPAD array for measuring arrival times of photons detected by the single-chip SPAD array.
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公开(公告)号：US11974047B1
公开(公告)日：2024-04-30
申请号：US17468611
申请日：2021-09-07
Applicant: Apple Inc.
Inventor： Angelo M Alaimo , Shahrooz Shahparnia , Paul V. Johnson
CPC classification number: H04N23/74 , G01J1/4204 , G01J1/429 , G01J1/44 , G06F1/1686 , G01J2001/444
Abstract: Various embodiments include a light source module with one or more light emitters and one or more light sensors that share an aperture via which light passes. One of the light sensors may measure illuminance received through the aperture (not illuminance from the light emitters) and send a signal indicating a measurement of the illuminance. The light source module may be integrated into a portable computing device having a controller. The controller may include logic to perform one or more device operations based on the measurement of illuminance, such as, but not limited to, controlling a device display brightness and/or controlling an auto exposure feature of the device camera. Calibration parameters for interpreting the signal may be determined via a calibration process.
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公开(公告)号：US11953374B2
公开(公告)日：2024-04-09
申请号：US18162393
申请日：2023-01-31
Applicant: Apple Inc.
Inventor： Michael D Eaton , Anand K Chamakura , Dong Zheng
CPC classification number: G01J1/44 , G01J1/4204 , G09G3/20 , G01J2001/444 , G09G2320/0626 , G09G2330/06 , G09G2360/144
Abstract: An electronic device may have an ambient light sensor for gathering ambient light measurements. The ambient light sensor may include multiple channels for measuring different wavelengths of ambient light. An additional, modified, channel may be formed in the ambient light sensor to measure radio-frequency signals that may interfere with the ambient light measurements due to electromagnetic interference. Alternatively, circuitry separate from the ambient light sensor, such as an antenna, may measure the radio-frequency signals. If the radio-frequency signals exceed a threshold, the ambient light sensor measurements taken in the presence of the radio-frequency signals may be discarded or corrected. If the radio-frequency signals do not exceed a threshold, the ambient light sensor measurements may be kept. Therefore, the ambient light measurements that are kept and relied upon by the electronic device may be free from electromagnetic interference.
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公开(公告)号：US20240102856A1
公开(公告)日：2024-03-28
申请号：US18234794
申请日：2023-08-16
Applicant: Apple Inc.
Inventor： Matthew A. Terrel , David S. Gere , Alexander F. Sugarbaker , Thomas C. Greening , Jason S. Pelc , Mark A. Arbore
CPC classification number: G01J1/44 , G02B6/43 , G01J2001/444
Abstract: Embodiments are directed to optical measurement systems that utilize multiple emitters to emit light during a measurement, as well as methods of performing measurements using these optical measurement systems. The optical measurement systems may include a light generation assembly that is configured to generate light via a light source unit, and a photonic integrated circuit that includes a launch group having a plurality of emitters. Each of these emitters is optically coupled to the light generation assembly to receive light generated from the light generation assembly, and may emit this light from a surface of the photonic integrated circuit. The optical measurement system may perform a measurement in which the light generation assembly generates light and each of the plurality of emitters simultaneously emit light received from the light generation assembly.
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Patent Agency Ranking
126.发明授权公开(公告)号：US11910100B2
公开(公告)日：2024-02-20
申请号：US17384931
申请日：2021-07-26
Applicant: OPPLE LIGHTING CO., LTD.
Inventor： Zhixian Zhou , Yalong Liu , Jun Wu
IPC: H04N23/745 , G01J1/44
CPC classification number: H04N23/745 , G01J1/44 , G01J2001/444
Abstract: A detection circuit, a method for detecting light source flicker, a device for detecting light source flicker, and a photoelectric detection device are provided by the examples of the present disclosure, and the detection circuit includes a power supply; a photodiode configured to output a current based on a light source; a driving circuit connected in series with the photodiode and configured to generate an output voltage based on the current output by the photodiode, a current output by the power supply, and a resistive component, the driving circuit includes a plurality of circuits with different illumination correlation coefficients; and a control unit connected with the driving circuit and configured to select a circuit with a matched illumination correlation coefficient from the driving circuit to control the output voltage within a designate voltage range.
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公开(公告)号：US20240035884A1
公开(公告)日：2024-02-01
申请号：US18226422
申请日：2023-07-26
Applicant: ELMOS SEMICONDUCTOR SE
Inventor： André SROWIG , Fabian FINKELDEY
CPC classification number: G01J1/44 , G01S7/497 , G01J2001/444 , G01J2001/4466
Abstract: A light receiver circuit with compensation of propagation times has at least one light sensor, one control circuit, one connecting line to a TDC circuit, and a test circuit. The test line is connected to a test signal source. The test circuit connects the test line to the control circuit and forwards the test signal to the control circuit. The control circuit routes a measurement signal of the light sensor to the TDC circuit and a test signal to the connecting line and to the TDC circuit to evaluate the test signal and propagation time of test signal from test circuit to TDC circuit. The light sensor array further includes a plurality of light receiver circuits of such kind. The invention also relates to a Lidar receiver for capturing optical events with a light sensor array with a TDC circuit and a test signal source and with a timecode generator.
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128.发明公开公开(公告)号：US20240027352A1
公开(公告)日：2024-01-25
申请号：US18225594
申请日：2023-07-24
Applicant: Beckman Coulter, Inc.
Inventor： Brian Kozicki , Creigh Thompson , Richard Wolf , Laura Holmes , David Sorrentino
CPC classification number: G01N21/76 , G01N21/27 , G01J1/44 , G01N21/272 , G01N2201/022 , G01J2001/444 , G01N2201/12753
Abstract: Assays (100) may be performed with a luminometer (400) having a chassis (405) that may include a reaction vessel chamber (610). The luminometer (400) may also include a light passage (640) that intersects the reaction vessel chamber (610). The luminometer (400) may also include a cap (415) that, when in a closed configuration, prevents light emitted by external sources from entering the reaction vessel chamber (610) and from entering the light passage (640). The cap (415) may provide access to the reaction vessel chamber (610) when in an open configuration. The luminometer (400) may also include a calibration light source (460) optically coupled to one end of the light passage (640) and a light detector (630) optically coupled to another end of the light passage (640). The light detector (630) may include a sensing element for receiving light from the light passage (640).
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公开(公告)号：US20240019299A1
公开(公告)日：2024-01-18
申请号：US18353225
申请日：2023-07-17
Applicant: Dymax Corporation
Inventor： Stephen P. Simonin , Walter Lin , William Anderson , David Barkus
CPC classification number: G01J1/429 , G01J1/0414 , G01J1/44 , G01J2001/444
Abstract: According to an aspect, a UV radiometer is provided. The UV radiometer includes a sensor assembly and a sensor controller. The sensor assembly includes a UV sensor element and a temperature sensing component configured to perform a thermal adjustment of a sensed UV input from the UV sensor element to produce a compensated UV signal. The sensor controller includes a signal conditioning circuit configured to receive the compensated UV signal from the sensor assembly and produce a conditioned and compensated UV signal. The sensor controller also includes a communication interface configured to transmit the conditioned and compensated UV signal to a UV process controller.
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130.发明公开公开(公告)号：US20230422376A1
公开(公告)日：2023-12-28
申请号：US18212994
申请日：2023-06-22
Applicant: Lutron Technology Company LLC
Inventor： Horace C. Ho , Jason E. Lewis , David J. Knapp
IPC: H05B47/10 , G01J3/46 , G01J3/50 , G01J1/02 , G01J3/02 , H05B45/22 , H05B45/24 , H05B47/24 , H05B47/21 , H05B45/12 , G01J1/32 , G01J1/42 , G01R31/44
CPC classification number: H05B47/10 , G01J3/465 , G01J3/505 , G01J1/0252 , G01J3/0286 , H05B45/22 , H05B45/24 , H05B47/24 , H05B47/22 , H05B45/12 , G01J1/32 , G01J1/42 , G01R31/44 , G01J2001/4252 , G01J2001/444
Abstract: An illumination device and method are provided herein for calibrating individual LEDs in the illumination device to obtain a desired luminous flux and a desired chromaticity of the device over changes in drive current, temperature, and over time as the LEDs age. The calibration method may include subjecting the illumination device to a first ambient temperature, successively applying at least three different drive currents to a first LED to produce illumination at three or more different levels of brightness, obtaining a plurality of optical measurements from the illumination produced by the first LED at each of the at least three different drive currents, obtaining a plurality of electrical measurements from the photodetector and storing results of the obtaining steps within the illumination device to calibrate the first LED at the first ambient temperature. The plurality of optical measurements may generally include luminous flux and chromaticity, the plurality of electrical measurements may generally include induced photocurrents and forward voltages, and the calibration method steps may be repeated for each LED included within the illumination device and upon subjecting the illumination device to a second ambient temperature.
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