公开(公告)号：US20190234870A1

公开(公告)日：2019-08-01

申请号：US16232318

申请日：2018-12-26

Applicant: NUCTECH COMPANY LIMITED

Inventor： Ziran ZHAO ,  Haifan Hu ,  Xuming Ma ,  Yingxin Wang

IPC: G01N21/3581 ,  G01J1/44

CPC classification number: G01N21/3581 ,  G01J1/0411 ,  G01J1/42 ,  G01J1/44 ,  G01J2001/4466 ,  G01J2001/448

Abstract: The present disclosure provides a terahertz detector. The terahertz detector includes a planar array structure that is constituted by a plurality of pixel units, the plurality of pixel units each include N sub pixels and each of the sub pixels includes no more than one signal trigger configured to transform a terahertz signal to an electrical current pulsing signal, and each of the plurality of pixel units detects a signal that is a sum of the electrical current pulsing signals of the N sub pixels, where N is an integer greater than 1.

公开(公告)号：US20180156659A1

公开(公告)日：2018-06-07

申请号：US15368579

申请日：2016-12-03

Applicant: Waymo LLC

Inventor： Pierre-Yves DROZ ,  David HUTCHISON

IPC: G01J1/04 ,  G02B6/08 ,  G01S7/481

CPC classification number: G01J1/0425 ,  G01J1/0411 ,  G01J1/0414 ,  G01J1/0437 ,  G01J2001/4466 ,  G01S7/4816 ,  G01S7/4818 ,  G01S17/89 ,  G02B6/08

Abstract: The present disclosure relates to limitation of noise on light detectors using an aperture. One example implementation includes a system. The system includes a lens disposed relative to a scene. The lens focuses light from the scene. The system also includes an aperture defined within an opaque material. The system also includes a waveguide having a first side that receives light focused by the lens and transmitted through the aperture. The waveguide guides the received light toward a second side of the waveguide opposite to the first side. The waveguide has a third side extending between the first side and the second side. The system also includes an array of light detectors that intercepts and detects light propagating out of the third side of the waveguide.

公开(公告)号：US09978885B1

公开(公告)日：2018-05-22

申请号：US15227500

申请日：2016-08-03

Applicant: Evgeny N. Kuznetsov

Inventor： Evgeny N. Kuznetsov

IPC: G01T1/24 ,  H01L31/02 ,  H01L27/146 ,  G01J1/44

CPC classification number: H01L31/02027 ,  G01J1/44 ,  G01J2001/444 ,  G01J2001/4466 ,  G01J2001/448 ,  H01L27/14634 ,  H01L27/14643

Abstract: A silicon photomultiplier (SiPM) device is provided with a SiPM matrix fabricated on a substrate, a bias power supply connected to the SiPM matrix, and a compensation circuit coupled to the bias power supply. The bias power supply provides a bias voltage to the SiPM matrix. The compensation circuit can adjust the bias voltage applied to the SiPM matrix in response to temperature changes at the substrate. The compensation circuit includes a resistor fabricated on the substrate with the SiPM matrix. The resistor can have a resistance that varies in response to temperature changes at the substrate.

公开(公告)号：US20180120931A1

公开(公告)日：2018-05-03

申请号：US15844651

申请日：2017-12-18

Applicant: APPLE INC.

Inventor： Alexander Shpunt ,  Raviv Erlich

IPC: G06F3/01 ,  G01S7/481 ,  G01S7/486 ,  G01S17/89 ,  G01S17/42

CPC classification number: G06F3/011 ,  B23P19/04 ,  G01J1/0411 ,  G01J1/44 ,  G01J2001/4466 ,  G01S7/4812 ,  G01S7/4817 ,  G01S7/4865 ,  G01S7/4868 ,  G01S17/10 ,  G01S17/42 ,  G01S17/89 ,  G02B27/0961 ,  G06T15/00 ,  H01S3/0071 ,  H01S5/02248 ,  H01S5/02288 ,  H01S5/02296 ,  H01S5/4012 ,  H01S5/4075 ,  H01S5/423 ,  Y10T29/49002

Abstract: Mapping apparatus includes a transmitter, which is configured to emit at least one beam including a sequence of pulses of light toward a plurality of points in a scene. A receiver is configured to receive the light reflected from the scene and to generate an output indicative of a time of flight of the pulses to and from the points in the scene. A processor is coupled to process the output of the receiver so as to generate a 3D map of the scene, while controlling a power level of the pulses emitted by the transmitter responsively to a level of the output from the receiver in response to one or more previous pulses.

公开(公告)号：US09939316B2

公开(公告)日：2018-04-10

申请号：US15051833

申请日：2016-02-24

Applicant: STMICROELECTRONICS (RESEARCH & DEVELOPMENT) LIMITED

Inventor： Iain Scott ,  Sam Lee

IPC: G01J1/02 ,  G01C3/08 ,  G01J1/44 ,  H01L31/02 ,  H01L31/107

CPC classification number: G01J1/0266 ,  G01C3/08 ,  G01J1/44 ,  G01J2001/4466 ,  G01S7/4863 ,  G01S7/4865 ,  G01S7/497 ,  G01S17/89 ,  H01L31/02027 ,  H01L31/107

Abstract: A sensing apparatus includes a sensor and a processor. The sensor includes at least one light sensitive detector. The processor determines a first control value to control a voltage differential across the at least one light sensitive detector, and compares the first control value with a reference value associated with a reference temperature. Based on the comparison, the processor provides adjustment information for adjusting at least one output of the sensing apparatus, and an operating parameter of the sensing apparatus other than the voltage differential.

公开(公告)号：US20180019825A1

公开(公告)日：2018-01-18

申请号：US15538075

申请日：2015-02-23

Applicant: Mitsubishi Electric Corporation

Inventor： Satoshi SHIRAI ,  Masaki NODA

IPC: H04B10/69 ,  G01J1/44

CPC classification number: H04B10/6911 ,  G01J1/44 ,  G01J2001/4406 ,  G01J2001/4466 ,  H01J40/14 ,  H03G3/20 ,  H03G3/3084 ,  H04B10/152 ,  H04B10/40 ,  H04B10/69

Abstract: A light receiving device that receives a light signal includes: a plurality of avalanche photodiodes, in each of which receiving sensitivity is set in accordance with a bias signal that is provided; a plurality of level conversion units provided in association with the avalanche photodiodes, each of the level conversion units being configured to convert a level of a reference voltage for obtaining the bias signal so as to generate the bias signal and being configured to provide the bias signal to corresponding one of the avalanche photodiodes; and a control unit that generates a first control signal corresponding to a temperature of the light receiving device, and controls a level conversion amount of each of the level conversion units by using the first control signal.

公开(公告)号：US20170307441A1

公开(公告)日：2017-10-26

申请号：US15492434

申请日：2017-04-20

Applicant: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY

Inventor： Seong-Ook JUNG ,  Jung Hyun PARK ,  Ki Ryong KIM

IPC: G01J1/44 ,  H01L31/107 ,  H01L27/146

CPC classification number: H01L31/107 ,  G01J2001/442 ,  G01J2001/4466 ,  H01L27/14643 ,  H01L31/02027

Abstract: Disclosed is an apparatus for counting single photons including an edge combiner configured to detect an edge of each of applied clocks using a plurality of Phase-Locked Loops (PLL) to generate a combined signal; a sampling unit configured to sample all events occurring in each SPAD of a single photon detection diode (SPAD) array using an OR tree and an XOR tree; and a calculation unit configured to count the sampled events based on the combined signal to count single photons.

公开(公告)号：US09784612B2

公开(公告)日：2017-10-10

申请号：US14770688

申请日：2014-02-26

Applicant: SOCIÉTÉ FRANǪAISE DE DÉTECTEURS INFRAROUGES—SOFRADIR

Inventor： Eric Sanson

IPC: H01J40/14 ,  G01J1/46 ,  G01J1/44

CPC classification number: G01J1/46 ,  G01J2001/4466

Abstract: An electromagnetic radiation detection circuit includes a photodetector transforming the received electromagnetic radiation into an electric current. A readout circuit is coupled to a first terminal of the photodetector and configured to transform a current signal into a voltage signal. A capacitor has a first terminal electrically coupled to the first terminal of the photodetector and a second terminal electrically coupled to the readout circuit. A resistor has a first terminal electrically coupled to the capacitor and to a first terminal of the photodetector. A bias circuit is electrically coupled to a second terminal of the resistor and configured to bias the photodetector during a first time period by means of the resistor.

公开(公告)号：US09746369B2

公开(公告)日：2017-08-29

申请号：US14846856

申请日：2015-09-07

Applicant: Apple Inc.

Inventor： Alexander Shpunt ,  Zafrir Mor ,  Raviv Erlich

IPC: G02B27/09 ,  G01J1/04 ,  H01S3/00 ,  B23P19/04 ,  G06T15/00 ,  H01S5/022 ,  H01S5/40 ,  H01S5/42 ,  G01S17/10 ,  G01S17/42 ,  G01S17/89 ,  G01S7/481 ,  G01S7/486 ,  G01J1/44

CPC classification number: G06F3/011 ,  B23P19/04 ,  G01J1/0411 ,  G01J1/44 ,  G01J2001/4466 ,  G01S7/4812 ,  G01S7/4817 ,  G01S7/4865 ,  G01S7/4868 ,  G01S17/10 ,  G01S17/42 ,  G01S17/89 ,  G02B27/0961 ,  G06T15/00 ,  H01S3/0071 ,  H01S5/02248 ,  H01S5/02288 ,  H01S5/02296 ,  H01S5/4012 ,  H01S5/4075 ,  H01S5/423 ,  Y10T29/49002

Abstract: A beam generating device includes a semiconductor substrate, having an optical passband. A first array of vertical-cavity surface-emitting lasers (VCSELs) is formed on a first face of the semiconductor substrate and are configured to emit respective laser beams through the substrate at a wavelength within the passband. A second array of microlenses is formed on a second face of the semiconductor substrate, with the microlenses in respective alignment with the VCSELs so as to transmit the laser beams generated by the VCSELs.

公开(公告)号：US20170241832A1

公开(公告)日：2017-08-24

申请号：US15519854

申请日：2015-10-19

Applicant: KUKA INDUSTRIES GMBH & CO. KG.

Inventor： Ansgar SCHÄFER ,  Lars Soeren OTT ,  Klaus R GOEBEL

IPC: G01J1/02 ,  G01J1/44

CPC classification number: G01J1/0228 ,  G01J1/0271 ,  G01J1/42 ,  G01J1/44 ,  G01J2001/0285 ,  G01J2001/4466

Abstract: A method for monitoring radiation by an optical sensor which generates a signal, such as a shut-off signal, which influences the radiation when subjected to radiation. A sensor with dark current pulses is used, which are assessed as a functional capability signal of the sensor.