公开(公告)号：US09954158B2

公开(公告)日：2018-04-24

申请号：US15126125

申请日：2014-05-12

Applicant: SHANGHAI INSTITUTE OF MICROSYSTEM AND INFORMATION TECHNOLOGY, CHINESE ACADEMY OF SCIENCES

Inventor： Lixing You ,  Hao Li ,  Xiaoyan Yang ,  Weijun Zhang ,  Zhen Wang

IPC: G01J1/44 ,  H01L39/16 ,  H01L39/02 ,  H01L31/0232 ,  H01L31/0216 ,  H01L31/09

CPC classification number: H01L39/16 ,  G01J1/0433 ,  G01J1/0488 ,  G01J1/44 ,  G01J2001/442 ,  G01J2005/208 ,  G02B5/28 ,  H01L27/144 ,  H01L31/02165 ,  H01L31/02327 ,  H01L31/09 ,  H01L39/02 ,  H01L39/10

Abstract: A method and a device for reducing the extrinsic dark count of a superconducting nanowire single photon detector (SNSPD), it comprises the steps of: integrating a multi-layer film filter on the superconducting nanowire single photon detector; the multi-layer film filter is a device implemented by a multi-layer dielectric film and having a band-pass filtering function. The extrinsic dark count is the dark count triggered by optical fiber blackbody radiance and external stray light. The superconducting nanowire single photon detector comprises: a substrate having an upper surface integrated with an upper anti-reflection layer and a lower surface integrated with a lower anti-reflection layer; an optical cavity structure; a superconducting nanowire; and a reflector. The present invention is easy to operate, and only needs to integrate the multi-layer film filter on the substrate of the SNSPD to filter non-signal radiation.

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：US20180098009A1

公开(公告)日：2018-04-05

申请号：US15814895

申请日：2017-11-16

Applicant: FUJIFILM Corporation

Inventor： Yoshinori Furuta

IPC: H04N5/365 ,  G01J1/44 ,  G01J1/42 ,  G01J1/04 ,  H04N5/33 ,  H04N5/232

CPC classification number: H04N5/365 ,  G01J1/0411 ,  G01J1/12 ,  G01J1/42 ,  G01J1/4228 ,  G01J1/44 ,  G01J2001/444 ,  G01J2005/0048 ,  G01J2005/0077 ,  G01J2005/068 ,  H04N5/23212 ,  H04N5/33 ,  H04N5/3651 ,  H04N5/3656

Abstract: A signal component amount calculation unit calculates dispersion or standard deviation of multiple times of infrared detection signals detected by each detector element to be processed, and calculates the amount of a signal component dependent on infrared rays incident on the infrared detector included in the infrared detection signals, on the basis of the calculated dispersion or standard deviation. A fixed pattern noise calculation unit calculates the amount of a fixed pattern noise component on the basis of the infrared detection signals and the calculated amount of a signal component. A data update unit updates the fixed pattern noise data with the calculated amount of a fixed pattern noise component.

公开(公告)号：US09933296B2

公开(公告)日：2018-04-03

申请号：US15352317

申请日：2016-11-15

Applicant: Google Inc.

Inventor： Anurag Gupta ,  Aveek Ravishekhar Purohit

IPC: G01J1/04 ,  G01J1/02 ,  G01J1/44 ,  G02B3/00 ,  G02B3/08 ,  G08B13/19 ,  G08B13/193

CPC classification number: G01J1/0411 ,  G01J1/0266 ,  G01J1/44 ,  G02B3/0006 ,  G02B3/08 ,  G08B13/193

Abstract: A passive infrared motion detection sensor that includes a Fresnel focusing arrangement that creates at least a first infrared sensing region, a second infrared sensing region, and a third infrared sensing region, in which target detection in one or more infrared sensing regions is weighted to be distinguishable from target detection in remaining infrared sensing regions. The Fresnel focusing arrangement creates the weighted infrared sensing regions using a lenslet region, an optically opaque region and a plurality of extruded cylindrical lenslets that extend across a portion of both the lenslet region and the optically opaque region. The signal detection in at least the second weighted infrared sensing region, for example, an infrared sensing range between 6 and 10 feet, is weighted to easily distinguish between a pet within the second infrared sensing range and a person at any infrared sensing range.

公开(公告)号：US09927537B2

公开(公告)日：2018-03-27

申请号：US14570458

申请日：2014-12-15

Applicant: General Electric Company

Inventor： Chang Lyong Kim

IPC: G01T1/29 ,  G01J1/44 ,  G01T1/208 ,  G01T1/20

CPC classification number: G01T1/2985 ,  G01J1/44 ,  G01T1/2018 ,  G01T1/208

Abstract: A positron emission tomography (PET) photosensor output circuit configured to be operably coupled to a PET photosensor system is provided that includes a plurality of regional circuit portions and a summing portion. Each regional circuit portion is configured to be operably coupled to a corresponding photosensor system region and includes an input portion, a first branch, and a second branch. The first branch includes a delay unit and a switch. The second branch includes a sensor unit configured to place the switch in a closed position when a signal received via the input portion satisfies a threshold and to place the switch in an open position when the signal received via the input portion does not satisfy the threshold. The summing portion is configured to receive corresponding regional circuit outputs from the regional circuit portions, and to combine the regional circuit outputs to provide a summed output.

公开(公告)号：US09927295B2

公开(公告)日：2018-03-27

申请号：US14843492

申请日：2015-09-02

Applicant: Sung-Shik Yoo ,  Christopher L. Kauffman ,  Phillip R. Minarik

Inventor： Sung-Shik Yoo ,  Christopher L. Kauffman ,  Phillip R. Minarik

IPC: G01J1/46 ,  G01J1/44

CPC classification number: G01J1/46 ,  G01J1/44

Abstract: A circuit includes an input capacitor that stores charge based on a current received from a photodetector during a bias phase of the photodetector. The stored charge on the input capacitor is sampled during the sampling phase to determine an amount of light captured by the photodetector. A bias controller supplies a pulsed-bias voltage to the photodetector to generate the current from the photodetector. The bias controller controls the current to a current level below a predetermined current threshold via the pulsed-bias voltage before biasing of the detector and subsequent sampling of the stored charge on the input capacitor is initiated to mitigate 1/F noise in the photodetector.

公开(公告)号：US20180073921A1

公开(公告)日：2018-03-15

申请号：US15394659

申请日：2016-12-29

Applicant: HISENSE BROADBAND MULTIMEDIA TECHNOLOGIES, CO. LTD. ,  HISENSE BROADBAND MULTIMEDIA TECHNOLOGIES, LTD.

Inventor： QIANG ZHANG ,  QISHENG ZHAO

IPC: G01J1/44 ,  H01L31/103 ,  H01L31/107 ,  G02B6/42

CPC classification number: G01J1/44 ,  G01J2001/4406 ,  G01J2001/446 ,  G02B6/4274 ,  G02B6/4293 ,  H01L31/103 ,  H01L31/107 ,  H04B10/6911

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.

公开(公告)号：US20180066986A1

公开(公告)日：2018-03-08

申请号：US15561190

申请日：2016-03-16

Applicant: HITACHI HIGH-TECHNOLOGIES CORPORATION

Inventor： Yutaka KASAI ,  Fujio ONISHI ,  Osamu TASAKI ,  Hidetsugu TANOUE ,  Kazuhiro TANAKA

IPC: G01J1/44 ,  G01N21/66 ,  G01N23/225 ,  G01T1/164 ,  G01T1/20 ,  G01N21/956

CPC classification number: G01J1/44 ,  G01J1/42 ,  G01J2001/444 ,  G01N21/66 ,  G01N21/956 ,  G01N23/203 ,  G01N23/22 ,  G01N23/225 ,  G01T1/1647 ,  G01T1/20 ,  G01T1/208 ,  H01J37/28

Abstract: A signal detected by a photomultiplier tube is pre-amplified and converted into a digital signal. A time average value of signal components, each of which has a voltage lower than a predetermined base threshold value, is calculated as a base voltage. A signal that has been subjected to base correction processing is subjected to threshold value processing and to base correction processing in a non-incident state in which light is not incident on the photomultiplier tube. An output signal thereof is subjected to dark current calculation processing; and a light emission signal amount is calculated by subtracting, from the signal component of the detection light obtained by the threshold value processing, a time average value of the signal components of the dark current. As the result, discriminating the dark current pulse from floor noises enhances the accuracy of the base voltage, and thus the accuracy of light detection.

公开(公告)号：US09909919B2

公开(公告)日：2018-03-06

申请号：US15515129

申请日：2015-10-14

Applicant: EKO INSTRUMENTS CO., LTD.

Inventor： Toshikazu Hasegawa ,  Akihito Akiyama ,  Naoto Shimada

IPC: G01J1/04 ,  G01J1/42 ,  G01W1/12

CPC classification number: G01J1/0474 ,  G01J1/0271 ,  G01J1/0403 ,  G01J1/42 ,  G01J1/44 ,  G01J2001/4285 ,  G01W1/12

Abstract: The invention provides a pyranometer with a fast response time, a reduced offset amount, and reduced impacts from harsh outside environment and an enhanced long-term stability, as well as an excellent cosine response. The pyranometer has: a silicon-based thermopile sensor, which is sealed airtight in a CAN package and positioned opposed to the receiving surface of the thermopile sensor; and diffusing member that is positioned so as to be opposed to a receiving surface of the thermopile.

公开(公告)号：US20180058927A1

公开(公告)日：2018-03-01

申请号：US15560493

申请日：2015-03-24

Applicant: Otsuka Electronics Co., Ltd.

Inventor： Hisashi SHIRAIWA ,  Hiroyuki SANO

IPC: G01J1/44 ,  G01J1/08 ,  G01J1/04

CPC classification number: G01J1/44 ,  G01J1/0295 ,  G01J1/0407 ,  G01J1/08 ,  G01J3/02 ,  G01J3/0297 ,  G01J3/10 ,  G01J3/28 ,  G01J2001/0481 ,  G01J2001/083 ,  G01J2001/086 ,  G01J2001/444 ,  G01J2003/2866 ,  G01J2003/2876

Abstract: A reference light source device for calibration of a spectral radiance meter includes an integrating sphere having a radiance reference plane, which is an opening; and a plurality of first optical ports, which are formed apart from each other in an outer wall of the integrating sphere to allow light rays with equivalent wavelength characteristics to enter an interior of the integrating sphere.