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公开(公告)号：CN103776547B
公开(公告)日：2016-04-13
申请号：CN201410066672.2
申请日：2014-02-26
Applicant: 中国科学院上海微系统与信息技术研究所
IPC: G01J5/20
CPC classification number: G01J1/4257 , G01J1/08 , G01J1/4228 , G01J3/42 , G01J2001/083
Abstract: 本发明提供一种太赫兹量子阱探测器绝对响应率的标定方法及装置，所述装置至少包括：驱动电源、单频激光源、光学镜、太赫兹阵列探测器、太赫兹功率计、电流放大器及示波器。所述标定方法采用功率可测定的单频激光源作为标定光源，得到探测器在该激光频率处的绝对响应率参数，利用探测器的归一化光电流谱可进一步计算得到探测器在其任意可探测频率处的绝对响应率参数。本发明直接采用周期输出的单频激光源作为标定光源，采用太赫兹阵列探测器和功率计直接测量来获得被标定探测器的入射功率，极大地减小了传统标定方法中背景光、水汽吸收的影响，避免了各种谱积分的复杂计算，整个标定过程简单，引入误差小，具有广泛适用性。
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12.发明公开
公开(公告)号：EP2938976A1
公开(公告)日：2015-11-04
申请号：EP13826760.4
申请日：2013-11-25
Applicant: Koninklijke Philips N.V. , Philips GmbH
Inventor： AUBERT, Xavier, Louis, Marie, Antoine , BARBIERI, Mauro , MAASS, Henning , MÜSCH, Guido, Josef , NOERTEMANN, Folke, Charlotte , MOST, Elsa, Inger, Stapel , VELTHOVEN, Leo, Jan
CPC classification number: G01J1/08 , G01J1/4204 , G01J2001/083
Abstract: The present invention relates to a light sensing system for sensing ambient light intensity, comprising a light sensing device with at least one light sensor and a calibration device for calibrating the sensor. The calibration device comprises at least one light source that emits light with a standard intensity. The invention is further related to a corresponding method for calibrating a light sensing device, comprising the illumination of the light sensor of the light sensing device with light that has a standard intensity, the comparison of the output intensity signal of the sensor with an expected signal that corresponds to the standard intensity, and the matching of the output intensity signal of the sensor to the expected signal by adjusting a gain parameter of the sensor.
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公开(公告)号：EP3128348B1
公开(公告)日：2018-08-15
申请号：EP16172581.7
申请日：2016-06-02
Applicant: SICK AG
Inventor： Hörsch, Ingolf , Merettig, Gerhard , Bergbach, Roland , Lang, Felix , Leuker, Günter
CPC classification number: G01J1/08 , G01J1/0209 , G01J1/0266 , G01J2001/083 , G01S7/4815 , G01S17/026 , G01V8/10 , G01V8/20 , H01L25/167 , H01L31/00
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公开(公告)号：US20180306639A1
公开(公告)日：2018-10-25
申请号：US15767971
申请日：2016-10-13
Applicant: ams AG
Inventor： David MEHRL
CPC classification number: G01J1/08 , G01J1/4204 , G01J2001/083 , G09G3/3406 , G09G2320/0693 , G09G2360/144
Abstract: An assembly line in-situ calibration arrangement, optical sensor arrangement and a method for calibration of an optical sensor arrangement are presented. A calibration arrangement comprises a calibration head comprising at least one calibrated light source located behind an aperture in a housing and being electrically connected to a power terminal. A power source is connected to the power terminal, the power source comprising a switching unit electrically connected to the at least one light source. An interface unit is connected to the switching unit by means of an interface connection, wherein the interface unit is arranged to control the switching unit. A control unit is connected to the interface unit, wherein the control unit is arranged to drive the interface unit such that the at least one light source is switched to emit a calibration pulse sequence to be received by the optical sensor arrangement to be placed with respect of the aperture. The calibration pulse sequence is arranged to initiate a calibration mode of operation of the optical sensor arrangement.
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15.发明申请公开(公告)号：US20170276548A1
公开(公告)日：2017-09-28
申请号：US15081244
申请日：2016-03-25
Applicant: Harris Corporation
Inventor： David Stanley SMITH , Paul MAURER
CPC classification number: G01J5/62 , G01J1/044 , G01J1/08 , G01J5/0834 , G01J5/12 , G01J5/522 , G01J2001/083 , G01J2005/0048
Abstract: A method of estimating non-linearity in a response of an optical detector comprises emitting optical radiation at different intensities. The method includes, at each intensity: amplitude modulating the emitted optical radiation at a modulating frequency to produce amplitude modulated optical radiation; detecting the amplitude modulated optical radiation with the optical detector to produce a detected waveform; and generating a Fourier transform of the detected waveform that includes a fundamental frequency equal to the modulating frequency and harmonics thereof. The method further includes estimating the non-linearity in the response of the optical detector based on a change in an amplitude of a second harmonic of the fundamental frequency relative to an amplitude of the fundamental frequency across the Fourier transforms corresponding to the different intensities.
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Patent Agency Ranking
公开(公告)号：US07061001B2
公开(公告)日：2006-06-13
申请号：US10608965
申请日：2003-06-27
Applicant: Vishal Chaudhary , Badi Ebrahimifard
Inventor： Vishal Chaudhary , Badi Ebrahimifard
IPC: H04N5/335
CPC classification number: G01J1/08 , G01J2001/083 , G01N2201/12723
Abstract: A method and apparatus for troubleshooting a plurality of photosensors in a machine, such as a mail sorter and mail inserter. The troubleshooting procedure is carried out by a software program. As each photosensor comprises a photo-detector and an associated light emitter for illuminating the photo-detector, the test is based on the output voltage of the photo-detector in response to a current value on the light emitter. Based on the two or more current values set to the light emitter and the corresponding measured output voltage values, the software program determines whether the photosensor is functional. If the photosensor is not functional, possible causes and suggested remedies are provided to the operator of the machine.
Abstract translation: 一种用于对诸如邮件分类器和邮件插入器的机器中的多个光电传感器进行故障排除的方法和装置。 故障排除步骤由软件程序执行。 由于每个光传感器包括用于照射光检测器的光检测器和相关联的光发射器，所以测试基于响应于光发射器上的电流值的光检测器的输出电压。 基于设置到发光体的两个或多个电流值和相应的测量输出电压值，软件程序确定光电传感器是否功能。 如果光电传感器不起作用，可能会向机器的操作员提供可能的原因和建议的补救措施。
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17.发明申请
公开(公告)号：WO2014102629A1
公开(公告)日：2014-07-03
申请号：PCT/IB2013/060372
申请日：2013-11-25
Applicant: KONINKLIJKE PHILIPS N.V. , PHILIPS DEUTSCHLAND GMBH
Inventor： AUBERT, Xavier, Louis, Marie, Antoine , BARBIERI, Mauro , MAASS, Henning , MÜSCH, Guido, Josef , NOERTEMANN, Folke, Charlotte , MOST, Elsa, Inger, Stapel , VELTHOVEN, Leo, Jan
CPC classification number: G01J1/08 , G01J1/4204 , G01J2001/083
Abstract: The present invention relates to a light sensing system for sensing ambient light intensity, comprising a light sensing device with at least one light sensor and a calibration device for calibrating the sensor. The calibration device comprises at least one light source that emits light with a standard intensity. The invention is further related to a corresponding method for calibrating a light sensing device, comprising the illumination of the light sensor of the light sensing device with light that has a standard intensity, the comparison of the output intensity signal of the sensor with an expected signal that corresponds to the standard intensity, and the matching of the output intensity signal of the sensor to the expected signal by adjusting a gain parameter of the sensor.
Abstract translation: 本发明涉及一种用于感测环境光强度的光感测系统，包括具有至少一个光传感器的光感测装置和用于校准传感器的校准装置。 校准装置包括发射具有标准强度的光的至少一个光源。 本发明还涉及用于校准光感测装置的相应方法，包括用具有标准强度的光照射光感测装置的光传感器，将传感器的输出强度信号与预期信号进行比较 对应于标准强度，以及通过调节传感器的增益参数，将传感器的输出强度信号与预期信号进行匹配。
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公开(公告)号：WO2014025824A2
公开(公告)日：2014-02-13
申请号：PCT/US2013053856
申请日：2013-08-06
Applicant: SKORPIOS TECHNOLOGIES INC
Inventor： STONE ROBERT J , KRASULICK STEPHEN B
IPC: H04B17/00
CPC classification number: G01J1/08 , G01J1/42 , G01J2001/083 , G01J2001/4247 , G01R31/3187 , H04B10/035 , H04B10/0731 , H04B10/0779 , H04B17/0082
Abstract: A photonics system includes a transmit photonics module and a receive photonics module. The photonics system also includes a transmit waveguide coupled to the transmit photonics module, a first optical switch integrated with the transmit waveguide, and a diagnostics waveguide optically coupled to the first optical switch. The photonics system further includes a receive waveguide coupled to the receive photonics module and a second optical switch integrated with the receive waveguide and optically coupled to the diagnostics waveguide.
Abstract translation: 光子系统包括发射光子模块和接收光子模块。 光子系统还包括耦合到发射光子模块的发射波导，与发射波导集成的第一光开关，以及光耦合到第一光开关的诊断波导。 光子系统还包括耦合到接收光子模块的接收波导和与接收波导集成并与光学耦合到诊断波导的第二光开关。
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公开(公告)号：US20240247977A1
公开(公告)日：2024-07-25
申请号：US18564177
申请日：2022-03-31
Applicant: ams-OSRAM International GmbH
Inventor： Gerd PLECHINGER
CPC classification number: G01J1/08 , G01J1/44 , G01J2001/083 , G01J2001/446
Abstract: A measurement method for characterization of a photodetector includes illumination of the photodetector with a variable electromagnetic radiation. The variable electromagnetic radiation has a temporally oscillating radiation intensity with fixed period and amplitude. The method also includes illumination of the photodetector with a first electromagnetic radiation having a temporally constant first radiation intensity and measurement of a first output signal at the photodetector. The method further includes illumination of the photodetector with a second electromagnetic radiation having a temporally constant second radiation intensity different from the first radiation intensity and measurement of a second output signal at the photodetector. The method additionally includes determination of a non-linearity of the photodetector by comparing the measurements of the first and second output signals.
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20.发明申请公开(公告)号：US20180216994A1
公开(公告)日：2018-08-02
申请号：US15121520
申请日：2014-04-30
Applicant: Zhiyong TAN , Juncheng CAO , Li GU , Yonghao ZHU
Inventor： Zhiyong TAN , Juncheng CAO , Li GU , Yonghao ZHU
CPC classification number: G01J1/4257 , G01J1/08 , G01J1/4228 , G01J3/42 , G01J2001/083
Abstract: A calibration method for an absolute responsivity of a terahertz quantum well detector and a calibration device thereof, in which the device at least comprises: a driving power supply, a single frequency laser source, an optic, a terahertz array detector, a terahertz dynamometer, a current amplifier and an oscilloscope. The calibration method adopts a power detectable single frequency laser source as a calibration photosource, to obtain the absolute responsivity parameters of the detector at the laser frequency; a normalized photocurrent spectrum of the detector is used to further calculate the absolute responsivity parameters of the detector at any detectable frequency. the single frequency laser source with periodically output is adopted as a calibration photosource, the terahertz array detector and the dynamometer are adopted to directly measure and obtain the incident power of the calibrated detector.
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