公开(公告)号：US20140110572A1

公开(公告)日：2014-04-24

申请号：US14057679

申请日：2013-10-18

Applicant: The Hong Kong University of Science and Technology

Inventor： Yu LI ,  Shaoqi FENG ,  Yu ZHANG ,  Andrew Wing On POON

IPC: G01J1/04

CPC classification number: G01J1/0209 ,  G01J1/0425 ,  G01J2001/446 ,  G02B6/12007 ,  G02B6/29341 ,  G02F1/0147 ,  G02F1/025 ,  G02F2201/58 ,  G02F2203/15 ,  G02F2203/585

Abstract: An integrated silicon optical device is capable of being monitored and tuned in real-time. The integrated silicon optical device includes: a bus waveguide, comprising an input port and an output port; an optical microresonator coupled to the bus waveguide, configured to selectively receive light at a desired resonance wavelength from the bus waveguide; a photodetector, configured to electrically read out an operation condition of the optical microresonator; a diode-tuner, configured to blueshift or redshift the resonance wavelength of the optical microresonator; a micro-heater, configured to redshift the resonance wavelength of the optical microresonator; and a control unit, comprising a transimpedance amplifier (TIA) and a microprocessor, configured to implement a two-stage closed-loop tuning scheme.

Abstract translation: 集成硅光学器件能够被实时监控和调谐。 集成硅光学器件包括：总线波导，包括输入端口和输出端口; 耦合到所述总线波导的光学微谐振器，被配置为选择性地接收来自所述总线波导的期望谐振波长的光; 光电检测器，被配置为电读出光学微谐振器的操作条件; 二极管调谐器，被配置为蓝移或红移所述光学微谐振器的谐振波长; 配置为红移所述光学微谐振器的共振波长的微加热器; 以及控制单元，包括跨阻抗放大器（TIA）和微处理器，被配置为实现两级闭环调谐方案。

公开(公告)号：US08592745B2

公开(公告)日：2013-11-26

申请号：US12859016

申请日：2010-08-18

Applicant: Gianlorenzo Masini ,  Subal Sahni

Inventor： Gianlorenzo Masini ,  Subal Sahni

IPC: G02B6/12 ,  H01J40/14 ,  H04B10/00

CPC classification number: H04B10/60 ,  G01J1/44 ,  G01J2001/446 ,  H01L31/022408 ,  H01L31/028 ,  H01L31/03682 ,  H01L31/1105 ,  H03F3/08

Abstract: A method and system for optoelectronic receivers utilizing waveguide heterojunction phototransistors (HPTs) integrated in a CMOS SOI wafer are disclosed and may include receiving optical signals via optical fibers operably coupled to a top surface of the chip. Electrical signals may be generated utilizing HPTs that detect the optical signals. The electrical signals may be amplified via voltage amplifiers, or transimpedance amplifiers, the outputs of which may be utilized to bias the HPTs by a feedback network. The optical signals may be coupled into opposite ends of the HPTs. A collector of the HPTs may comprise a silicon layer and a germanium layer, a base may comprise a silicon germanium alloy with germanium composition ranging from 70% to 100%, and an emitter including crystalline or poly Si or SiGe. The optical signals may be demodulated by communicating a mixer signal to a base terminal of the HPTs.

Abstract translation: 公开了一种利用集成在CMOS SOI晶片中的波导异质结光电晶体管（HPT）的光电子接收器的方法和系统，并且可以包括通过可操作地耦合到芯片顶表面的光纤接收光信号。 可以利用检测光信号的HPT产生电信号。 电信号可以经由电压放大器或跨阻放大器来放大，其输出可用于通过反馈网络偏置HPT。 光信号可以耦合到HPT的相对端。 HPT的集电极可以包括硅层和锗层，碱可以包括具有70％至100％的锗组成的硅锗合金，以及包括晶体或多晶硅或SiGe的发射极。 可以通过将混合器信号传送到HPT的基站来解调光信号。

公开(公告)号：US20100060562A1

公开(公告)日：2010-03-11

申请号：US12524021

申请日：2008-04-21

Applicant: Benjamin James Hadwen ,  Christopher James Brown ,  Michael Paul Coulson ,  Patrick Zebedee

Inventor： Benjamin James Hadwen ,  Christopher James Brown ,  Michael Paul Coulson ,  Patrick Zebedee

IPC: G09G3/36 ,  G01J1/16 ,  H05B37/02

CPC classification number: H01L31/153 ,  G01J1/4228 ,  G01J1/44 ,  G01J1/46 ,  G01J2001/444 ,  G01J2001/446 ,  G02F1/13318 ,  G02F2001/133626 ,  H01L31/02164 ,  H01L31/03682 ,  H01L31/105

Abstract: A method is provided of compensating for stray light in a light sensor having a detection photosensor (7) and a reference photosensor (20), the reference photosensor (7) being for use in compensating for stray light falling on the detection photosensor (20). The method comprises using the reference photosensor (20) at least in part to determine a bias voltage applied to the detection photosensor (7). Based on this method, a display device is provided comprising a backlight and a light sensor for determining an ambient light level with the effects of stray light from the backlight substantially removed, with means provided for controlling the intensity of the backlight in dependence upon the determined ambient light level.

Abstract translation: 提供一种补偿具有检测光传感器（7）和参考光电传感器（20）的光传感器中的杂散光的方法，所述参考光传感器（7）用于补偿落在检测光传感器（20）上的杂散光， 。 该方法包括至少部分地使用参考光传感器（20）来确定施加到检测光传感器（7）的偏置电压。 基于该方法，提供了一种显示装置，其包括背光和光传感器，用于利用来自背光的杂散光的效果基本上被去除来确定环境光级，具有根据所确定的背景来控制背光的强度的装置 环境光级别。

公开(公告)号：US5034606A

公开(公告)日：1991-07-23

申请号：US482894

申请日：1990-02-22

Applicant: Kazuaki Ohkubo ,  Yoshihiro Ohno

Inventor： Kazuaki Ohkubo ,  Yoshihiro Ohno

IPC: G01J1/08 ,  G01J1/42 ,  G01J1/44

CPC classification number: G01J1/08 ,  G01J1/429 ,  G01J2001/446

Abstract: A method and apparatus for measuring a single-wavelength irradiance employ (1) a reference photosensor unit combining a photodiode having an absolute response at a given wavelength calibrated by a self-calibration process and a precision aperture, (2) a single radiation source of the given wavelength combining a band-pass filter having a pass band only near the given wavelength and a radiation source for producing a line spectrum radiation of the given wavelength, and (3) a radiation illuminometer. The reference photosensor unit is arranged at a distance d from the single radiation source to measure the irradiance thereat, and then the radiation illuminometer is arranged at the position of the reference photosensor unit to calibrate an indicating scale of the radiation illuminometer with respect to the single radiation of the given wavelength in relation with the reference photosensor unit.

Abstract translation: 用于测量单波长辐照度的方法和装置使用（1）组合具有通过自校准过程校准的给定波长的绝对响应的光电二极管和精确孔径的参考光电传感器单元，（2）单个辐射源 给定波长组合具有仅在给定波长附近的通带的带通滤波器和用于产生给定波长的线谱辐射的辐射源，以及（3）辐射照度计。 参考光电传感器单元布置在与单个辐射源距离d处，以测量其上的辐照度，然后将辐射照度计布置在参考光电传感器单元的位置，以相对于单个辐射源校准辐射照度计的指示刻度 相对于参考光电传感器单元的给定波长的辐射。

公开(公告)号：US4979123A

公开(公告)日：1990-12-18

申请号：US199765

申请日：1988-05-27

Applicant: Keun Y. Yang

Inventor： Keun Y. Yang

IPC: G01N21/62 ,  G01J1/44 ,  G01J3/06 ,  G01J3/18 ,  G01J3/28 ,  G01J3/32 ,  G01J3/36 ,  G01J3/443 ,  G01N21/67

CPC classification number: G01J3/06 ,  G01J3/28 ,  G01J3/36 ,  G01N21/67 ,  G01J2001/446 ,  G01J2003/2866 ,  G01J2003/2893

Abstract: An apparatus for determining concentrations of mineral elements comprising an improved spectrometer wherein the spectrometer functions to diffract the light to be measured by means of a rotary grating and to determine the strength of light by using a single PM tube and further detects the wavelength of the diffracted light, by using a laser beam generator, reflective mirrors, photo diodes so as to analyze the composition and the concentration of mineral elements.

Abstract translation: 一种用于确定矿物元素浓度的装置，包括改进的光谱仪，其中光谱仪用于通过旋转光栅衍射待测量的光并通过使用单个PM管确定光的强度，并进一步检测衍射的波长 光，通过使用激光束发生器，反射镜，光电二极管，以分析矿物元素的组成和浓度。

公开(公告)号：US4865446A

公开(公告)日：1989-09-12

申请号：US167121

申请日：1988-03-11

Applicant: Takemi Inoue ,  Ichiro Yokoshima

Inventor： Takemi Inoue ,  Ichiro Yokoshima

IPC: H01S3/00 ,  G01J1/02 ,  G01J1/04 ,  G01J1/42 ,  G01J1/44

CPC classification number: G01J1/04 ,  G01J1/0425 ,  G01J1/4257 ,  G01J2001/4261 ,  G01J2001/446

Abstract: A laser power and energy meter has a target surface provided with at least one pin hole for passing a small portion of the laser beam impinging thereon and further has a light detector positioned in the path of the laser light passing through the pin hole. The target surface is moved horizontally and vertically to cause the laser beam to scan the target surface and the center of the laser beam is aligned with the center of the target surface.

Abstract translation: 激光功率和能量计具有设置有至少一个针孔的目标表面，用于使照射在其上的激光束的一小部分通过，并且还具有定位在通过针孔的激光的路径中的光检测器。 目标表面水平和垂直移动，使激光束扫描目标表面，激光束的中心与目标表面的中心对准。

公开(公告)号：US4845647A

公开(公告)日：1989-07-04

申请号：US694423

申请日：1985-01-24

Applicant: Ray R. Dils ,  Alan K. Winslow

Inventor： Ray R. Dils ,  Alan K. Winslow

IPC: G01J5/10 ,  G01J1/44 ,  G01J5/00 ,  G01J5/06 ,  G01J5/08 ,  G01J5/52 ,  G01J5/60

CPC classification number: G01J5/08 ,  G01J5/0821 ,  G01J5/602 ,  G01J2001/4406 ,  G01J2001/446 ,  G01J2005/0048 ,  G01J2005/068 ,  G01J2005/607 ,  G01J5/52

Abstract: A system for measuring temperature within a region to be tested includes a sensor means responsive to the temperature within the region for transmitting light energy along an optically-transmissive path and detector and amplifier means responsive to the light energy for producing an output signal which represents the intensity of the light energy. A signal processor electronically calculates a display signal from the output signal which represents the temperature within the test region. The signal processor performs this calcuation by solving Planck's equation, and a successive bisection technique is utilized to achieve extremely fine resolution of the temperature.

Abstract translation: 用于测量要测试的区域内的温度的系统包括响应于该区域内的温度以沿着光学透射路径传输光能的传感器装置，响应于光能的检测器和放大器装置产生表示 光能的强度。 信号处理器电子地计算来自表示测试区域内的温度的输出信号的显示信号。 信号处理器通过求解普朗克方程来执行该计算，并采用连续的二分法来实现极高的温度分辨率。

公开(公告)号：US4793704A

公开(公告)日：1988-12-27

申请号：US34153

申请日：1987-01-28

Applicant: Bo Hagner

Inventor： Bo Hagner

IPC: G01J1/44

CPC classification number: G01J1/44 ,  G01J2001/446

Abstract: In an instrument for the detection of ultra-violet radiation, visible light or infrared radiation an electric coupling is known, which comprises a photo-diode of silicon or germanium, a measurement resistor, over which generated photo-electric current generates a voltage, and a voltmeter with low leakage current for measuring the voltage generated. For rendering possible a less expensive, simpler and safer structural design than the designs known and commercially available, it is proposed that the measurement resistor R.sub.A and the calibrated voltmeter V each are connected in parallel over the photo-diode.

Abstract translation: PCT No.PCT / SE86 / 00325 Sec。 371日期1987年1月28日 102（e）日期1987年1月28日PCT提交1986年7月4日PCT公布。 公开号WO87 / 00271 日期1987年1月15日。在用于检测紫外辐射，可见光或红外辐射的仪器中，已知电耦合，其包括硅或锗的光电二极管，测量电阻器， 电流产生电压，并具有低漏电流的电压表，用于测量产生的电压。 为了使可能比已知和市售的设计更便宜，更简单和更安全的结构设计，建议测量电阻器RA和校准电压表V各自通过光电二极管并联连接。

公开(公告)号：US12123774B1

公开(公告)日：2024-10-22

申请号：US18139232

申请日：2023-04-25

Applicant: Avago Technologies International Sales Pte. Limited

Inventor： Junjie Lu ,  Jing Guo ,  Leon Samuel Wang ,  Xiaofeng Lin ,  Xicheng Jiang

IPC: G01J1/46 ,  G01J1/44

CPC classification number: G01J1/46 ,  G01J2001/4406 ,  G01J2001/446

Abstract: An apparatus for detecting optical signals includes a photodetector. The photodetector is reverse-biased by a first voltage and a second voltage is added to the first voltage to provide an offset equal to the second voltage for the photodetector. A first circuit is coupled to the first circuit to provide the second voltage for the photodetector and a second circuit is coupled to the first circuit to provide the first voltage to the photodetector to reverse-bias the photodetector. The second circuit provides an output voltage proportional to a current of the photodetector at an output of the second circuit.

公开(公告)号：US12123771B2

公开(公告)日：2024-10-22

申请号：US17792285

申请日：2020-12-08

Applicant: ams Sensors Belgium BVBA

Inventor： Adi Xhakoni

IPC: G01J1/44 ,  H04N23/11 ,  H04N25/40 ,  H04N25/771 ,  H04N25/772 ,  H04N25/79

CPC classification number: G01J1/44 ,  H04N23/11 ,  H04N25/40 ,  H04N25/771 ,  H04N25/772 ,  H04N25/79 ,  G01J2001/446

Abstract: A pixel cell comprises a plurality of pixels, each pixel comprising a photodiode, a readout circuit comprising a first readout component and a second readout component, wherein a first group of the pixels is configured to detect electromagnetic radiation in a first wavelength range, a second group of the pixels is configured to detect electromagnetic radiation in a second wavelength range, the first readout component is connected with the first group of pixels, the second readout component is connected with the second group of pixels, the first wavelength range is different from the second wavelength range, and the second readout component comprises a plurality of storage capacitors, wherein each pixel of the second group of pixels is assigned to at least one of the storage capacitors, or the second readout component comprises a memory element. Furthermore, a method for operating a pixel cell is provided.