公开(公告)号：US09310247B2

公开(公告)日：2016-04-12

申请号：US14287445

申请日：2014-05-27

Applicant: STMicroelectronics (Research & Development) Limited

Inventor： Jeffrey M. Raynor ,  Andy Price

IPC: G01J1/44 ,  G01J1/16

CPC classification number: G01J1/1626 ,  G01J1/44 ,  G01J2001/444

Abstract: An imaging circuit includes at least one photosensitive device that provides an output in response to at least one photon and a compensation circuit configured to provide dark current compensation for the output of said photosensitive device. The applied compensation uses temperature information and temperature dependent calibration information.

Abstract translation: 成像电路包括至少一个感光装置，其响应于至少一个光子提供输出，并且补偿电路被配置为为所述感光装置的输出提供暗电流补偿。 所应用的补偿使用温度信息和温度相关校准信息。

公开(公告)号：US09253418B2

公开(公告)日：2016-02-02

申请号：US14005882

申请日：2012-03-09

Applicant: Yoshihisa Warashina ,  Jun Suzuki

Inventor： Yoshihisa Warashina ,  Jun Suzuki

IPC: G01J5/00 ,  G01J5/10 ,  H04N5/33 ,  G01J1/44 ,  G01J5/22 ,  H04N5/217 ,  G01J5/24 ,  G01J5/06 ,  G01J5/20 ,  H04N5/357

CPC classification number: H04N5/33 ,  G01J1/44 ,  G01J5/00 ,  G01J5/10 ,  G01J5/22 ,  G01J5/24 ,  G01J2001/444 ,  G01J2005/0048 ,  G01J2005/0077 ,  G01J2005/066 ,  G01J2005/202 ,  H04N5/217 ,  H04N5/357

Abstract: Provided is an infrared image sensor for detecting infrared rays. The infrared image sensor includes a light-receiving unit including a pixel region in which a plurality of pixels are arranged and at least one reference pixel; a difference circuit for acquiring a first differential signal that is a differential signal between a signal of one pixel contained in the pixel region and a signal of the reference pixel and a second differential signal that is a differential signal between signals of two predetermined pixels out of the pixels contained in the pixel region; and a pixel signal calculating unit that calculates a signal of each of the pixels on the basis of the first differential signal and the second differential signal.

Abstract translation: 提供了一种用于检测红外线的红外图像传感器。 红外图像传感器包括：光接收单元，包括其中布置多个像素的像素区域和至少一个参考像素; 差分电路，用于获取作为像素区域中包含的一个像素的信号与参考像素的信号之间的差分信号的第一差分信号和作为两个预定像素的信号之间的差分信号的第二差分信号 包含在像素区域中的像素; 以及像素信号计算单元，其基于第一差分信号和第二差分信号来计算每个像素的信号。

公开(公告)号：US20160011045A1

公开(公告)日：2016-01-14

申请号：US14772970

申请日：2013-12-24

Applicant: EVERFINE PHOTO-E-INFO CO., LTD.

Inventor： Jiangen PAN

IPC: G01J1/44 ,  G01J1/02

CPC classification number: G01J1/44 ,  G01J1/0233 ,  G01J1/42 ,  G01J3/0272 ,  G01J3/0286 ,  G01J3/0291 ,  G01J3/28 ,  G01J3/36 ,  G01J2001/444

Abstract: The present invention discloses a handheld optical radiation meter and a correction method thereof. The handheld optical radiation meter has a photometric measurement module, a spectral measurement module and a screen. The spectral quantities of the spectral measurement module are employed to correct the spectral mismatch error of the photometric measurement module. With simple configuration, the present invention can realize high accuracy photometry and chromaticity measurement within a wide-span dynamic range, and has the characteristics of complete test functions, high measurement accuracy, convenient operation, low cost, etc.

Abstract translation: 本发明公开了一种手持式光学辐射计及其校正方法。 手持式光学辐射计具有光度测量模块，光谱测量模块和屏幕。 使用光谱测量模块的光谱量来校正光度测量模块的光谱失配误差。 本发明结构简单，可在宽范围动态范围内实现高精度测光和色度测量，具有测试功能齐全，测量精度高，操作方便，成本低等特点。

公开(公告)号：US20150377699A1

公开(公告)日：2015-12-31

申请号：US14314451

申请日：2014-06-25

Applicant: Ketra, Inc.

Inventor： Horace C. Ho ,  Jason E. Lewis ,  David J. Knapp

IPC: G01J1/44

CPC classification number: H05B33/0851 ,  G01J1/0252 ,  G01J1/32 ,  G01J1/42 ,  G01J3/0286 ,  G01J3/465 ,  G01J3/505 ,  G01J2001/4252 ,  G01J2001/444 ,  G01R31/44 ,  H05B33/0866 ,  H05B33/0869 ,  H05B37/02 ,  H05B37/0227

Abstract: An illumination device and method is provided herein for calibrating individual LEDs in the illumination device, so as 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.

Abstract translation: 本文提供一种用于校准照明装置中的各个LED的照明装置和方法，以便随着LED寿命而获得期望的光通量和装置的驱动电流，温度和随时间的变化的期望色度。 校准方法可以包括使照明装置经受第一环境温度，连续地向第一LED施加至少三个不同的驱动电流以产生三个或更多个不同亮度级别的照明，从由以下的照明产生的照明获得多个光学测量值 在所述至少三个不同驱动电流中的每一个处的所述第一LED，从所述光电检测器获得多个电测量值，并且存储所述照明装置内的所述获得步骤的结果，以在所述第一环境温度下校准所述第一LED。 多个光学测量通常可以包括光通量和色度，多个电测量通常可以包括感应光电流和正向电压，并且可以针对包括在照明装置内的每个LED重复校准方法步骤，并且对照明装置 第二个环境温度。

公开(公告)号：US20150369657A1

公开(公告)日：2015-12-24

申请号：US14766667

申请日：2014-02-24

Applicant: NEC CORPORATION

Inventor： Ken-ichiro YOSHINO

IPC: G01J1/04 ,  G01J1/42

CPC classification number: G01J1/0418 ,  G01J1/16 ,  G01J1/26 ,  G01J1/4228 ,  G01J2001/442 ,  G01J2001/444

Abstract: (Object) To provide an optical receiver and a control method thereof that enable equalization of both the quantum efficiencies and the dark count probabilities of multiple photon detectors.(Solving Means) An optical receiver includes multiple photon detectors, a first equalizing means that equalizes either dark count probabilities or quantum efficiencies of the multiple photon detectors, and a second equalizing means that equalizes the other ones without affecting the equalization by the first equalizing means.

Abstract translation: （对象）提供能够均衡多个光子检测器的量子效率和暗计数概率的光接收器及其控制方法。 （解决方案）光接收机包括多个光子检测器，第一均衡装置，其均衡多个光子检测器的暗计数概率或量子效率;以及第二均衡装置，其在不影响第一均衡装置的均衡的情况下均衡其他光子检测器 。

公开(公告)号：US09123611B1

公开(公告)日：2015-09-01

申请号：US14063627

申请日：2013-10-25

Applicant: Jefferson Science Associates, LLC

Inventor： John E. McKisson ,  Fernando Barbosa

IPC: G01J1/44 ,  H01L27/146

CPC classification number: H04N5/3698 ,  G01J1/44 ,  G01J2001/444 ,  G01J2001/4466 ,  H04N5/365

Abstract: A method for designing a completely passive bias compensation circuit to stabilize the gain of multiple pixel avalanche photo detector devices. The method includes determining circuitry design and component values to achieve a desired precision of gain stability. The method can be used with any temperature sensitive device with a nominally linear coefficient of voltage dependent parameter that must be stabilized. The circuitry design includes a negative temperature coefficient resistor in thermal contact with the photomultiplier device to provide a varying resistance and a second fixed resistor to form a voltage divider that can be chosen to set the desired slope and intercept for the characteristic with a specific voltage source value. The addition of a third resistor to the divider network provides a solution set for a set of SiPM devices that requires only a single stabilized voltage source value.

Abstract translation: 一种用于设计完全无源偏置补偿电路以稳定多像素雪崩光电检测器器件的增益的方法。 该方法包括确定电路设计和分量值以实现增益稳定性的期望精度。 该方法可用于具有必须稳定的额定线性系数的电压相关参数的任何温度敏感器件。 电路设计包括与光电倍增器装置热接触以提供变化电阻的负温度系数电阻器和第二固定电阻器，以形成分压器，该电压分压器可被选择以用特定电压源为特性设置所需的斜率和截距 值。 向分频器网络添加第三个电阻为一组仅需要稳定的电压源值的SiPM器件提供解决方案。

公开(公告)号：US20150177055A1

公开(公告)日：2015-06-25

申请号：US14575810

申请日：2014-12-18

Applicant: Jie Lian ,  Nabyl Bennouri ,  Nattapon Chaimanonart

Inventor： Jie Lian ,  Nabyl Bennouri ,  Nattapon Chaimanonart

IPC: G01J1/42 ,  G01J1/04 ,  A61B5/00 ,  G01J1/44

CPC classification number: G01J1/429 ,  A61B5/441 ,  G01J1/0219 ,  G01J1/0233 ,  G01J1/0403 ,  G01J1/44 ,  G01J2001/4266 ,  G01J2001/444 ,  G01T1/02 ,  G06F1/163

Abstract: A UV exposure dosimetry system includes at least one UV sensor that accurately measures the UV irradiance intensity. The UV dosimetry system integrates the measured UV irradiance intensity over time to calculate the real-time UV dosage and the vitamin D production by taking into account factors comprising UV sensor location, body surface area, clothing coverage, and sunscreen usage. Based on the measurement, the system can predict the time remaining to skin burn and the time remaining to reach daily goal of vitamin D production. The system can also provide feedback to the user of the device based on a composite metric assessing the degree of balance between the risk of UV exposure and the benefit of UV exposure. The UV dosimetry system supports multi-user control through an advanced and user friendly input and output interface.

Abstract translation: UV曝光剂量测定系统包括至少一个UV传感器，其精确地测量紫外线辐照强度。 UV剂量测定系统通过考虑到UV传感器位置，体表面积，衣物覆盖率和防晒霜使用量的因素，将测量的紫外线辐照强度随时间整合，以计算实时紫外线剂量和维生素D的生产。 基于测量，该系统可以预测皮肤灼伤的时间和剩余的时间达到维生素D生产的每日目标。 该系统还可以基于评估紫外线暴露的风险与紫外线暴露的好处之间的平衡程度的综合度量来向设备的用户提供反馈。 UV剂量测定系统通过先进且用户友好的输入和输出接口支持多用户控制。

公开(公告)号：US20150168211A1

公开(公告)日：2015-06-18

申请号：US14414718

申请日：2013-08-01

Applicant: NEC CORPORATION

Inventor： Rintaro Nomura

IPC: G01J1/18

CPC classification number: G01J1/18 ,  G01J1/44 ,  G01J2001/186 ,  G01J2001/444 ,  G01J2001/4466 ,  H03M1/1038 ,  H04B10/69

Abstract: The objective of the present invention is to quickly and precisely correct the measured value for light reception power to the actual value with few resources, by installing a correction device for a light reception power monitor for signal light in an optical module. The correction device is equipped with a correction table which is referenced when correcting the measured value for the light reception power of signal light, and in this correction table multiple correction values are stored in advance on the basis of the correspondence relationships between multiple reference values and multiple actual values. In the correction table, for segments wherein the change in the actual values with respect to the change in the measured values is small, the interval between the reference values is made smaller and more correction values are stored than for segments wherein the change in the actual values with respect to the change in the measured values is large. When an input value indicating the measured value for the light reception power of the signal light matches a reference value in the correction table, the correction device reads from the correction table the correction value corresponding to the reference value. When an input value does not match a reference value in the correction table, the correction device calculates a correction value in accordance with a prescribed calculation formula on the basis of the input value.

Abstract translation: 本发明的目的是通过在光学模块中安装用于信号光的光接收功率监视器的校正装置，以很少的资源将光接收功率的测量值快速和精确地校正为实际值。 校正装置配备有校正表，其在校正信号光的光接收功率的测量值时参考，并且在该校正表中，根据多个参考值与多个参考值之间的对应关系预先存储多个校正值 多个实际值。 在校正表中，对于其中实际值相对于测量值的变化的变化小的段，使参考值之间的间隔变小并且存储更多的校正值而不是实际值的变化 关于测量值的变化的值很大。 当指示信号光的光接收功率的测量值的输入值与校正表中的参考值相匹配时，校正装置从校正表读取与参考值对应的校正值。 当校正表中的输入值与参考值不匹配时，校正装置根据输入值根据规定的计算公式计算校正值。

公开(公告)号：US09055244B2

公开(公告)日：2015-06-09

申请号：US13241758

申请日：2011-09-23

Applicant: Toshiyuki Nishihara

Inventor： Toshiyuki Nishihara

IPC: H04N5/335 ,  H04N3/14 ,  H04N5/357 ,  H04N5/32 ,  H04N5/355

CPC classification number: H04N5/37455 ,  G01J1/44 ,  G01J2001/444 ,  H04N5/32 ,  H04N5/3355 ,  H04N5/3535 ,  H04N5/355 ,  H04N5/357 ,  H04N5/363 ,  H04N5/3742 ,  H04N5/378

Abstract: An imaging device includes: a pixel array section functioning as a light receiving section which includes photoelectric conversion devices and in which a plurality of pixels, which output electric signals when photons are incident, are disposed in an array; a sensing circuit section in which a plurality of sensing circuits, which receive the electric signals from the pixels and perform binary determination regarding whether or not there is an incidence of photons on the pixels in a predetermined period, are arrayed; and a determination result integration circuit section having a function of integrating a plurality of determination results of the sensing circuits for the respective pixels or for each pixel group, wherein the determination result integration circuit section derives the amount of photon incidence on the light receiving section by performing photon counting for integrating the plurality of determination results in the plurality of pixels.

Abstract translation: 成像装置包括：作为包含光电转换装置的光接收部的像素阵列部，其中在光子入射时输出电信号的多个像素排列成阵列; 感测电路部分，其中接收来自像素的电信号并且执行关于在预定周期中是否存在像素的光子入射的二进制确定的多个感测电路被排列; 以及确定结果积分电路部分，其具有对各像素或每个像素组的感测电路的多个确定结果进行积分的功能，其中确定结果积分电路部分通过以下方式导出光接收部分上的光子入射量 执行用于将所述多个确定结果集成在所述多个像素中的光子计数。

公开(公告)号：US20150036126A1

公开(公告)日：2015-02-05

申请号：US14331308

申请日：2014-07-15

Applicant: Yuya KAWASAKI ,  Markus OBERASCHER

Inventor： Yuya KAWASAKI ,  Markus OBERASCHER

IPC: G01J1/42 ,  G01J1/44 ,  G01J3/36

CPC classification number: G01J1/4228 ,  G01J1/0492 ,  G01J1/32 ,  G01J1/44 ,  G01J3/36 ,  G01J2001/444

Abstract: There is provided a semiconductor integrated circuit for an optical sensor for receiving environmental light through a cover member that attenuates visible light and transmits infrared light and a collecting lens, performing luminosity factor correction based on an amount of received light, and detecting an illuminance, wherein the semiconductor integrated circuit includes a first light receiving element having a first spectral property; a second light receiving element having a second spectral property; and a luminosity factor correction unit configured to perform the luminosity factor correction according to output of the first light receiving element and output of the second light receiving element, wherein the luminosity factor correction unit includes an AD conversion unit performed by time division on the output of the first light receiving element and the output of the second light receiving element, and a calculating unit subtracting digital signals obtained by the conversion.

Abstract translation: 提供了一种用于光学传感器的半导体集成电路，用于通过衰减可见光并透射红外光的聚光透镜，基于接收光量进行亮度因子校正并检测照度来接收环境光，其中 半导体集成电路包括具有第一光谱特性的第一光接收元件; 具有第二光谱特性的第二光接收元件; 以及亮度因子校正单元，被配置为根据第一光接收元件的输出和第二光接收元件的输出来执行亮度因子校正，其中亮度因子校正单元包括通过时间分割执行的AD转换单元， 第一光接收元件和第二光接收元件的输出，以及计算单元，减去通过转换获得的数字信号。