公开(公告)号：US08520199B2

公开(公告)日：2013-08-27

申请号：US13118896

申请日：2011-05-31

Applicant: Tetsu Murayama ,  Moriyasu Ichino

Inventor： Tetsu Murayama ,  Moriyasu Ichino

IPC: G01J1/42

CPC classification number: G01J1/44 ,  G01J2001/444

Abstract: A method to monitor an output of an APD is disclosed. The method includes steps of, (a) measuring dark currents of the APD at several temperatures in advance to a practical operation of the APD, (b) measuring an output current of the APD by illuminating the APD practically at a measured temperature, (c) estimating a dark current at the measured temperature from measured dark currents, and (d) subtracting the estimated dark current from the output current.

Abstract translation: 公开了一种监视APD输出的方法。 该方法包括以下步骤：（a）预先在几个温度下测量APD的暗电流到APD的实际操作;（b）通过在测量的温度下实际照射APD来测量APD的输出电流，（c ）从测量的暗电流估计在测量的温度下的暗电流，以及（d）从输出电流中减去估计的暗电流。

公开(公告)号：US20110292381A1

公开(公告)日：2011-12-01

申请号：US13118896

申请日：2011-05-31

Applicant: Tetsu MURAYAMA ,  Moriyasu Ichino

Inventor： Tetsu MURAYAMA ,  Moriyasu Ichino

IPC: G01J1/42

CPC classification number: G01J1/44 ,  G01J2001/444

Abstract: A method to monitor an output of an APD is disclosed. The method includes steps of, (a) measuring dark currents of the APD at several temperatures in advance to a practical operation of the APD, (b) measuring an output current of the APD by illuminating the APD practically at a measured temperature, (c) estimating a dark current at the measured temperature from measured dark currents, and (d) subtracting the estimated dark current from the output current.

Abstract translation: 公开了一种监视APD输出的方法。 该方法包括以下步骤：（a）预先在几个温度下测量APD的暗电流至APD的实际操作;（b）通过在测量的温度下实际照射APD来测量APD的输出电流，（c ）从测量的暗电流估计在测量的温度下的暗电流，以及（d）从输出电流中减去估计的暗电流。

公开(公告)号：US07759627B2

公开(公告)日：2010-07-20

申请号：US12075062

申请日：2008-03-06

Applicant: Takashi Kunimori ,  Yasushi Yamazaki ,  Masanori Yasumori

Inventor： Takashi Kunimori ,  Yasushi Yamazaki ,  Masanori Yasumori

IPC: H03F3/08

CPC classification number: G01J1/18 ,  G01J1/02 ,  G01J1/0219 ,  G01J1/4204 ,  G01J1/46 ,  G01J2001/444 ,  G02F2001/13312 ,  G09G3/3406 ,  G09G2330/06 ,  G09G2360/144

Abstract: A display device according to an embodiment of the invention includes a display panel, a drive circuit that drives the display panel, an illuminating unit that illuminates the display panel, a photosensing section Ls having an ambient light photosensor Ts that senses the brightness of ambient light and a capacitor Cw that is charged with a predetermined reference voltage via a first switch S1, an ambient light photosensor reading section Re1 that reads a value sensed by the photosensing section, and a controller that controls the illuminating unit according to an output of the ambient light photosensor reading section. The ambient light photosensor reading section is provided with a noise avoidance unit that avoids erroneous sensing in the photosensing section induced as a result of noise generated when the drive circuit operates. Thanks to such structure, a display device is provided in which sensing of ambient light is free from the effects of noise arising from the parasitic capacitance formed between the electrodes and wiring of the ambient light photosensor and the display panel.

Abstract translation: 根据本发明的实施例的显示装置包括显示面板，驱动显示面板的驱动电路，照亮显示面板的照明单元，具有感测环境光的亮度的环境光光电传感器Ts的感光部Ls 以及经由第一开关S1充电预定参考电压的电容器Cw，读取由感光部检测到的值的环境光光电传感器读取部Re1和根据环境的输出来控制照明单元的控制器 光电传感器阅读部分。 环境光光电传感器读取部分设置有避免由于驱动电路工作时产生的噪声而导致的感光部分中的错误感测的噪声回避单元。 由于这种结构，提供了一种显示装置，其中环境光的感测不受由电极之间形成的寄生电容和环境光光电传感器和显示面板的布线产生的噪声的影响。

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：US20080224027A1

公开(公告)日：2008-09-18

申请号：US12075062

申请日：2008-03-06

Applicant: Takashi Kunimori ,  Yasushi Yamazaki ,  Masanori Yasumori

Inventor： Takashi Kunimori ,  Yasushi Yamazaki ,  Masanori Yasumori

IPC: G01J1/32

CPC classification number: G01J1/18 ,  G01J1/02 ,  G01J1/0219 ,  G01J1/4204 ,  G01J1/46 ,  G01J2001/444 ,  G02F2001/13312 ,  G09G3/3406 ,  G09G2330/06 ,  G09G2360/144

Abstract: A display device according to an embodiment of the invention includes a display panel, a drive circuit that drives the display panel, an illuminating unit that illuminates the display panel, a photosensing section Ls having an ambient light photosensor Ts that senses the brightness of ambient light and a capacitor Cw that is charged with a predetermined reference voltage via a first switch S1, an ambient light photosensor reading section Re1 that reads a value sensed by the photosensing section, and a controller that controls the illuminating unit according to an output of the ambient light photosensor reading section. The ambient light photosensor reading section is provided with a noise avoidance unit that avoids erroneous sensing in the photosensing section induced as a result of noise generated when the drive circuit operates. Thanks to such structure, a display device is provided in which sensing of ambient light is free from the effects of noise arising from the parasitic capacitance formed between the electrodes and wiring of the ambient light photosensor and the display panel.

Abstract translation: 根据本发明的实施例的显示装置包括显示面板，驱动显示面板的驱动电路，照亮显示面板的照明单元，具有感测环境光的亮度的环境光光电传感器Ts的感光部Ls 以及经由第一开关S1充电预定参考电压的电容器Cw，读取由感光部分检测到的值的环境光光电传感器读取部分Re 1，以及根据输出的控制器控制照明单元的控制器 环境光光电传感器阅读部分。 环境光光电传感器读取部分设置有避免由于驱动电路工作时产生的噪声而导致的感光部分中的错误感测的噪声回避单元。 由于这种结构，提供了一种显示装置，其中环境光的感测不受由电极之间形成的寄生电容和环境光光电传感器和显示面板的布线产生的噪声的影响。

公开(公告)号：US20050269487A1

公开(公告)日：2005-12-08

申请号：US11103480

申请日：2005-04-12

Applicant: Tokuro Ozawa

Inventor： Tokuro Ozawa

IPC: H01L31/10 ,  G01J1/02 ,  G01J1/16 ,  G01J1/42 ,  G01J1/44 ,  G01J1/46 ,  H01J40/14 ,  H01L27/146 ,  H01L31/14

CPC classification number: G01J1/4228 ,  G01J1/02 ,  G01J1/0271 ,  G01J1/1626 ,  G01J1/46 ,  G01J2001/444 ,  H01L31/145

Abstract: An optical sensor circuit has a first optical sensor that outputs a signal according to the amount of received light on an opened light-receiving surface, a second optical sensor that is provided near the first optical sensor and outputs a signal according to the amount of received light on a shielded light-receiving surface, and a difference calculating circuit that calculates a difference between the output signal of the first optical sensor and the output signal of the second optical sensor and outputs the difference.

Abstract translation: 光学传感器电路具有第一光学传感器，其根据接收到的光的接收光量的信号输出信号，第二光学传感器设置在第一光学传感器附近，并且根据接收到的量输出信号 屏蔽光接收表面上的光;以及计算第一光学传感器的输出信号与第二光学传感器的输出信号之间的差异并输出该差值的差分计算电路。

公开(公告)号：US20050023444A1

公开(公告)日：2005-02-03

申请号：US10627638

申请日：2003-07-28

Applicant: Willy Sander

Inventor： Willy Sander

IPC: G01J1/44 ,  G01J1/02 ,  G01J1/16 ,  G01J1/42 ,  G01J3/28 ,  G03F7/20 ,  H01L21/027 ,  H04N5/361 ,  H04N5/369 ,  H01J40/14

CPC classification number: H04N5/361 ,  G01J1/1626 ,  G01J1/4228 ,  G01J3/2803 ,  G01J2001/444

Abstract: A method is used to perform dark current compensation in a sensor (e.g., a CCD or CMOS sensor). A first and second array of devices (e.g., pixels) in the sensor are used to determine a first dark current value. The first array of pixels in the sensor receives impinging light and generates optical energy values therefrom. The second array of pixels in the sensor are used to determine a second dark current value at substantially a same time as the generating of the optical energy values. The second array of devices being non-sensitive to the impinging light. The first and second dark current values are used to compensate the optical energy values.

公开(公告)号：US5053614A

公开(公告)日：1991-10-01

申请号：US596401

申请日：1990-10-02

Applicant: Yoshikiyo Yui ,  Yuji Tsuruoka

Inventor： Yoshikiyo Yui ,  Yuji Tsuruoka

IPC: G21K5/02 ,  G01J1/42 ,  G01J1/44 ,  G03F7/20 ,  H01L21/30 ,  H05H13/04

CPC classification number: G03F7/70558 ,  G01J1/4209 ,  G01J2001/4238 ,  G01J2001/444

Abstract: An exposure apparatus includes a pulsed light source for repeatedly emitting a pulsed light; a photoelectric converting device for receiving at least a portion of the pulsed light from the pulsed light source; and a control device for controlling the emission of the pulsed light source, on the basis of a value related to a difference between a photoelectric signal produced from the photoelectric converting device at the time of emission of the pulsed light and an offset signal produced from the photoelectric converting device at the time of non-emission of the pulsed light.

Abstract translation: 曝光装置包括用于反复发射脉冲光的脉冲光源; 用于接收来自脉冲光源的脉冲光的至少一部分的光电转换装置; 以及用于控制脉冲光源的发射的控制装置，其基于与在发射脉冲光时从光电转换装置产生的光电信号和由该光电转换装置发射的偏移信号之间的差异相关的值 在不发射脉冲光时光电转换装置。

公开(公告)号：US4989982A

公开(公告)日：1991-02-05

申请号：US389486

申请日：1989-08-04

Applicant: Shigeru Osaki ,  Masami Sugiyama

Inventor： Shigeru Osaki ,  Masami Sugiyama

IPC: G01J3/50 ,  G01J1/44 ,  G01J3/51

CPC classification number: G01J3/51 ,  G01J3/513 ,  G01J3/524 ,  G01J2001/444 ,  G01J3/465

Abstract: A spectral sensitivity correcting device in a photoelectric tristimulus colorimeter which comprises three light receiving systems for the measurement of tristimulus values. Signals indicative of respective outputs from two of the light receiving systems multiplied by predetermined correction coefficients are added to or subtracted from an output from the remaining light receiving system so that spectral sensitivity characteristics of the remaining light receiving system can approach predetermined spectral sensitivity characteristics.

Abstract translation: 光电三刺激色度计中的光谱灵敏度校正装置，其包括用于测量三刺激值的三个光接收系统。 指示来自两个光接收系统的相应输出的信号乘以预定的校正系数被添加到或从其余光接收系统的输出中减去，使得剩余的光接收系统的光谱灵敏度特性可以接近预定的光谱灵敏度特性。

公开(公告)号：US4891519A

公开(公告)日：1990-01-02

申请号：US257635

申请日：1988-10-14

Applicant: Tadashi Nohira ,  Tsuneo Imatsu ,  Ikuzo Kagami

Inventor： Tadashi Nohira ,  Tsuneo Imatsu ,  Ikuzo Kagami

IPC: G01J1/44 ,  G01J1/16 ,  G01N21/01 ,  G01N21/53 ,  G01N21/59 ,  G01N21/85

CPC classification number: G01N21/534 ,  G01N21/8507 ,  G01J1/1626 ,  G01J2001/444 ,  G01N2201/0612 ,  G01N2201/0806

Abstract: A turbidimeter for measuring a turbidity of a test liquid including a hollow main body having openings formed at its lower end through which the test liquid is introduced into a measuring optical path within the main body, a semiconductor laser diode arranged in the main body at its upper end and emitting a laser light, a first prism arranged within the main body and guiding the laser light into the measuring optical path, a second prism arranged within the main body and guiding light emanating from the measuring optical path to the upper end of the main body, first and second semiconductor photodiodes arranged within the main body at its upper end such that the light emanating from the second prism is exclusively made incident upon the first semiconductor photodiode, and first and second operational amplifiers arranged within the main body at its upper end and amplifying output signals supplied from the first and second semiconductor photodiodes, respectively. Output signals generated from the first and second operational amplifiers are supplied to a differential amplifier to derive a difference therebetween, the difference corresponding to the turbidity of the test liquid. The differential amplifier is arranged remote from the main body, so that any error in the measured turbidity due to the temperature variation can be compensated for.

Abstract translation: 一种浊度计，用于测量包括中空主体的测试液体的浊度，所述中空主体在其下端形成开口，所述测试液体通过所述开口被引入到所述主体内的测量光路中;半导体激光二极管，其设置在所述主体中 上端并发射激光，第一棱镜布置在主体内并将激光引导到测量光路中，第二棱镜布置在主体内，并将从测量光路发出的光引导到测量光路的上端 主体，第一和第二半导体光电二极管，其上端设置在主体内，使得从第二棱镜发出的光仅专门入射在第一半导体光电二极管上，第一和第二运算放大器布置在主体的上部 分别结束和放大从第一和第二半导体光电二极管提供的输出信号。 从第一和第二运算放大器产生的输出信号被提供给差分放大器以导出它们之间的差异，该差值对应于测试液体的浊度。 差分放大器远离主体布置，可以补偿由于温度变化引起的测量浊度的任何误差。