公开(公告)号：US20170299430A1

公开(公告)日：2017-10-19

申请号：US15516371

申请日：2015-08-02

申请人： Soheil BAHREBAR ,  Sajjad BAHREBAR

发明人： Soheil BAHREBAR ,  Sajjad BAHREBAR

IPC分类号： G01J1/44 ,  G01J1/04 ,  G01J1/02

CPC分类号： G01J1/44 ,  A01K63/006 ,  A01K63/06 ,  G01J1/0219 ,  G01J1/0247 ,  G01J1/0266 ,  G01J1/0271 ,  G01J1/0403 ,  G01J1/0411 ,  G01J1/0448 ,  G01J1/16 ,  G01J1/18 ,  G01J2001/4406

摘要： An aquarium photometer system includes a housing unit, an arm, and a mirror. The housing unit includes a light sensor configured to sense light incident on the light sensor and to convert the incident light to a signal. The housing unit also includes an operational amplifier including a first input node, a second input node, and an output node. The operational amplifier is configured to: receive the signal at the first input node, amplify a difference between the signal at the first input node and a signal at the second input node by a gain factor, and output the amplified signal on the output node. The housing unit also includes a potentiometer connected to the operational amplifier and configured to regulate the amplified signal; and a display connected to the potentiometer and configured to show an intensity of light detected by the light sensor based on the regulated amplified signal. The arm at a first end is connected to the housing unit and configured to move the housing unit around an aquarium case. The mirror is located on a bar and positioned within the aquarium in front of the light sensor and at a focal distance from the light sensor and configured to increase an amount of light incident on the light sensor.

公开(公告)号：US20170141844A1

公开(公告)日：2017-05-18

申请号：US15323728

申请日：2015-06-02

申请人： NATIONAL INSTITUTE OF INFORMATION AND COMMUNICATIONS TECHNOLOGY

发明人： Takahide SAKAMOTO

IPC分类号： H04B10/079 ,  G01J1/44 ,  G01J11/00

CPC分类号： H04B10/079 ,  G01J1/16 ,  G01J1/44 ,  G01J11/00 ,  G01J2001/1678 ,  G01J2001/4238 ,  G01J2001/4242 ,  G01J2001/4406 ,  G02F1/01 ,  H04J14/02

摘要： To realize collective measurement of ultrawide-band optical signals which have exceeded an electrical band limit. This photodetection device (100) comprises: a time-delay adjustment means (10) into which is input an optical signal that is a detection object; an optical frequency comb generator (20) that generates an optical frequency comb; a photomixer (30) that photomixes optical signal series which are sequentially output from the time delay adjustment means (10) and which were subjected to time adjustment, and the optical frequency comb signal which is output from the optical frequency comb generator (20); and a photodetector (40) that detects the mixed signal output from the photomixer (30). The time delay adjustment means (10) performs time adjustment on the optical signal series so that each of the time adjusted optical signal series is photomixed with the optical frequency comb at different timings in the photomixer (30).

公开(公告)号：US20170131143A1

公开(公告)日：2017-05-11

申请号：US15318373

申请日：2014-07-02

申请人： Andreas G. ANDREOU ,  Joseph H. LIN ,  Philippe O. POULIQUEN ,  Charbel G. RIZK ,  The Johns Hopkins University

发明人： Andreas G. Andreou ,  Joseph H. Lin ,  Philippe O. Pouliquen ,  Charbel G. Rizk

IPC分类号： G01J1/44 ,  H01L31/02 ,  H01L31/0352 ,  H01L31/107

CPC分类号： G01J1/44 ,  G01J2001/4406 ,  G01J2001/442 ,  G01J2001/4466 ,  G01J2001/448 ,  H01L31/02027 ,  H01L31/035272 ,  H01L31/107

摘要： A photodetection circuit includes an avalanche photodiode and a mode switching circuit that may be configured to selectively switch an operating mode of the photodetection circuit between linear mode and Geiger mode. The photodetection circuit may further include a quenching circuit configured to quench and reset the avalanche photodiode in response to an avalanche event when the photodetection circuit is operated in Geiger mode. The photodetection circuit may additionally include an integration circuit configured to integrate photocurrent output by the photodiode and generate integrated charge units when the photodetection circuit is operated in linear mode. The photodetection circuit may also include a counter configured to count pulses output by the avalanche photodiode when the photodetection circuit is operated in Geiger mode and to count integrated charge units generated by the integration circuit when the photodetection circuit is operated in linear mode.

公开(公告)号：US09584747B2

公开(公告)日：2017-02-28

申请号：US14012154

申请日：2013-08-28

申请人： Analog Devices, Inc.

发明人： Camille L. Huin ,  Gary R. Carreau

IPC分类号： H04N5/378 ,  G01J1/44

CPC分类号： H04N5/378 ,  G01J1/44 ,  G01J2001/4406

摘要： The system may include a pixel array, a selector, a sampler, and a converter. The pixel array may generate output signals representing radiation incident upon the pixel array. The selector may select one of the output signals. The sampler may sample the selected output signal. The converter may generate a digital signal based upon the selected output signal. The sampler may include a charge integrator that compensates for parasitic capacitance of the selector by selecting a first feedback capacitance to obtain a first sample, and after obtaining the first sample, selecting a second feedback capacitance to obtain a second sample. The first feedback capacitance may be greater than the second feedback capacitance.

摘要翻译： 该系统可以包括像素阵列，选择器，采样器和转换器。 像素阵列可以产生表示入射在像素阵列上的辐射的输出信号。 选择器可以选择输出信号之一。 采样器可以对选定的输出信号进行采样。 转换器可以基于所选择的输出信号产生数字信号。 采样器可以包括电荷积分器，其通过选择第一反馈电容来获得第一采样来补偿选择器的寄生电容，并且在获得第一采样之后，选择第二反馈电容以获得第二采样。 第一反馈电容可以大于第二反馈电容。

公开(公告)号：US09568279B2

公开(公告)日：2017-02-14

申请号：US15270827

申请日：2016-09-20

申请人： Cubic Corporation

发明人： Tony Maryfield ,  Mahyar Dadkhah ,  Christopher Chastain Neuhauser

IPC分类号： G06K9/00 ,  F41G3/08 ,  H04N5/232 ,  G06T5/50 ,  H04N5/33 ,  G06T7/00 ,  G06T11/60 ,  G06T5/20 ,  H04N13/02 ,  F41G1/38 ,  F41G3/06

CPC分类号： G01J1/44 ,  F41G1/38 ,  F41G3/06 ,  F41G3/08 ,  F41G3/145 ,  G01J2001/4406 ,  G01J2001/446 ,  G01S7/486 ,  G01S17/023 ,  G01S17/88 ,  G02B23/105 ,  G02B23/18 ,  G02B27/20 ,  G06T5/003 ,  G06T5/20 ,  G06T5/50 ,  G06T7/20 ,  G06T7/33 ,  G06T7/73 ,  G06T11/60 ,  G06T2207/10012 ,  G06T2207/10016 ,  G06T2207/10048 ,  G06T2207/20224 ,  G06T2207/30212 ,  H01L31/02005 ,  H01L31/02019 ,  H01L31/0203 ,  H01L31/03046 ,  H01L31/105 ,  H04N5/23222 ,  H04N5/33 ,  H04N13/204

摘要： Techniques are disclosed for laser-based bore sighting, enabling wind sensing to be performed on captured images of the laser spot. Techniques can include image averaging, background subtraction, and filtering to help ensure that the Gaussian laser spot is detected in the image. Embodiments may include defining a bounding region and altering the operation of a camera such that the camera does not provide pixel data from pixels sensors corresponding pixels of outside the bounding region in subsequent image captures. Embodiments may additionally or alternatively include extracting two stereoscopic images from a single image capture.

摘要翻译： 公开了用于基于激光瞄准的技术，使得能够对所拍摄的激光斑点的图像执行风感测。 技术可以包括图像平均，背景减法和滤波，以帮助确保在图像中检测到高斯激光点。 实施例可以包括定义边界区域并改变相机的操作，使得相机不会在随后的图像捕获中对与边界区域外的像素相对应的像素传感器提供像素数据。 实施例可以另外地或替代地包括从单个图像捕获提取两个立体图像。

公开(公告)号：US20160267679A1

公开(公告)日：2016-09-15

申请号：US15065715

申请日：2016-03-09

申请人： Cubic Corporation

发明人： Tony Maryfield ,  Mahyar Dadkhah ,  Christopher Chastain Neuhauser

IPC分类号： G06T7/20 ,  F41G3/08 ,  G02B27/20 ,  F41G3/06 ,  H04N5/33 ,  H04N13/02

CPC分类号： G01J1/44 ,  F41G1/38 ,  F41G3/06 ,  F41G3/08 ,  F41G3/145 ,  G01J2001/4406 ,  G01J2001/446 ,  G01S7/486 ,  G01S17/023 ,  G01S17/88 ,  G02B23/105 ,  G02B23/18 ,  G02B27/20 ,  G06T5/003 ,  G06T5/20 ,  G06T5/50 ,  G06T7/20 ,  G06T7/33 ,  G06T7/73 ,  G06T11/60 ,  G06T2207/10012 ,  G06T2207/10016 ,  G06T2207/10048 ,  G06T2207/20224 ,  G06T2207/30212 ,  H01L31/02005 ,  H01L31/02019 ,  H01L31/0203 ,  H01L31/03046 ,  H01L31/105 ,  H04N5/23222 ,  H04N5/33 ,  H04N13/204

摘要： Techniques are disclosed for determining the location of laser spot in an image, enabling wind sensing to be performed on captured images of the laser spot. Techniques can include image averaging, background subtraction, and filtering to help ensure that the Gaussian laser spot is detected in the image. Embodiments may include defining a bounding region and altering the operation of a camera such that the camera does not provide pixel data from pixels sensors corresponding pixels of outside the bounding region in subsequent image captures. Embodiments may additionally or alternatively include extracting two stereoscopic images from a single image capture.

摘要翻译： 公开了用于确定图像中激光点的位置的技术，使得能够对所拍摄的激光光斑的图像执行风感测。 技术可以包括图像平均，背景减法和滤波，以帮助确保在图像中检测到高斯激光点。 实施例可以包括定义边界区域并改变相机的操作，使得相机不会在随后的图像捕获中对与边界区域外的像素相对应的像素传感器提供像素数据。 实施例可以另外地或替代地包括从单个图像捕获提取两个立体图像。

公开(公告)号：US09040897B2

公开(公告)日：2015-05-26

申请号：US13442870

申请日：2012-04-10

申请人： Dong-Hai Huang

发明人： Dong-Hai Huang

IPC分类号： H01L27/146 ,  G01J1/44 ,  H01J27/14

CPC分类号： H01L27/14609 ,  G01J1/44 ,  G01J2001/4406 ,  H01J27/146 ,  H01L27/146 ,  H01L27/14643

摘要： A photo-sensing pixel circuit including a photo-sensing part, a transfer transistor, a plurality of adjustment transistors, and an output circuit is provided. The photo-sensing part senses a light source and generates a corresponding number of electrons. The transfer transistor coupled to the photo-sensing part has a floating node and converts the electrons generated by the photo-sensing part into a voltage signal. The adjustment transistors have a first end and a second end, wherein the first end is coupled to a power supply, and the second end is coupled to the transfer transistor via the floating node. The output circuit coupled to the transfer transistor outputs a sensing signal according to the voltage signal, wherein the sensing signal is corresponding to the brightness of the light source. The adjustment transistors operate in at least two operation modes. Different numbers of the adjustment transistors are turned on in different operation modes.

摘要翻译： 提供了包括感光部分，传输晶体管，多个调节晶体管和输出电路的感光像素电路。 感光部分感测光源并产生相应数量的电子。 耦合到感光部分的传输晶体管具有浮动节点，并且将由光敏部分产生的电子转换为电压信号。 调节晶体管具有第一端和第二端，其中第一端耦合到电源，并且第二端经由浮动节点耦合到传输晶体管。 耦合到传输晶体管的输出电路根据电压信号输出感测信号，其中感测信号对应于光源的亮度。 调节晶体管以至少两种操作模式工作。 在不同的操作模式下，不同数量的调节晶体管导通。

公开(公告)号：US07202463B1

公开(公告)日：2007-04-10

申请号：US11229330

申请日：2005-09-16

申请人： Christopher B. Cox

发明人： Christopher B. Cox

IPC分类号： G01J1/44 ,  H01L27/00

CPC分类号： G01J1/46 ,  G01J1/44 ,  G01J2001/4406 ,  H04N5/335

摘要： Briefly, in accordance with one embodiment of the invention, a higher dynamic range image sensor may be implemented by comparing a voltage across the sensor to a threshold voltage during image capture. At the threshold voltage, a count may be registered and the image sensor may be reset for continued image capture until an exposure is complete. A final image signal may be obtained by multiplying the threshold voltage by the number of counts registered and adding the final image sensor voltage.

摘要翻译： 简而言之，根据本发明的一个实施例，可以通过在图像捕获期间将传感器两端的电压与阈值电压进行比较来实现更高动态范围的图像传感器。 在阈值电压下，可以登记计数，并且可以复位图像传感器以继续图像捕获，直到曝光完成。 最终图像信号可以通过将阈值电压乘以寄存的计数数目并添加最终图像传感器电压来获得。

公开(公告)号：US20060261253A1

公开(公告)日：2006-11-23

申请号：US11436086

申请日：2006-05-18

申请人： Tatsuya Arao ,  Atsushi Hirose ,  Kazuo Nishi ,  Yuusuke Sugawara

发明人： Tatsuya Arao ,  Atsushi Hirose ,  Kazuo Nishi ,  Yuusuke Sugawara

IPC分类号： H01L31/00

CPC分类号： G01J1/18 ,  G01J1/44 ,  G01J2001/4406 ,  G09G3/3611 ,  G09G2320/0626 ,  G09G2360/144 ,  G09G2360/145 ,  H01L27/14609 ,  H01L27/14618 ,  H01L27/14643 ,  H01L27/14692 ,  H01L31/101 ,  H01L31/105 ,  H01L2924/0002 ,  H01L2924/00

摘要： It is an object to provide a photoelectric conversion device which detects light ranging from weak light to strong light. The present invention relates to a photoelectric conversion device having a photodiode having a photoelectric conversion layer, an amplifier circuit including a thin film transistor and a bias switching means, where a bias which is connected to the photodiode and the amplifier circuit is switched by the bias switching means when intensity of incident light exceeds predetermined intensity, and accordingly, light which is less than the predetermined intensity is detected by the photodiode and light which is more than the predetermined intensity is detected by the thin film transistor of the amplifier circuit. By the present invention, light ranging from weak light to strong light can be detected.

摘要翻译： 本发明的目的是提供一种检测从弱光到强光的光的光电转换装置。 本发明涉及具有光电转换层的光电二极管的光电转换装置，包括薄膜晶体管的放大电路和偏置开关装置，其中连接到光电二极管和放大器电路的偏压通过偏置 开关意味着当入射光的强度超过预定强度时，由光电二极管检测到小于预定强度的光，并且由放大电路的薄膜晶体管检测出大于预定强度的光。 通过本发明，可以检测从弱光到强光的光。

公开(公告)号：US07022967B2

公开(公告)日：2006-04-04

申请号：US10648110

申请日：2003-08-26

申请人： Atsushi Horiguchi ,  Tohru Mori

发明人： Atsushi Horiguchi ,  Tohru Mori

IPC分类号： H01J40/14 ,  H03F3/08

CPC分类号： G01J1/44 ,  G01J2001/4406

摘要： A photodetector continuously measure quantity of light ranging from high intensity to low intensity at high speed. The photodetector comprises an operational amplifier, a photodiode connected to an inverting terminal of the operational amplifier for outputting a signal corresponding to quantity of light to be detected, a plurality of feedback resistors differentiated in each resistance value, an analog switch for selectively connecting input terminals thereof to which one ends of the feedback resistors are connected to an output terminal of the operational amplifier except the feedback resistor having the maximum resistance value, or connecting the input terminal thereof which is rendered in a non-connection state to the output terminal of the operational amplifier instead of the feedback resistor having the maximum resistance value, wherein the feedback resistor having the maximum resistance value is connected to the output terminal of the operational amplifier at its one end and to the inverting input terminal of the operational amplifier at its other end, and wherein the other ends of the other feedback resistors are connected to the inverting input terminal of the operational amplifier.

摘要翻译： 光电探测器连续地测量从高强度到低强度的高光量。 光检测器包括运算放大器，连接到运算放大器的反相端的光电二极管，用于输出对应于待检测光量的信号，在每个电阻值中区分的多个反馈电阻;模拟开关，用于选择性地连接输入端 其中反馈电阻器的一端连接到除了具有最大电阻值的反馈电阻器之外的运算放大器的输出端子，或者将其处于非连接状态的输入端子连接到非连接状态的输出端子 运算放大器代替具有最大电阻值的反馈电阻器，其中具有最大电阻值的反馈电阻器在其一端连接到运算放大器的输出端，并在其另一端连接到运算放大器的反相输入端 ，并且其中另一端的另一端 反馈电阻连接到运算放大器的反相输入端。