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公开(公告)号：US09584750B2
公开(公告)日：2017-02-28
申请号：US14829500
申请日：2015-08-18
Applicant: Seek Thermal, Inc.
Inventor： Jason Wolfe , Willliam J. Parrish
CPC classification number: H04N5/378 , G01J1/0228 , G01J1/44 , G01J1/46 , G01J5/026 , G01J5/20 , G01J5/22 , G01J2001/444 , H04N5/33 , H04N5/353 , H04N5/3651 , H04N5/3655 , H04N5/3765
Abstract: An imaging system includes a shutter, an array of photodetectors, and electronic circuitry associated with the photodetectors to read intensity values from the photodetectors, the electronic circuitry including elements configured to provide an operating bias point of the photodetectors. The imaging system includes components, such as a controller, configured to adaptively adjust the operating bias for the photodetectors wherein the adjustment is based at least in part on intermittent measurement of a flat field image. During use, the imaging system can be configured to perform intermittent adjustments of the operating bias based on changes in photodetector values for intermittently acquired flat field images. Adjustment of the operating bias may provide compensation for drift over time of the photodetectors and/or electronics due to effects including but not limited to temperature changes.
Abstract translation: 成像系统包括快门，光电检测器阵列以及与光电检测器相关联的电子电路以从光电检测器读取强度值，该电子电路包括被配置为提供光电检测器的操作偏置点的元件。 成像系统包括诸如控制器的组件，其被配置为自适应地调整光电探测器的操作偏压，其中调节至少部分地基于平坦场图像的间歇测量。 在使用期间，成像系统可以被配置为基于间歇获取的平场图像的光电检测器值的变化来执行对工作偏压的间歇性调整。 由于包括但不限于温度变化的影响，操作偏压的调整可以补偿光电检测器和/或电子器件随时间的漂移。
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公开(公告)号：US20160057369A1
公开(公告)日：2016-02-25
申请号：US14829500
申请日：2015-08-18
Applicant: Seek Thermal, Inc.
Inventor： Jason Wolfe , Willliam J. Parrish
CPC classification number: H04N5/378 , G01J1/0228 , G01J1/44 , G01J1/46 , G01J5/026 , G01J5/20 , G01J5/22 , G01J2001/444 , H04N5/33 , H04N5/353 , H04N5/3651 , H04N5/3655 , H04N5/3765
Abstract: An imaging system includes a shutter, an array of photodetectors, and electronic circuitry associated with the photodetectors to read intensity values from the photodetectors, the electronic circuitry including elements configured to provide an operating bias point of the photodetectors. The imaging system includes components, such as a controller, configured to adaptively adjust the operating bias for the photodetectors wherein the adjustment is based at least in part on intermittent measurement of a flat field image. During use, the imaging system can be configured to perform intermittent adjustments of the operating bias based on changes in photodetector values for intermittently acquired flat field images. Adjustment of the operating bias may provide compensation for drift over time of the photodetectors and/or electronics due to effects including but not limited to temperature changes.
Abstract translation: 成像系统包括快门，光电检测器阵列以及与光电检测器相关联的电子电路以从光电检测器读取强度值，该电子电路包括被配置为提供光电检测器的操作偏置点的元件。 成像系统包括诸如控制器的组件，其被配置为自适应地调整光电探测器的操作偏压，其中调节至少部分地基于平坦场图像的间歇测量。 在使用期间，成像系统可以被配置为基于间歇获取的平场图像的光电检测器值的变化来执行对工作偏压的间歇性调整。 由于包括但不限于温度变化的影响，操作偏压的调整可以补偿光电检测器和/或电子器件随时间的漂移。
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公开(公告)号：US20160056785A1
公开(公告)日：2016-02-25
申请号：US14829490
申请日：2015-08-18
Applicant: Seek Thermal, Inc.
Inventor： Jason Wolfe , Willliam J. Parrish , Ross Williams
CPC classification number: H03G3/3084 , G01J1/18 , G01J1/44 , G01J5/22 , G01J5/34 , G01J2001/4406 , G01J2001/444 , G01J2005/0048 , G01J2005/0077 , G01R27/2605 , H01G7/00 , H04N5/33 , H04N5/3651 , H04N5/3655
Abstract: An imaging system includes an array of photodetectors and electronic circuitry associated with the photodetectors to read intensity values from the photodetectors. The electronic circuitry can include an integrator with an integrator capacitor having a nominal capacitance, wherein a gain of the electronic circuitry associated with a photodetector can depend at least in part on the actual capacitance of the integrator capacitor, the actual capacitance differing from the nominal capacitance. The imaging system can be configured to determine a gain factor that depends at least in part on the actual capacitance and/or a signal voltage input to the integrator. The imaging system can be configured to apply the gain factor based at least in part on the actual capacitance of the integrator capacitor calculated. The imaging system can be a thermal imaging system and may include an infrared camera core.
Abstract translation: 成像系统包括与光电检测器相关联的光电检测器和电子电路的阵列，以从光电检测器读取强度值。 电子电路可以包括具有标称电容的积分器电容器的积分器，其中与光电检测器相关联的电子电路的增益至少部分取决于积分电容器的实际电容，实际电容不同于标称电容 。 成像系统可以被配置为确定至少部分地取决于输入到积分器的实际电容和/或信号电压的增益因子。 成像系统可以被配置为至少部分地基于所计算的积分电容器的实际电容来施加增益因子。 成像系统可以是热成像系统，并且可以包括红外相机芯。
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