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1. 发明授权

US5959668A Automatic exposure and gain control for a sensor using video feedback 失效
标题翻译：使用视频反馈对传感器进行自动曝光和增益控制
公开(公告)号：US5959668A
公开(公告)日：1999-09-28
申请号：US721064
申请日：1996-09-26
申请人： Michael Eugene Cryder , Dale Robert Sebok , H. John Tatko
发明人： Michael Eugene Cryder , Dale Robert Sebok , H. John Tatko
IPC分类号： H04N5/235 , H04N5/238 , H04N5/222 , H04N5/225
CPC分类号： H04N5/238 , H04N5/2353
摘要： An apparatus for viewing dimly illuminated and rapidly changing scenes includes a sensor assembly which generates a video signal. The apparatus further includes a controller which receives the video signal for comparison to a desired average video value whereupon the controller adjusts at least one adjustable variable contained within the sensor assembly. The sensor assembly includes a lens which has an adjustable iris and an image intensification tube which includes a photocathode and a micro-channel plate. The photocathode has an adjustable photocathode gate pulsewidth and the micro-channel plate has an adjustable micro-channel plate gain. A strobe is also provided to illuminate the scene viewed by the sensor assembly wherein the strobe is connected to a processor which is also connected to the controller. The controller determines what the ambient light level is to be at the next illuminated or non-illuminated scene and adjusts the adjustable variables accordingly.
摘要翻译：用于观看昏暗照明和快速变化的场景的装置包括产生视频信号的传感器组件。该装置还包括控制器，其接收视频信号以与期望的平均视频值进行比较，由此控制器调整包含在传感器组件内的至少一个可调节变量。传感器组件包括具有可调节虹膜的透镜和包括光电阴极和微通道板的图像增强管。光电阴极具有可调整的光电阴极脉冲宽度，微通道板具有可调节的微通道板增益。还提供频闪以照亮由传感器组件观看的场景，其中选通连接到也连接到控制器的处理器。控制器确定在下一个照明或非照明场景下的环境光级别，并相应地调整可调整的变量。

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