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An Extremely Low-Power CMOS Glare Sensor

机译：超低功耗CMOS眩光传感器

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摘要

This paper describes a novel sense-and-respond optical sensor that is used to pinpoint glare in an image and produce a location specific response that can be used to reduce the discomfort or disability caused by the glare source. The sensor is a complimentary metal-oxide-semiconductor (CMOS) “smart” focal plane array (CFPA) chip that has 32$,times,$ 64 pixel resolution. Each pixel has a photodetector and simple signal processing circuitry consisting of a comparator and analog and digital readout. A pixel in the array is activated only when the light impinging on it is above a user-controllable threshold, which allows for extremely low levels of power consumption; the chip consumes approximately 51 $mu$W of power when operating at 200 frames per second (fps) with a single 3 V dc supply. The CFPA has been successfully integrated with the microcontroller and liquid crystal display (LCD) glasses to form portable, lightweight, battery operated glare reduction glasses.
机译：本文介绍了一种新颖的感官响应式光学传感器，该传感器用于查明图像中的眩光并产生特定于位置的响应，该响应可用于减少眩光源引起的不适或残障。该传感器是一块免费的金属氧化物半导体（CMOS）“智能”焦平面阵列（CFPA）芯片，具有32倍×64像素的分辨率。每个像素都有一个光电检测器和简单的信号处理电路，该电路由比较器和模拟和数字读出器组成。仅当入射在阵列上的像素的光高于用户可控制的阈值时才激活该像素，这可以实现极低的功耗。当以3 V直流电源供电时，芯片以每秒200帧（fps）的速度工作时，该芯片消耗约51μW的功率。 CFPA已成功与微控制器和液晶显示器（LCD）眼镜集成在一起，形成了便携式，轻便，电池供电的防眩眼镜。

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