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Jan 23, 2017

Camera, waterproof digital camera, video camera range, its basic principle is the same: image optical signals into electrical signals, and for easy storage or transport. When we take an object, the objects collected reflected light being on camera so that it focused on the imaging device illuminated (for example camera tube target), then through the imaging device to convert light to electricity, which has been "video signal". 

Optical signal is so weak that zoom through pre amp, and then through the circuit and adjust, and finally the standard signals can be sent to the video recorded on a recording medium, or transmitted through the communication systems or to displayed on the monitor.

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