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CCD (Charged-Coupled Device)

CCD (Charged-Coupled Device)

It is a light-sensitive chip or sensor. Sensors for digital cameras are typically either CCD or CMOS (Complementary Metal Oxide Semiconductor). Conventionally, CCD was the predominant image pickup device, the workhorse engine of digital cameras. Ironically they are analog devices. The digitization occurs when the charged electrons are converted to digital via the A/D converter.

The CCD has thousands of tiny cells on the sensor that act like little containers or holding tanks. The dynamic range of the sensor is determined by the depth of the little holding tank. The deeper the tank, the greater the dynamic range.


  

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