Hole accumulation diode (HAD) is an electronic noise reduction device in a charge-coupled device (CCD) or CMOS imaging sensor, patented by the Sony Corporation. HAD devices function by reducing dark current that occur in the absence of light falling on the imager for noise reduction and enhanced image quality.
Hole accumulation diode (HAD) is an electronic noise reduction device in a charge-coupled device (CCD) or CMOS imaging sensor, patented by the Sony Corporation. HAD devices function by reducing dark current that occur in the absence of light falling on the imager for noise reduction and enhanced image quality.
Source: Wikipedia "Hole accumulation diode" · CC BY-SA 4.0
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