An image sensor is a device that converts an optical image into an electronic signal. It is used mostly in digital cameras, camera modules and other imaging devices. Early analog sensors were video camera tubes, most currently used are digital charge-coupled device (CCD) or complementary metal–oxide–semiconductor (CMOS) active pixel sensors.
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Famous quotes containing the word image:
“Politics will eventually be replaced by imagery. The politician will be only too happy to abdicate in favor of his image, because the image will be much more powerful than he could ever be.”
—Marshall McLuhan (1911–1980)