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IMAGE RECORDING DEVICES Before the light image coming from the image intensifier is processed for the display system, it is always transmitted through a bundle of optic fibers directly to a CCD or CMOS camera. The CCD, or charge-coupled device, was introduced in the 1980s, and the technology allowed for the creation and marketing for home camcorders, as it replaced the TV camera tube. The CCD is a small, flat plate approximately 1 cm in length and breadth for a home camcorder. The type used in fluoroscopy are about 2.5 cm, coupled to the 2.5 cm output phosphor. In fluoro, its coupled by a short bundle of optic fibers, as opposed to an optical lens option, which would allow for distortion effects like vignetting. The CCDs sensitive surface is made of a crystalline silicon, a semiconductor. When light photons exiting the image intensifier tube interact with the silicon layer of the CCD, ionization of the molecules separates electrons from them, leaving positively-charged electron hol