charge-coupled device
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The mysteries of the CCD revealed (video)
Sure, we've explained to you why sensor size matters in a digital camera, but maybe you need to take it back a bit. Maybe, you're not entirely sure how those sensors work in the first place. Well, Bill Hammack, better known as The Engineer Guy, is here to help. After breaking down LCDs and hard drives for your amusement and education, Bill has turned his attention to the CCD. The charge-coupled device is the heart and soul of many a digital camera, turning incoming photons into a charge that the impressively complex processor inside can convert into an image. What makes the CCD so impressive is it's rather ingenious solutions to problems such as interference (no wires, just a shift register) and color reproduction (pixel-sized filters and a hue-flattening algorithm). For more, check out the video after the break.
Prototype device detects, disables digital cameras
Proving once again that "outdated technology" still has its place among today's high-tech products, old-school film cameras may soon be the only shooters not rendered ineffective in the face of a new device that promises to identify and disable their digital counterparts in secure environments. Currently still in the prototype phase, the device developed by researchers at the Georgia Tech College of Computing's Interactive and Intelligent Computing Division uses its own set of digital cameras along with a scanning laser to inspect a given area for telltale signs of CCD imagers (shape, size, reflectivity), and subsequently shoots out concentrated beams of light to overwhelm the sensors of offending gadgets. Although the device is still unable to accurately detect camcorders whose CCDs are set farther back from the lens than regular still cameras, once that obstacle is overcome, this technology is expected to be deployed by governments and businesses as an anti-espionage technique or in movie theaters as a way of combating piracy. See, you thought you were ahead of the game with your ten megapixel cameraphone, but it's actually the spies and pirates equipped with those old medium-format Pentaxes who will soon rise to the top of their respective professions.[Via Dvorak Uncensored]
