mocoblog

Digital Camera Jammer: New Technology (Over)Exposes Camera Phones

Emily at picturephoning.com points to a CNET article which showcases a new technology which will render digital camera photos unintelligible.

The technology they’ve devised detects the presence of a digital camera up to 33 feet away and can then shoot a targeted beam of light at the lens.
…
That means that someone trying for a surreptitious snapshot of, say, a product prototype or an amorous couple gets something altogether less useful–a blurry picture (or a video) of what looks like a flashlight beam, seen head on.

The Georgia Tech system essentially exploits the “retroreflective” property of digital camera lenses. When light strikes a retroreflective surface, a portion of the light bounces back to the original source. While eyeglasses, bottles, watches and other glass surfaces are retroreflective, a coating on virtually all digital camera lenses puts cameras in a class of their own.

The project website indicates potential and practical usage at atrade show or corporate demo where it is desirable to have a product or literature on display, but disallow photographs. If a commercial product does arise, I think the first usage would be at strip clubs, casinos, and trade shows. Another use of the technology, (which wasn’t mentioned), is an interactive light show between these “jamming” devices and hundreds of digital cameras. Mmmmmm, flashes and beams of light.

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