If you’ve been using your cameraphone to click unsuspecting subjects without their permission, your days may be numbered.
Georgia Tech grad student Shwetak Patel is working on a system that will be able to detect cameras and shoot a focused beam of light at the lens, leaving the photog with an artsy but useless pic of bright lights. The system works by emitting a wide infrared field, which is able to pick up the presence of nearby retroflective lenses. When a lens is detected, the system points a light at it and zaps it. The current version could be used for product demos and trade shows where manufacturers don’t want anyone grabbing shots of their new products.
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Here is a complete description of how this technology will work. Makes interesting reading.