Desi knocks out Digital Cameras
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.
Read more about this here
Here is a complete description of how this technology will work. Makes interesting reading.