Inexpensive 'nano-camera' can operate at the speed of light

A $500 "nano-camera" that can operate at the speed of light has been developed by researchers in the MIT Media Lab. The three-dimensional camera, which was presented last week at Siggraph Asia in Hong Kong, could be used in medical imaging and collision-avoidance detectors for cars, and to improve the accuracy of motion tracking and gesture-recognition devices used in interactive gaming.