Camera Powered by the Light It Captures
NEW YORK, April 15, 2015 — Absorbing solar energy one moment and capturing images the next, a prototype video camera is said to be the first that is entirely self-powered.
Developed by researchers at Columbia University, the camera can produce an image each second, indefinitely, of a well-lit indoor scene. It does not require a wall plug or battery.
"Digital imaging is expected to enable many emerging fields including wearable devices, sensor networks, smart environments, personalized medicine and the...