Camera of the future: A Demo Video Produced by Self-Powered Camera

“A research team led by Shree K. Nayar, T.C. Chang Professor of Computer Science at Columbia Engineering, has invented a prototype video camera that is the first to be fully self-powered—it can produce an image each second, indefinitely, of a well-lit indoor scene. They designed a pixel that can not only measure incident light but also convert the incident light into electric power.”
more info @ http://engineering.columbia.edu/columbia-engineer-invents-video-camera-runs-without-battery
The research was funded by Office of Naval Research.