Here’s the next generation of digital camera, no chargers, no batteries, all you need a source of light. It’s true, researchers at the Columbia University’s School of Engineering and Applied Science have developed a video recording camera which doesn’t depend upon any external source for its energy requirements instead, the head of computer vision laboratory at Columbia University, Shree K Nayar said that it could charge other devices like smartphones or tablets, rechargeable batteries etc. with the generated power.
‘An innovation that came out of another innovation’, the body of this self-powered camera was constructed using 3-D printer. The working of the innovative camera depends upon an image sensor of 30×40 pixels, a photodiode basically which measures the incident light and converts it into electric power. The image sensor works on two modes: image capture and power harvesting mode. The sensor keeps switching between these afore mentioned modes and serves both purposes. When not in use, the device can be used to create power.
“We are in the middle of a digital imaging revolution. A camera that can function as an untethered device forever, without any external power supply would be incredibly useful”, said Shree K Nayar.
Apart from obvious uses and applications, the concept self-powered camera may also help other technologies to extend their capabilities like smartphones or tablets. There already exist a few diverse designs of image sensors which can produce power from light but this device is the first demonstration of fully self-powered video camera, stated Nayar. The concept will be presented at the international conference on computational photography which will held from 24th to 26th April at the Rice University in Houston, Texas.