(STUDY FINDS) – The world’s smallest camera, the size of a grain of salt, may soon be coming to mobile phones everywhere. Computer scientists from Princeton University and the University of Washington say the small device they created can take crisp, full-color pictures just as well as conventional cameras which are 500,000 times bigger.
The new technology may help doctors to diagnose and treat diseases far less invasively than traditional endoscopy can today. It will also make imaging better, as thousands of tiny devices could cover the whole surface of a smartphone to become one giant camera – instead of mobile devices needing three different cameras to take pictures.
Traditional cameras use several curved glass or plastic lenses to bend light rays into focus, but the new device uses a “metasurface” which developers can make just like a computer chip. The metasurface is just half a millimeter wide and is made up of 1.6 million tiny posts, which are all shaped like cylinders but none of them look exactly the same.
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