A team of scientists at the university of Stuttgart in Germany by 3 d printing technology to produce the world's smallest camera, only for two times the width of human hair...

Camera lens minimum can be much, someone is calculated from the perspective of theory. Minimal 380 nm wavelength to 0.01 radians as resolution requirements (about 1 meter distance resolution 1 cm distance between two points), according to the Rayleigh criterion, the lens diameter of at least 1.22 * 3.8 = 3.8 e-7/3.8 e-5 meters, 46 um. This lens in traditional way, cannot be made.

A team of scientists at the university of Stuttgart in Germany by 3 d printing technology to produce the world's smallest camera, only for two times the width of human hair, and ordinary people's hair width between 10 um to 200 um. , the researchers said they put forward a new concept, in the field of optical, opens the micro-nano optical 3 d printing and complex design of lens. The size of the lens can let the camera only a grain size.

It could take hd pictures, also can be installed in only at the end of the pinhole of coarse fiber optics. The technology is expected in the minimally invasive surgery and organ in the body check brings the innovation of medical equipment, can greatly promote the micro robots and unmanned aerial vehicle (uav) on the vision technology progress.