Tiny 'metalens' could bring SLR camera quality to your phone
 

Your smartphone's camera quality is limited for a number of reasons (sensor size, for example), but one of the biggest factors is optics: you need a lot of glass to deliver the pin-sharp photos of a DSLR or mirrorless camera. That's where Harvard res...

http://www.engadget.com/2016/06/07/m...phone-cameras/