Making a glass Fresnel lens with its concentric rings requires ... From dredging up our highschool physics lessons we are guessing that half the light is diffracted outwards rather than inwards ...

Researchers have fabricated and tested flat lenses called Fresnel zone plates (FZPs), but did so for the first time using only common semiconductor manufacturing equipment, the i-line stepper ...

A team with researchers at the University of Tokyo and JSR Corp. fabricated and tested flat lenses called Fresnel zone plates (FZPs), but did so for the first time using only common semiconductor ...

Imagine a world where augmented reality glasses are as lightweight and comfortable as everyday sunglasses, or where ...