Projection lenses play a prominent role in modern society. When combined with a projector, these lenses allow people to view two-dimensional images on a screen by magnifying them and throwing them ...

Researchers in Germany have developed microscopically small nanostructured arrays of lenses that can record or project amazingly sharp images in brilliant colors. Microscopically small nanostructured ...

An image projected on a slanted or curved surface appears distorted and can appear out of focus in some areas. A high-intensity mini-projector about the size of a Euro cent coin can now correct for ...