A Revolutionary New Type of Lens Focuses All The Colours of The Rainbow Into a Single Point

A brand new type of lens called a metalens has just passed a major hurdle. A metalens is a flat surface that use nanostructures to focus light, and it could change optics forever by replacing the traditional bulky, curved lenses we know.
Read more: http://www.sciencealert.com/single-metalens-brings-all-rainbow-colours-into-single-point-focus?source=Snapzu