(Nanowerk News) Researchers have demonstrated a prototype glasses-free 3D light field display system with a significantly extended viewing distance thanks to a newly developed flat lens. The system is ...

Light field displays, in which careful manipulation of light rays by suitable optical elements produces a 3D image in space without the need for a viewer to wear any special glasses, are expected to ...

For centuries, lenses have worked the same way: curved glass or plastic bending light to bring images into focus. But traditional lenses have a major drawback—the more powerful they need to be, the ...

This paper covers a discussion of the Abbe Sine Condition and its implication for Flat Optics, including the effects of stop shift and substrate curvature. Following that, we apply Sweatt’s high index ...

We experimentally demonstrate imaging in the long-wave infrared (LWIR) spectral band (8 μm to 12 μm) using a single polymer flat lens based upon multilevel diffractive optics. The device thickness is ...

A flat lens that allows a camera's focus to be maintained for objects separated by distances of up to six meters could offer benefits to smartphones and mobile devices, including the potential removal ...