Image sensor device

Abstract

A dynamic vision sensor (DVS) device uses a nano-prism structure to direct and focus light toward pixel sensors of the DVS device. Building on some of the principles for the operation of nano-light pillars, the nano-prism structure is arranged to control the speed and deflection angles of incident light traveling through different portions of the nano-prism structure. For example, the resulting direction and focal points of incident light may be easily modified by changing the location, dimensions, and / or materials of portions of the nano-prism structure. The nano-prism structure may be implemented without micro-lenses to focus light to non-filter (e.g., non-red-green-blue) pixel sensors to encode per-pixel luminance changes to form digital images. As a result, DVS devices implementing the nano-prism structure may occupy less area, are more amenable to design changes, and have higher quantum efficiency.

Images