OPTICAL ARTICLE FOR DIRECTING AND DISTRIBUTING LIGHT

摘要

An optical article for directing and distributing light including an optically transmissive layer having one or more arrays of TIR channels and a light diffusing element disposed in optical communication with the optically transmissive layer. The TIR channels define reflective surfaces extending perpendicular or near-perpendicular to a prevailing plane of the optically transmissive layer. The TIR channels and the light diffusing element operate concurrently to redirect and redistribute a beam of light received from a light source such as daylight or an LED over a broad angular range.

主权项

1. An optical article for directing and distributing light, comprising:
a generally planar layer of an optically transmissive material defined by a first major surface configured for light input and an opposing major surface configured for light output; a plurality of channels formed in said layer; said plurality of channels defining a plurality of TIR surfaces extending perpendicular or near-perpendicular to a prevailing plane of said layer; and a light diffusing element disposed in optical communication with said layer.