Patent ID: 9581750
Date: 2017-02-28
CPC Classifications: F21K,F21S,F21V,F21W,F21Y,G02B

Claim:
1. An optical waveguide assembly, comprising: a body of optically transmissive material that exhibits a total internal reflection characteristic wherein the body is tapered in a first direction from a first end to a second end opposite the first end and comprises a constant cross sectional shape along a width transverse to the first direction; a light coupling portion disposed adjacent the first end of the body wherein the light coupling portion comprises refractive and reflective portions that direct light produced by a light source into the first end and in the first direction; and light extracting features disposed on an inner side of the body of optically transmissive material and adapted to extract light out of the body of optically transmissive material; wherein the refractive and reflective portions extend transverse to a planar surface of the first end; and wherein the second end of the body of optically transmissive material comprises a wedge-shaped protrusion on the inner side thereof adapted to extract light out of the body and a bottom protrusion adapted to provide structural support.