Patent ID: 9563006
Date: 2017-02-07
CPC Classifications: F21Y,G02B

Claim:
1. A lighting assembly, comprising: a light guide to propagate light by total internal reflection, the light guide comprising first and second opposed major surfaces and an edge surface extending between the major surfaces in a thickness direction, the edge surface comprising a light input region through which light is input into the light guide, the light guide further comprising light extracting elements at at least one of the major surfaces of the light guide, the light extracting elements configured to extract light through at least one of the major surfaces; a reflector adjacent the second major surface of the light guide, the reflector comprising a reflective surface configured to reflect light extracted from the second major surface of the light guide back into the light guide; and an anti-wetting component interposed between the light guide and the reflector, the anti-wetting component comprising a first major surface juxtaposed the second major surface of the light guide and a second major surface juxtaposed the reflective surface of the reflector, at least one of the major surfaces of the anti-wetting component having a high surface roughness, the anti-wetting component configured to redirect light extracted from the light guide and transmitted therethrough such that an intensity profile of the light output from the first major surface of the light guide is uniform among a first location where the anti-wetting component is in contact with the light guide and the reflector and a second location where the anti-wetting component is not in contact with at least one of the light guide and the reflector, wherein the anti-wetting component is a multilayer component comprising a substrate and a textured layer provided on a major surface of the substrate, the textured layer providing the high surface roughness, wherein the textured layer comprises a UV curable resin and transmissive particles are dispersed in the UV curable resin.