Patent ID: 7195389

Claim:
A light emitting panel assembly comprising a light emitting panel member having at least one input edge, at least one light source optically coupled to a portion of the width of the input edge, and a pattern of individual light extracting deformities on or in at least one panel surface of the panel member for producing a desired light output from the panel member, each of the deformities having a length and width substantially smaller than the length and width of the panel surface and also having a well defined shape, a majority of the deformities at different locations across the width and length of the panel surface having at least one light extracting surface that is angled at different orientations relative to the input edge depending on the location of the deformities on the panel surface to face the portion of the input edge to which the light source is optically coupled, wherein a plurality of light sources are optically coupled to different portions of the width of the input edge, and at least one light extracting surface of different ones of the majority of the deformities at different locations across the width of the panel surface is angled at different orientations relative to the input edge to face different portions of the input edge to which the different light sources are optically coupled.