Patent ID: 8322905
Filing Date: 2012-12-04
Classification: A61B,A61M,A61N,F21V,G02B,H01H

Abstract:
1. A light emitting panel assembly comprising at least one light source, a light emitting panel member having at least one input edge for receiving light from the light source, 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 distribution from the panel member, each of the deformities having a length and width substantially smaller than a length and width of the panel surface and also having a well defined shape, at least some of the deformities having only two surfaces, the two surfaces having opposite peripheral edge portions that intersect each other and intersect the panel surface, wherein one of the two surfaces is substantially perpendicular to the panel surface and curved in a transverse direction and the other surface of the deformities is a sloping surface.