Patent ID: 7448775
Filing Date: 2008-11-11
Classification: F21V,G02B,G02F

Abstract:
1. A light emitting assembly comprising at least a light source, a display, and a film, sheet, plate or substrate positioned between the light source and the display, wherein one side of the film, sheet, plate or substrate has a pattern of reflective or refractive surfaces or deformities, and the other side of the film, sheet, plate or substrate has corresponding or aligned optical deformities of well defined shape, wherein light emitted from the light source that strikes a reflective or refractive surface or deformity on the one side of the film, sheet, plate or substrate passes through the film, sheet, plate or substrate and is redirected by at least one corresponding optical deformity on the other side of the film, sheet, plate or substrate, wherein the film, sheet, plate or substrate has multiple layers, and wherein at least one of the layers is an interior layer that has a pattern of reflective or refractive surfaces or optical deformities on at least one surface of the interior layer.