Patent ID: 7422354
Filing Date: 2008-09-09
Classification: G01V,G02B

Abstract:
1. A light scrambling system comprising: a substrate with a first surface and a second surface opposite the first surface; and a plurality of light pipes, each having a first end on the first surface of the substrate, a second end on the second surface of the substrate, and at least one inside surface formed by a refractive index boundary; wherein each light pipe is adapted to receive a light input at the first end and to transmit the light output at the second end; wherein the light input is received by the first end at a plurality of input angles, wherein the light output is transmitted at the second end at a plurality of output angles, and wherein at least a portion of the input angles are different from at least a portion of the output angles, thereby scrambling the light received by the first ends of the light pipes and transmitted by the second ends of the light pipes.