Patent ID: 7764435
Filing Date: 2010-07-27
Classification: G02B

Abstract:
1. An improved collimator made of a translucent material, including: an input surface for receiving radiation; an output surface generally perpendicular to said input surface for emitting said radiation; and a transmission surface; said transmission surface configured such that it includes at least two types of angles along a plane parallel to said output surface and generally perpendicular to said input surface, said transmission surface also including two surface lengths, said first type of angle extending away from both said input and output surfaces; said second type of angle extending towards said output surface but away from said input surface; said first type of surface length formed starting at the intersection of said first angle and said second angle and extending away from said output surface; said second type of surface length formed starting at the intersection of said second angle and said first angle and extending towards said output surface; said first and second types of angles and surface lengths forming a plurality of reflecting facets arranged so that said radiation is reflected only by said plurality of reflecting facets in passing from said input surface to said output surface.