Patent ID: 7613373
Filing Date: 2009-11-03
Classification: G02B

Abstract:
1. An optical relay system, comprising: a light source configured to emit a light beam; a substrate guided relay, wherein the substrate guided relay comprises an input coupler, an optical substrate coupled to the input coupler, and an output coupler coupled to the optical substrate; and a light homogenizing relay device disposed between the light source and the substrate guided relay, wherein the light homogenizing relay device is configured to receive the light beam from the light source, to make at least one copy of the light beam outside the substrate guided relay, and to deliver the light beam and the at least one copy of the light beam to the substrate guided relay, wherein the light beam has an angular spread associated therewith, wherein the at least one copy of the light beam retains the angular spread associated with the light beam so as to retain an original field of view between the light beam and the at least one copy of the light beam.