DIFFRACTIVE OPTICAL RELAY AND METHOD FOR MANUFACTURING THE SAME

摘要

An optical relay device, comprising a substrate, and at least one diffractive optical element is disclosed. The substrate is made, at least in part, of a light transmissive polymeric material characterized by a birefringence, delta n, satisfying the inequality |?n| < e, where e is lower than the birefringence of polycarbonate. In a preferred embodiment, the light transmissive polymeric material comprises a cycloolefin polymer or a cycloolefin copolymer.