Patent ID: 6769779
Filing Date: 2004-08-03
Classification: G03B

Abstract:
A housing for mounting a wire grid polarizing beamsplitter and a spatial light modulator in alignment with an output optical path, comprising:(a) a front plate having an opening for admitting incident illumination provided along an illumination axis; (b) a modulator mounting plate, spaced apart from and parallel to said front plate, for mounting said spatial light modulator in said optical output path of said illumination axis; (c) first and second polarizer support plates, spaced apart from each other and extending between said front plate and said modulator mounting plate; said respective facing inner surfaces of said first and second support plates providing coplanar support features for supporting said wire grid polarizing beamsplitter between said inner surfaces; and said wire grid polarizing beamsplitter being extended between and normal to said facing inner surfaces, said surface of the wire grid polarizing beamsplitter at a fixed angle with respect to said surface of said spatial light modulator on said modulator mounting plate, said fixed angle defining an output optical axis along said output optical path.