Patent ID: 6536901
Filing Date: 2003-03-25
Classification: G02B,G03B

Abstract:
A projector comprising:an illuminating optical system that emits illumination light; an electro-optical device that modulates light from the illuminating optical system according to image information, the electro-optical device including on at least one side of a light incidence surface and a light emission surface a single-crystal sapphire substrate having a substantially rectangular shape; and a projection optical system that projects a modulated light beam flux obtained by the electro-optical device; a polarizer provided on the single-crystal sapphire substrate; the single-crystal sapphire substrate including a c-axis substantially parallel to the surface of the substrate; and the c-axis has an inclination of greater than 2Â° to about 7Â° with respect to one reference side selected from perpendicularly intersecting two sides of the nearly rectangular shape.