Patent ID: 6556266
Filing Date: 2003-04-29
Classification: G02B,G02F,H04N

Abstract:
A liquid crystal projector comprising:a light source; an illumination optical system for converging the light emitted from said light source to a required optical path; a liquid crystal panel for optically modulating the light converged by said illumination optical system; a projection lens for magnifying and projecting the light modulated by said liquid crystal panel; a first polarization plate which is arranged at an incident side of said liquid crystal panel and transmits a first polarized light converged by said illumination optical system therethrough; a second polarization plate which is arranged at an exit side of said liquid crystal panel, transmits a second polarized light modulated by said liquid crystal panel therethrough, and outputs the same to said projection lens; and a phase difference means having one of a phase delay axis or a phase forward axis which is orthogonal to a polarization axis of said first or second polarization plate and arranged inclined by a predetermined angle about an axis of rotation comprised of an axis parallel to the polarization axis of said first or second polarization plate in the plane in which said phase delay axis or phase forward axis is formed.