Patent ID: 7561322

Claim:
A projection display system, comprising: a plurality of laser light sources each emitting an illumination light of a different color and projecting along a different beam axis; an illumination optical system for receiving the illumination light from said laser light sources for projecting each of said illumination lights along a different projection angles to a deflection mirror device wherein the deflection mirror device modulating the illumination lights of said different colors to reflect each of said illumination lights to a projection lens wherein each of said illumination lights is reflected and projected to said projection lens with different shifts in a X-Y plane as a plane substantially perpendicular to an optical path of said illumination lights; a laser light source control circuit for controlling the projection of the illumination light of each color from said laser light sources, wherein the laser light source control circuit adjusts said different shifts in said X-Y plane of each color for adjusting a transmission ratio of each of said illumination lights projected through the projection lens for adjusting a ratio of intensity of each of the colors projected through said projection lens according to a prescribed ratio.