Patent ID: 6190013
Filing Date: 2001-02-20
Classification: G03B

Abstract:
A projector comprising:a plurality of imaging members which are operable to produce a plurality of color light images utilizing light rays of a plurality of primary colors;an illumination optical system for illuminating the plurality of imaging members with the light rays of the plurality of primary colors for production of the plurality of color light images;an image combining optical system which includes at least one of (a) a dichroic filter and (b) a dichroic mirror, and which combines the plurality of color light images from the plurality of imaging members; anda projection optical system which projects a combined color light image from the image combining optical system onto a screen;wherein the illumination optical system comprises a means for producing a luminance nonuniformity of the light rays so as to make an illuminance nonuniformity on at least one of the plurality of imaging members in order to compensate for a luminance nonuniformity of the combined color light image on the screen.