Patent ID: 7188956
Filing Date: 2007-03-13
Classification: G03B,H04N

Abstract:
1. An optical device, comprising: an optical modulator that modulates a light beam irradiated by a light source in accordance with image information; and a color-combining optical device that combines the optical image formed by the optical modulator, wherein the optical modulator is housed in a holder frame having an opening formed corresponding to an image formation area of the optical modulator, wherein the holder frame housing the optical modulator therein, is fixed to a heat-conductive fixing member attached along a light-incident surface of the color-combining optical device, wherein a heat-radiation fin with platy fin members is provided on an extension of the fixing member, the extension extending along the light-incident surface of the color-combining optical device, wherein a cooling fluid is flown to the optical modulator, and wherein a direction in which the fin members of the heat-radiation fin are arranged inclines against a path of the cooling fluid by approximately 45 degrees.