Patent ID: 7216987
Filing Date: 2007-05-15
Classification: G02F,G03B,H04N

Abstract:
1. An optical modulator holder that holds an optical modulator for modulating a light beam irradiated from a light source in accordance with image information to form an optical image, and is provided with a cooling chamber for sealing a cooling fluid therein, the cooling fluid cooling the optical modulator, comprising: a support frame having an opening corresponding to an outer profile of the optical modulator and supporting the optical modulator; a pair of frame members respectively having openings corresponding to an image formation area of the optical modulator and sandwiching the support frame supporting the optical modulator; elastic members respectively having openings corresponding to the image formation area of the optical modulator and respectively interposed between the pair of frame members and the optical modulator; and translucent boards respectively arranged on faces opposite to the opposing faces of the pair of frame members, wherein the cooling chamber is formed by closing opposing faces of the openings of the pair of frame members and the faces opposite to the opposing faces respectively with the optical modulator, the support frame, the elastic members and the translucent boards such that the cooling chamber is formed inside both of the pair of frame members, and the optical modulator can be fitted into the opening of the support frame, an inner face of the opening of the support frame being an external position reference face for the optical modulator.