US Patent 7216987 Optical modulator holder optical device and projector

An optical modulator holder 4402 has a middle frame 4409 for supporting a liquid crystal panel 441, a pair of frame members 4405 and 4406 for sandwiching the middle frame 4409 supporting the liquid crystal panel 441, a second elastic member 4407B and a third elastic member 4407C respectively interposed between the pair of frame members 4405 and 4406 and the liquid crystal panel 441, and translucent boards 442A and 443A respectively arranged on outer faces of the pair of frame members 4405 and 4406. An opening 4409A into which the liquid crystal panel 441 can be fitted is formed on the middle frame 4409, and an inner face thereof serves as an exterior position reference face for the liquid crystal panel 441.