| US 7,545,456 B2 | ||
| Optical device and projector | ||
| Kazuyuki Iinuma, Hotaka-machi (Japan); and Takashi Saegusa, Matsumoto (Japan) | ||
| Assigned to Seiko Epson Corporation, Tokyo (Japan) | ||
| Filed on Feb. 18, 2005, as Appl. No. 11/60,795. | ||
| Claims priority of application No. 2004-041826 (JP), filed on Feb. 18, 2004. | ||
| Prior Publication US 2005/0179876 A1, Aug. 18, 2005 | ||
| Int. Cl. G02F 1/1333 (2006.01) | ||
| U.S. Cl. 349—58 | 7 Claims |
| 1. An optical device, comprising:
plural light modulators to form optical images by modulating plural color lights with respect to each color light according
to image information;
a light combining device having plural luminous flux incident end surfaces opposed to the respective light modulators to combine
the optical images formed in the respective light modulators;
fixing members located opposite the luminous flux incident end surfaces of the light combining device between the plural light
modulators and the light combining device, and the fixing members being fixed to the light combining device; and
holding members provided to the fixing members to hold the light modulators, and the holding members being located between
the plural light modulators and the light combining device,
the fixing members being formed to have C-shaped sections, the fixing members including base portions opposed to the luminous
flux incident end surfaces and formed of rectangular plates in which opening portions to transmit luminous fluxes are formed
and, the fixing members further including pairs of standing pieces extending from outer peripheral edges of the base portions
and extending along substantially an entire length of the outer peripheral edges toward the light modulators and the pairs
of standing pieces being opposed to each other,
the holding members being formed to have C-shaped sections, the holding members including base portions formed of rectangular
plates in which opening portions to transmit luminous fluxes are formed and to which the light modulators are mounted, and
the holding member further including pairs of standing pieces extending from outer peripheral edges of the base portions and
extending along substantially an entire length of the outer peripheral edges toward the luminous flux incident end surfaces
and the pairs of standing prices being opposed to each other, and
the light modulator being a separable piece that is fixed to the pairs of standing pieces of the fixing members and the pairs
of standing pieces of the holding members, the pairs of standing pieces of the fixing members and the pairs of standing pieces
of the holding members being slidingly fit together.
|