Optical modulator holder optical device and projector
US7216987B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 26, 2005 |
| Grant date | May 15, 2007 |
| Priority date | — |
| Expiry date | Oct 28, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133325
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.