Projection display device having an operation section for displacing a lens
US8246176B2 · kind B2 · utility
2Cited by
3References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 4, 2008 |
| Grant date | Aug 21, 2012 |
| Priority date | — |
| Expiry date | Jul 11, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B21/28
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A projection display device comprises a projection lens section to which light modulated by a light modulating element is entered, a mirror section for reflecting the light emitted from the projection lens section to reflect to the projection lens section side and directing the light to a projection plane, and an operation section for displacing a lens in the projection lens section. The operation section is disposed in a region in which the operation section does not hinder an optical path of the light that has been passed through a projection port provided in a main body cabinet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.