Projection type image display apparatus
US7914153B2 · kind B2 · utility
6Cited by
3References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 29, 2010 |
| Grant date | Mar 29, 2011 |
| Priority date | — |
| Expiry date | Jun 29, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/317
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A projection type image display apparatus includes a lens group, being disposed adjacent to an image display element, which is configured to include a plural number of lenses, and a mirror, which is configured to reflect emission lights from the lens group, so as to project upon the screen obliquely. A ratio (Lo/Lp) between a distance (Lp) from a center of the mirror up to the screen and a diagonal size (Lo) of the screen is at least 2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.