Digital projection display
US6997564B2 · kind B2 · utility
0Cited by
12References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 22, 2004 |
| Grant date | Feb 14, 2006 |
| Priority date | — |
| Expiry date | Apr 30, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B21/26
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A digital projection display includes a light source producing a light beam, and an integrator, an illumination lens, an illumination fold mirror, a light director, and a digital light modulator which sequentially process the light beam. The digital projection display further has a projection lens that receives the spatially modulated light beam from the light director and includes two projection lens elements. A projection lens fold mirror is disposed between the two projection lens elements. A projection fold mirror receives the light beam from the projection lens and redirects the light beam to a display.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.