Projection device
US6250763A · kind A · utility
38Cited by
17References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 5, 1998 |
| Grant date | Jun 26, 2001 |
| Priority date | — |
| Expiry date | Feb 5, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B26/0833
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A projection device which includes a plurality of deflectable mirror arrays arranged to spatially modulate incident light. A totally internal reflecting surface is arranged to direct light to and from the deformable mirror array. The device includes on or more dichroic layers arranged at an angle relative to the incident light dependent on the spread of angles on the incident beam relative to the optical axis. Additionally or alternatively, the totally internally reflecting surface may be arranged to direct non-spatially modulated light towards a beam dump.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.