Display illumination system
US6404557B2 · kind B2 · utility
7Cited by
92References
39Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 8, 2000 |
| Grant date | Jun 11, 2002 |
| Priority date | — |
| Expiry date | Dec 8, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/30
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A virtual image display system is provided which comprises a non-emissive, reflective microdisplay which forms a source object; an optical system which forms a magnified, virtual image of the source object from light reflected off the microdisplay; a light source system which produces light to illuminate the display system; and an illumination system which forms at least two virtual light sources to illuminate the display system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.