Helmet mounted display with improved SLM illumination
US5984477A · kind A · utility
17Cited by
20References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 22, 1998 |
| Grant date | Nov 16, 1999 |
| Priority date | — |
| Expiry date | May 22, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0132
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The eyepiece of the helmet mounted display optics is formed by a beam splitter eyepiece cube and a spherical mirror to create a magnified virtual image of a rear projection screen mounted to the eyepiece cube at a relatively large distance from the observer. The rear projection screen receives an image from a spatial light modulator display which is illuminated by a separate light source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.