Optical combiner collimating apparatus
US5050966A · kind A · utility
163Cited by
19References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 6, 1988 |
| Grant date | Sep 24, 1991 |
| Priority date | — |
| Expiry date | Jul 6, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0118
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An improved optical display system, such as a head-up display system. A highly transmissive light-weight and shatterproof optical combiner is provided. The combiner includes at least one cholesteric liquid crystal element for transmitting a first image in a line of sight and for reflecting a second image into the line of sight. Multiple cholesteric elements are used in a multicolor shutter, a multicolor combiner, and a multicolor collimator to display a multicolor image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.