Holographic optical element for instrument panel displays
US4798426A · kind A · utility
10Cited by
11References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 22, 1987 |
| Grant date | Jan 17, 1989 |
| Priority date | — |
| Expiry date | Dec 22, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0165
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A holographic optical element is applied over existing aircraft panel and instruments thereon so as to display an image which is reflected from a source located off the panel. The image is reflected only to an area at which the viewer may observe the image and is not directed to other areas so as to prevent unwanted reflections and glare within the aircraft cockpit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.