Contact-analog headup display method and apparatus
US5072218A · kind A · utility
75Cited by
8References
3Claims
0Family size
Inventors
Key dates
| Filing date | Feb 24, 1988 |
| Grant date | Dec 10, 1991 |
| Priority date | — |
| Expiry date | Feb 24, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0198
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Images are provided to a pilot in an aircraft overflying the earth by means of a helmet mounted display system. The position and attitude of the aircraft with respect to the earth and the attitude of the helmet with respect to the aircraft are monitored in order to convert a plurality of stored earth position signals into helmet coordinates. Earth points which are viewable by the pilot are displayed using symbolic images thereof such that the symbolic images coincide, from the pilot's point of view, with the actual positions of the viewable points on the earth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.