Method and appartus for producing a symbology display into a night vision system
US5502455A · kind A · utility
8Cited by
16References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 21, 1994 |
| Grant date | Mar 26, 1996 |
| Priority date | — |
| Expiry date | Jul 21, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B23/125
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Apparatus and method for introducing superimposed symbology from a CRT into a dimly lit scene being viewed through a viewing device by utilizing a very small mirror to reflect symbology from the source to the viewing device while minimizing the interference of the reception of light from the dimly lit scene by the viewing device, reducing the light from the source to a level consistent with that from the dimly lit scene and decreasing the aperture from the source so that the symbology remains in focus over a large depth of focus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.