Optical mixer for helmet visual display system
US5243450A · kind A · utility
20Cited by
9References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 24, 1992 |
| Grant date | Sep 7, 1993 |
| Priority date | — |
| Expiry date | Apr 24, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0154
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical mixer for use in a helmet visual display system including a light intensifier tube for night vision and a cathode-ray tube for the display of a synthetic image. The mixer includes a swinging glass plate with a spectrally reflective and angularly selective coating. When the angle of the swinging glass plate is changed, the amount of light transmitted through the mixer is changed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.