Wide aperture optical communications detector
US4088884A · kind A · utility
8Cited by
3References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 26, 1976 |
| Grant date | May 9, 1978 |
| Priority date | — |
| Expiry date | Jan 26, 1996 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/60
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Narrow-band detection of optical signals over a large field of view wherein the selective reflecting power of metallic vapors is employed. A modulated carrier signal to be detected is directed to a Brewster window of an enclosure containing a vapor such as mercury. Only the incident light of interest is reflected through an exit window and detected by means of a photo-multiplier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.