Optical architecture for infrared viewing system
US6181486A · kind A · utility
3Cited by
10References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 14, 1999 |
| Grant date | Jan 30, 2001 |
| Priority date | — |
| Expiry date | Sep 14, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/23
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical architecture for an infrared vision system for binoculars or a camera. This system includes a front afocal, a scanner, an optical device forming an image of the scene and a cooled detector with cold stop. This architecture has an aperture stop which is seperate from the cold stop thereby causing varaitons in the structure flux over the extent of the detector. These varations are corrected by a suitable shape of the cold stop which smooths out the photometric inefficiency over the extent of the detector and decreases the photometric inefficiency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.