Dynamically matched optical filtering in a multiple telescope imaging system
US4856884A · kind A · utility
20Cited by
8References
2Claims
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Key dates
| Filing date | Mar 16, 1988 |
| Grant date | Aug 15, 1989 |
| Priority date | — |
| Expiry date | Mar 16, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S359/90
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A dynamically matched optical filter is formed within a multiple telescope optical imaging system. Entrance and exit pupil geometries, the phases and tilts of multiple imaging paths and system alignments are sensed and controlled to allow wide field of view imaging and the enhancement or suppression of certain spatial frequencies of interest.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.