Optical objectives using apertured retrodirective reflectors
US4097141A · kind A · utility
11Cited by
1References
17Claims
0Family size
Inventor
Key dates
| Filing date | Mar 16, 1977 |
| Grant date | Jun 27, 1978 |
| Priority date | — |
| Expiry date | Mar 16, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C7/14
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The invention is a new telescopic optical system that comprises an entrance pupil, a main mirror in the form of a truncated corner reflector disposed so that its base faces said entrance pupil, and a secondary mirror, said mirror being arranged so that said main mirror receives light admitted by said entrance pupil and reflects it back to said secondary mirror and said secondary mirror reflects said same light back through the truncated section of said main mirror.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.