Infrared zoom telescope with decentered dome
US4705343A · kind A · utility
16Cited by
2References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 23, 1986 |
| Grant date | Nov 10, 1987 |
| Priority date | — |
| Expiry date | Apr 23, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/0025
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A protective dome (14) is provided for a zoom telescope (12) which is located therein. Telescope (12) can be used as an attachment to a prime imaging system (22) such as a FLIR (forward looking infrared). The dome (14) is mounted so that its center of curvature (16) is inboard of the outer skin (18) of the aircraft in order to reduce aerodynamic drag. The objective lens (24) of the telescope (12) is decentered with respect to a common axis (29) and the lenses of the zoom lens group (26) are tilted with respect to the common axis (29) to compensate for aberrations introduced by the decentered dome (14).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.