Piezo-electric line of sight corrector for inertial platform stabilized sensor in a stellar navigational system
US4123136A · kind A · utility
13Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 20, 1976 |
| Grant date | Oct 31, 1978 |
| Priority date | — |
| Expiry date | Dec 20, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/644
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A line-of-sight corrector using piezo-electric crystals as actuators is provided for the inertial platform stabilized tracking telescope of an astro navigational system. The tracking telescope in the embodiment of the invention to be described herein includes a folded-type optical system, and the corrector is used to impart movement to the secondary mirror in the folded optical system to compensate for residual angular movements of the telescope which would otherwise perturb the image focused on the vidicon or solid state sensor in the telescope.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.