Assembly for correction of distortions of a mirror
US4875764A · kind A · utility
21Cited by
3References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 29, 1988 |
| Grant date | Oct 24, 1989 |
| Priority date | — |
| Expiry date | Jul 29, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B26/06
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An assembly that can provide corrections of distortions of a mirror. The assembly uses the method of active optics to apply forces to the mirror to introduce deformations that cancel out the distortions. An important feature of the assembly is the employment of a force actuator which comprises a closed feedback loop that closes around the force actuator. An advantage of this novel feature is that, in response to a disturbance to the force actuator, the feedback loop can maintain a desired controlled force for application to the mirror.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.