Low order adaptive optics by translating secondary mirror of off-aperture telescope
US8792163B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 25, 2009 |
| Grant date | Jul 29, 2014 |
| Priority date | — |
| Expiry date | Sep 26, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B26/0816
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In one or more embodiments, a beam control apparatus and method for correcting aberrations include an off-aperture telescope configured to receive a beam of electromagnetic energy, wherein the telescope includes a first optical element and a second optical element. The second optical element is configured to be translated in three orthogonal axes, and a wavefront error sensor is configured to detect aberrations in the beam and to provide a wavefront error signal in response thereto. A processor is configured to provide a correction signal in response to the wavefront error signal, and an actuator is coupled to the second optical element and configured, in response to the wavefront error signal, to selectively translate the second optical element in one or more of three substantially orthogonal directions corresponding to the three orthogonal axes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.