Optical axis correcting apparatus and method of correcting optical axis
US6175451A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 16, 1999 |
| Grant date | Jan 16, 2001 |
| Priority date | — |
| Expiry date | Jul 16, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/145
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical axis correcting apparatus for correcting the optical axes of light beams from a communicating party in an optical space transmission system that transmits and receives the light beams to/from the communicating party, comprises, in order to further accurately correct an optical axis with a simple configuration, optical axis changing means for changing the angle of a reflecting mirror placed in the optical path of the light beam and for changing the optical axis of the light beam to be reflected by the reflecting mirror, optical axis direction detecting means for detecting the direction of the optical axis of the light beam that is changed by the optical axis changing means, optical axis adjusting means for adjusting the angle of the reflecting mirror based on the direction of optical axis of the light beam detected by the optical axis direction detecting means through the optical axis changing means in order to adjust the direction of the optical axis of the light beam toward the communicating party, and correction means for detecting a change of angle occurred in the reflecting mirror owing an oscillation applied to the reflecting mirror and for correcting the angle of t…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.