Optical axis adjusting mechanism and method for optical information recording and reproducing device, and jig therefor
US5223970A · kind A · utility
21Cited by
7References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 27, 1990 |
| Grant date | Jun 29, 1993 |
| Priority date | — |
| Expiry date | Aug 27, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2007/13727
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A mechanism for adjusting an optical axis of an optical device, particularly in an optical information recording and reproducing system, in accordance with which the optical axis is movable in two directions, independently of each other. Various parts of the optical system, such as an anamorphic prism and a fixed prism, may be moved to adjust the degree of parallelism and/or displacement of a laser beam. A laser ray source in the system also may be movable independently in different directions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.