Apparatus for driving objective lens
US5881034A · kind A · utility
41Cited by
1References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 18, 1997 |
| Grant date | Mar 9, 1999 |
| Priority date | — |
| Expiry date | Aug 18, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/0956
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus for driving an objective lens of an optical disk system for recording/reproducing data to/from a data plane of an optical disk by using light which can simply correct a deviation from an adequate angle between an optical axis of the objective lens and the optical disk is provided by constructing such that the center of gravity of an objective lens movable part is located on the optical axis of the objective lens and a height for anchoring suspensions to the movable part coincides almost with the center of gravity of the movable part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.