Object-lens driving device for optical pickup including a plurality of supporting plate spring members
US6345031B1 · kind B1 · utility
1Cited by
8References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 11, 1996 |
| Grant date | Feb 5, 2002 |
| Priority date | — |
| Expiry date | Jul 27, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/093
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An object-lens driving device for an optical pickup and which employs such a fine pattern coil as is used in a compact disk player or a laser disk player. The object-lens driving device for an optical pickup eliminates the rolling phenomenon caused when a wire having a circular cross-section is used as a supporting member. Focusing and tracking are controlled more stably, since a plurality of plate springs is used for elastically biasing the horizontal or vertical movement of a driving portion body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.