Optical pickup apparatus and method of manufacturing the same
US6853608B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 19, 2000 |
| Grant date | Feb 8, 2005 |
| Priority date | — |
| Expiry date | Feb 25, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/0932
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical pickup apparatus has an objective lens that converges a laser beam on an optical recording medium and a lens holder that retains objective lens. The optical pickup apparatus also has a base member, four linear members having base ends supported by the base member and distal ends coupled to the lens holder. A driving device generates a magnetic force between the lens holder and the base member to elastically deform the linear members to thereby drive the objective lens in a focusing direction and/or a tracking direction. The four linear members have generally an identical configuration, and at least one portion of each of the four linear members in a longitudinal direction thereof has a cross section that is compressed and deformed in the focusing direction and/or tracking direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.