Objective lens drive device, optical pickup device, and disk drive device
US7092173B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 9, 2004 |
| Grant date | Aug 15, 2006 |
| Priority date | — |
| Expiry date | Apr 9, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/0933
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A lens holder portion 3 for holding an objective lens 5 is supported on an end side of each of four suspension wires 2 so that it is capable of moving in a focusing direction and in a tracking direction. Minute uneven faces 2a are formed in the surface of each suspension wire 2. Adhesive agent 11 which fixes each suspension wire 2 on the lens holder 3 and fixing member 4 invades into dented portions in this uneven face 2a and hardens, thereby producing an anchor effect to improve bonding strength. Consequently, in an objective lens drive unit 1 in which the lens holder 3 is supported by a plurality of suspension wires 2, bonding strength to the suspension wire 2 can be improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.