Objective lens driving unit and optical pickup device using the same
US8520479B2 · kind B2 · utility
2Cited by
5References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 3, 2012 |
| Grant date | Aug 27, 2013 |
| Priority date | — |
| Expiry date | Feb 3, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/0933
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An objective lens driving unit is provided and includes a moving structure having an objective lens and a plurality of driving coils, a permanent magnet and a yoke structure to correspond to the driving coils, a wire holder coupled to the yoke structure and having a plurality of wiring layers buried in a portion of the wire holder, and a plurality of suspension wires to connect the plurality of driving coils to the plurality of wiring layers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.