Objective lens driving unit and optical pickup device adopting the same
US9196287B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 23, 2011 |
| Grant date | Nov 24, 2015 |
| Priority date | — |
| Expiry date | Sep 23, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/0935
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An objective lens driving unit including a moving structure to which an objective lens and a driving coil are operatively installed, a static structure which includes a magnetic circuit corresponding to the driving coil, a plurality of suspension wires each of which has a first end and a second end, the first end being operatively connected to the static structure, and the second end being operatively connected to the moving structure, and circuit boards operatively installed to the moving structure, the circuit boards including a plurality of wiring layers, wherein the wiring layers include first terminals to which the driving coil is connected and second terminals to which the second end of each of the plurality of is connected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.