Apparatus for protecting optical disc drives
US9021513B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 17, 2013 |
| Grant date | Apr 28, 2015 |
| Priority date | — |
| Expiry date | Jun 17, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/0932
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Provided are apparatuses for grounding the objective lens driving unit of an optical pickup device. An optical pickup device includes an objective lens driving unit and a base that supports the objective lens driving unit, and wherein the objective lens driving unit includes a moving structure including an objective lens and a plurality of drive coils; a static structure comprising magnets corresponding to the plurality of drive coils, a yoke that supports the magnets, and a wire holder that has a plurality of wiring layers including a ground wiring layer; a plurality of suspension wires that connect the plurality of drive coils to the plurality of wiring layers; a supporting portion connected to the yoke and fixed to the wire holder; a projection extending from the supporting portion and disposed adjacent to the ground wiring layer; and conductive bonding material connects the ground wiring layer with the projection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.