Optical pick-up actuator
US6714364B2 · kind B2 · utility
3Cited by
7References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 3, 2001 |
| Grant date | Mar 30, 2004 |
| Priority date | — |
| Expiry date | Feb 18, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/0935
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical pick-up actuator of the present invention includes a lens holder having a objective lens and tracking and focusing coils, a frame for raising the lens holder in a magnetic field using a suspension wire, and a tilt driving magnetic circuit for driving the actuator in a third direction as well as focusing and tracking directions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.