Support structure for an optical pickup electrically adjustable in two directions
US5022022A · kind A · utility
2Cited by
2References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 5, 1988 |
| Grant date | Jun 4, 1991 |
| Priority date | — |
| Expiry date | Dec 5, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/093
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical pickup for an optical recording disk in which a holder supports at least some of the optical member and has fixed thereto electrical coils for driving the holder perpendicularly to the disk and parallel to the disk. The holder is supported by four cantilevered supports having fixed ends fixed to a magnetic yoke forming part of the magnetic circuits in conjunction with the electrical coils. Preferably, the cantilevered supports are insulated from the yoke so as to provide power supply paths for the coils.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.