Recording and reproducing apparatus having elevation mechanism
US6188661A · kind A · utility
3Cited by
32References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 6, 1997 |
| Grant date | Feb 13, 2001 |
| Priority date | — |
| Expiry date | Jan 6, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B11/10576
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical pickup device capable of irradiating laser beams on a signal recording surface of a magneto-optical disk is provided. The optical pickup device so provided includes a separate optical system whose moveable portion is reduced in weight in order to cope with high-speed access.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.