Magneto-optical recording apparatus with magnetic head decoupled from objective lens focus actuator
US6172944A · kind A · utility
8Cited by
31References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 20, 1998 |
| Grant date | Jan 9, 2001 |
| Priority date | — |
| Expiry date | Feb 20, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B11/10571
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for reading from and writing to a magneto-optical disc. The apparatus comprises a first objective lens situated between a first side of the magneto-optical disc and a first source of a laser light. The apparatus further comprises a first flying magnetic head situated between the first objective lens and the first side of the magneto-optical disc, including a first coil for supplying a first magnetic field, the first coil defining a light channel through the first flying magnetic head for allowing the laser light to reach the magneto-optical disc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.