Optical head
US6567373B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 4, 2001 |
| Grant date | May 20, 2003 |
| Priority date | — |
| Expiry date | Jun 6, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2007/13727
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical head for optical recording/reading apparatus, which records and reads information with high reliability, by making use of an optical interaction with a medium in a minute area, on a high density medium revolving at high speed. It has a structure, in which an optical waveguide mechanism applies a loading force to a slider 6 receiving a buoyant force, and a system for introducing a light to the slider 6 and a system for applying the loading force are integrated into an identical body. As the result, a stable posture regulation of the slider 6 and an increase of the light intensity of irradiation on the medium can be achieved, and it becomes possible to record and read information with high reliability. Furthermore, by disposing a minute structure in the vicinity of an edge in the surface facing the medium of the slider 6, so that the minute structure can come closer to the medium, further improvement in high density can be made.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.