Optical information processing apparatus and optical pickup therefor
US5195070A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 12, 1990 |
| Grant date | Mar 16, 1993 |
| Priority date | — |
| Expiry date | Jul 12, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/14
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Using an optical pickup, recording/reproducing of information is performed by irradiating light beams to an optical recording medium to form light spots. The optical pickup includes means for generating plural light beams, an optical waveguide for guiding the plural light beams in a row into a flat space, and a light deflecting element for deflecting the light beams, which run in the optical waveguide, within a plane formed by a vector perpendicular to a plane of the optical waveguide and a directional vector of the light beams. The light deflecting element deflects the plural light spots, which are to be arranged in a row, in a direction perpendicular to the light spot row to perform micro seek.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.