Optical head
US5091793A · kind A · utility
15Cited by
5References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 27, 1990 |
| Grant date | Feb 25, 1992 |
| Priority date | — |
| Expiry date | Dec 27, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B7/12
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical head for recording and reproducing information on an optical disk includes a box-like cover carrying thereon a semiconductor laser unit and a detector, and a substantially planar base on which various optical components are bonded, the base being made of the same material as the box-like cover and secured to the box-like cover to close an open end of the latter. By the use of the planar base, the optical components and the base can be bonded efficiently with utmost ease.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.