Optical recording apparatus
US4710779A · kind A · utility
17Cited by
6References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 26, 1985 |
| Grant date | Dec 1, 1987 |
| Priority date | — |
| Expiry date | Aug 26, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/04767
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Herein disclosed is a recording apparatus for using a semiconductor laser 1 as a light source so that the scanning operation may be conducted with the laser beam which has been modulated on the basis of picture information. The drive current of the semiconductor laser 1 for making the monitor current of an optical output constant is determined before the beginning of a recording period so that the drive current may be used as that of the semiconductor laser 1 during the recording period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.