Laser diode output power stabilization in a laser imagesetter
US4803497A · kind A · utility
20Cited by
6References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 31, 1987 |
| Grant date | Feb 7, 1989 |
| Priority date | — |
| Expiry date | Aug 31, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/06837
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A laser diode imagesetter having multiple resolution operating modes, includes means for stabilizing the optical output power from the semiconductor laser diode during the scan trace interval across a photosensitive material so as to maintain a high extinction ratio for the laser diode even when its driving current is changed to a different level in order to operate the imagesetter at a different resolution mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.