Uniform intensity per pixel when the linear speed of a laser beam varies along a scanline
US4757191A · kind A · utility
12Cited by
5References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 30, 1986 |
| Grant date | Jul 12, 1988 |
| Priority date | — |
| Expiry date | Jul 30, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/4015
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A modulated laser beam emitted from a semiconductor laser is deflected by a rotating light beam deflector to scan a desired surface. The frequency of an image scanning clock signal and the intensity of the laser beam from the semiconductor laser are varied according to a scanning rate at which the surface is scanned by the modulated laser beam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.