Optical scanning apparatus wherein image scanning clock signal frequency is corrected to render scanning speed constant
US4760251A · kind A · utility
13Cited by
8References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 24, 1986 |
| Grant date | Jul 26, 1988 |
| Priority date | — |
| Expiry date | Jul 24, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/04794
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The speed at which a desired surface is scanned by a light beam is rendered constant by correcting the frequency of an image scanning clock signal without using an f lens. The characteristics of correcting the image scanning clock frequency can be varied, or the image scanning clock signal can be brought into phase with a recording position signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.