Optical scanning system
US5914800A · kind A · utility
3Cited by
2References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 15, 1997 |
| Grant date | Jun 22, 1999 |
| Priority date | — |
| Expiry date | Apr 15, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/12
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A predetermined relationship has been found between a number of beams and a ratio a between magnifications in an sub scanning direction. During scanning with a small number of beams, the allowable range of magnification ratio becomes comparatively large. During scanning with a large number of beams, the allowable range of magnification ratio is around 1. By setting the magnification ratio a in the sub scanning direction so as to satisfy the aforementioned allowable ranges, printing with less pitch error can be implemented even with a small magnification.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.