Scanning optical device and image forming apparatus having the same
US6628444B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 17, 2001 |
| Grant date | Sep 30, 2003 |
| Priority date | — |
| Expiry date | Jul 17, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B26/123
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A scanning optical device has a first light source unit for generating a plurality of light beams, a second light source unit for generating at least one light beam, and a deflecting scanner for deflecting by a reflecting surface the light beams generated by the first and second light source units to scan a member to be scanned. The positions of the plurality of laser beams generated by the first light source unit are different from each other in a scanning direction in which the deflecting scanner scans, and the at least one light beam generated by the second light source unit is positioned between the plurality of light beams generated by the first light source unit in the scanning direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.