Light scanning apparatus having a liquid crystal deflector and image forming apparatus using the same
US7145589B2 · kind B2 · utility
15Cited by
14References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 11, 2003 |
| Grant date | Dec 5, 2006 |
| Priority date | — |
| Expiry date | Dec 3, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/04765
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A light scanning apparatus that scans a scanned face with a light beam includes an adjusting unit that adjusts the position of a light spot of the light beam formed on the scanned face, and a compensating unit that compensates the light intensity of the light beam at the scanned face due to change caused by the adjustment of the position of the light spot. Accordingly, the light scanning apparatus can reduce or eliminate the deviation in exposure between scan lines of the multi-beam scan method and the deviation in exposure between photosensitive bodies of the tandem type image forming apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.