Optical scanning device and image forming apparatus
US7969460B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 23, 2009 |
| Grant date | Jun 28, 2011 |
| Priority date | — |
| Expiry date | Jul 24, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/0404
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Disclosed is an optical scanning device including a light source including multiple light-emitting elements, the multiple light-emitting elements being arranged in a linear manner, a collimator lens to collimate a light beam from the light source, a light-deflecting device to deflect a light beam having passed through the collimator lens to a medium to be scanned and scan the medium with the light beam, and a rear optical system arranged in an optical path between the collimator lens and the medium to be scanned, wherein the collimator lens deviates an image surface in a direction opposite to an image surface deviation on the medium to be scanned by a nearly same amount as the image surface deviation, the image surface deviation being caused by a change of an image height of the light source, and the change being caused by the rear optical system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.