Optical scanning device and image forming apparatus
US8634123B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 12, 2008 |
| Grant date | Jan 21, 2014 |
| Priority date | — |
| Expiry date | Apr 20, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B26/124
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical scanning device is configured to cause a light beam to scan a photosensitive drum to form a latent image on the photosensitive drum. The optical scanning device includes light emitting units configured to emit light beams and a light deflecting unit having deflecting surfaces and being configured to cause the light beams emitted from the light emitting units to reflect at the deflecting surfaces and deflect and scan in a main scanning direction. Also, the device includes a lens disposed between the light emitting units and the light deflecting unit, the lens being configured to cause the light beams emitted from the light emitting units to be directed along the main scanning direction to the deflecting surfaces, and an aperture member disposed between the lens and the light deflecting unit, and having apertures formed in line in a sub scanning direction perpendicular to the main scanning direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.