Optical scanning device

Details Optical scanning device Optical scanning device

2005-07-05

2005-07-05

Phan, James (Department: 2872)

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

C359S205100, C359S207110, C359S216100, C347S243000, C347S244000

Reexamination Certificate

active

06914705

ABSTRACT:
An optical scanning device for scanning a plurality of light beams on scanned surfaces, such as photosensitive drums, includes a light source, a front optical system, a deflector (e.g., a rotating polygon mirror) that scans the light beams in a main scanning direction, and a rear optical system for directing the light beams toward the scanned surfaces so that two of the light beams are parallel in a sub-scanning direction that is orthogonal to the main scanning direction and two of the light beams diverge in the sub-scanning direction in the rear optical system. The front optical system includes collimating and converging optical systems. The rear optical system includes cylindrical lens parts that are oppositely inclined relative to the optical axis in a plane that includes the sub-scanning direction so as to correct curvatures of the scanning lines.

REFERENCES:
patent: 4547038 (1985-10-01), Mori
patent: 5208456 (1993-05-01), Appel et al.
patent: 5526166 (1996-06-01), Genovese
patent: 6313906 (2001-11-01), Nagasaka et al.
patent: 6346957 (2002-02-01), Maruyama
patent: 2001/0002152 (2001-05-01), Ohno et al.

Affiliated with

Also associated with

Rating

Optical scanning device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical scanning device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical scanning device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3419257