Scanner and image forming apparatus including a...

Details Scanner and image forming apparatus including a... Scanner and image forming apparatus including a...

2008-04-08

2008-04-08

Nguyen, Thong (Department: 2872)

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

C359S662000

Reexamination Certificate

active

07355772

ABSTRACT:
A cylindrical lens is positioned between and a polygon mirror and a second slit plate through which light beams from two light beam emitting units pass, and the cylindrical lens has a thin portion where the thickness between the entrance plane and the emission plane is reduced by forming the cylindrical lens in a shape created by cutting off a surface top part of the entrance plane having a convex cross section. The light beams passed through the second slit plate pass through light converging portions provided on both sides of the thin portion of the cylindrical lens in a sub-scanning direction, and are converged on a focal point on a deflecting plane of the polygon mirror.

REFERENCES:
patent: 2405989 (1946-08-01), Beach
patent: 5737300 (1998-04-01), Ota et al.
patent: 5745285 (1998-04-01), Harder et al.
patent: 5838431 (1998-11-01), Hara et al.
patent: 6731417 (2004-05-01), Iizuka
patent: 6819461 (2004-11-01), Makino
patent: 2004/0047018 (2004-03-01), Takakubo
patent: 2004/0169905 (2004-09-01), Hayashi et al.
patent: 2005/0030646 (2005-02-01), Braun
patent: H05-066354 (1993-03-01), None
patent: H05-047084 (1993-07-01), None
patent: 2003-222812 (2003-08-01), None
patent: 2003-322821 (2003-11-01), None

Affiliated with

Also associated with

Rating

Scanner and image forming apparatus including a... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Scanner and image forming apparatus including a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Scanner and image forming apparatus including a... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2757048