Scanning optical system

Details Scanning optical system Scanning optical system

2009-03-30

2011-12-27

Phan, James (Department: 2872)

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

C359S216100, C347S261000

Reexamination Certificate

active

08085456

ABSTRACT:
An object of the present invention is to provide a scanning optical system capable of reducing the number of its components and its size with a simple construction, and an image forming apparatus using the scanning optical system. In a specific scanning optical system, a plurality of light beams emitted from a plurality of light source units are deflected and scanned by a plurality of different deflecting facets of a common optical deflecting unit, and a plurality of scanned surfaces are scanned with the light beams deflected and scanned by the different deflecting facets, respectively. In the scanning optical system, the number of the light source units is 4n, the number of the light beams is 4nm (n and m are positive integers, respectively), incidence optical paths of the light beams incident on the optical deflecting unit are symmetrically disposed with respect to a first cross section and a second cross section which are perpendicular to each other, the first cross section is parallel to a rotational axis of the optical deflecting unit, and the second cross section is perpendicular to the rotational axis of the optical deflecting unit.

REFERENCES:
patent: 5450119 (1995-09-01), Hinton et al.
patent: 5566006 (1996-10-01), Yoshinaga et al.
patent: 5963356 (1999-10-01), Kato
patent: 6141118 (2000-10-01), Yamawaki et al.
patent: 6292285 (2001-09-01), Wang et al.
patent: 6313906 (2001-11-01), Nagasaka et al.
patent: 6469774 (2002-10-01), Kimura
patent: 6549332 (2003-04-01), Kimura
patent: 7012723 (2006-03-01), Yoshikawa et al.
patent: 2003/0072042 (2003-04-01), Koreeda
patent: 2003/0137710 (2003-07-01), Nishikiuchi et al.
patent: 2003/0193703 (2003-10-01), Takakubo
patent: 2058014 (1990-02-01), None
patent: 7-281113 (1995-10-01), None
patent: 9258126 (1997-10-01), None
patent: 11-109265 (1999-04-01), None
patent: 11119131 (1999-04-01), None

Affiliated with

Also associated with

Rating

Scanning optical system does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4268240