Incremental printing of symbolic information – Light or beam marking apparatus or processes – Scan of light
Reexamination Certificate
2008-04-25
2011-12-13
Pham, Hai C (Department: 2861)
Incremental printing of symbolic information
Light or beam marking apparatus or processes
Scan of light
C347S256000
Reexamination Certificate
active
08077193
ABSTRACT:
An optical scanning device configured to remove or sufficiently reduce ghost light includes an input optical system for directing a light beam from a light source to a deflecting surface of a deflector, and an imaging optical system for imaging a light beam scanningly deflected by the deflecting surface upon a surface to be scanned, wherein, in a sub-scan section, the light beam is incident on the deflecting surface of the deflector from an oblique direction with respect to an optical axis of the imaging optical system, wherein a light blocking member for blocking ghost light is disposed on a light path between the deflecting surface and the scanned surface, wherein an end portion of the light blocking member in the sub-scan direction is formed with a curved shape having a height in the sub-scan direction which height changes in accordance with the position in the main-scan direction.
REFERENCES:
patent: 5161047 (1992-11-01), Tomita et al.
patent: 5555123 (1996-09-01), Kaplan
patent: 6400488 (2002-06-01), Nagasaka et al.
patent: 6756583 (2004-06-01), Yamawaki
patent: 6987593 (2006-01-01), Hayashi et al.
patent: 7142339 (2006-11-01), Tomioka
patent: 7184185 (2007-02-01), Tamaru et al.
patent: 2003/0160860 (2003-08-01), Yamakawa
patent: 2004/0240000 (2004-12-01), Miyatake et al.
patent: 2005/0029438 (2005-02-01), Kuribayashi
patent: 2006/0017997 (2006-01-01), Tamaru et al.
patent: 2007/0091402 (2007-04-01), Tomioka
patent: 51-120737 (1976-10-01), None
patent: 8-334720 (1996-12-01), None
patent: 9-281423 (1997-10-01), None
patent: 2000-193903 (2000-07-01), None
patent: 2002196269 (2002-07-01), None
patent: 2007-17915 (2007-01-01), None
Chinese Office Action dated Jun. 19, 2009 from corresponding Chinese Application No. 200810092838.2, and English language translation thereof.
Extended European Search Report dated Oct. 16, 2008 from corresponding European Application No. 08008306.6.
Korean Office Action dated Mar. 9, 2010 from corresponding Korean Application No. 10-2009-0133100, and English language translation thereof.
Chinese Office Action dated Aug. 11, 2010 from corresponding Chinese Application No. 2008100092838.2, and English language translation thereof.
Canon Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
Pham Hai C
LandOfFree
Optical scanning device and image forming apparatus using... 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 and image forming apparatus using..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical scanning device and image forming apparatus using... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4259405