Facsimile and static presentation processing – Facsimile – Picture signal generator
Reexamination Certificate
2011-03-08
2011-03-08
Safaipour, Houshang (Department: 2625)
Facsimile and static presentation processing
Facsimile
Picture signal generator
C358S481000, C358S474000
Reexamination Certificate
active
07903301
ABSTRACT:
An imaging optical system for imaging imagewise information provided on a surface of an original, upon a surface of an image pickup device such that the imagewise information is read based on signals from the image pickup device, the imaging optical system including four off-axial reflection surfaces which are asymmetric within a sub-scan section, wherein, when a combined power, in a main-scan direction, of two off-axial reflection surfaces of said four off-axial reflection surfaces which are optically close to an original side is denoted by Mf and a combined power, in the main-scan direction, of two off-axial reflection surfaces of the four off-axial reflection surfaces which are optically close to an image pickup device side is denoted by Mr, relations −0.3<Mf/Mr<0.3 and 0<Mr are satisfied.
REFERENCES:
patent: 5825560 (1998-10-01), Ogura et al.
patent: 5847887 (1998-12-01), Ogura et al.
patent: 6021004 (2000-02-01), Sekita et al.
patent: 6124986 (2000-09-01), Sekita et al.
patent: 6166866 (2000-12-01), Kimura et al.
patent: 6204978 (2001-03-01), Akiyama et al.
patent: 6292309 (2001-09-01), Sekita et al.
patent: 6301064 (2001-10-01), Araki et al.
patent: 6366411 (2002-04-01), Kimura et al.
patent: 6636360 (2003-10-01), Tanaka et al.
patent: 6639729 (2003-10-01), Tanaka et al.
patent: 6785060 (2004-08-01), Kimura et al.
patent: 3-113961 (1991-05-01), None
patent: 8-292371 (1996-11-01), None
patent: 2004-133378 (2004-04-01), None
Canon Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
Safaipour Houshang
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