Facsimile and static presentation processing – Facsimile – Picture signal generator
Reexamination Certificate
2011-04-05
2011-04-05
Lee, Cheukfan (Department: 2625)
Facsimile and static presentation processing
Facsimile
Picture signal generator
C358S484000, C358S483000, C358S482000, C358S497000
Reexamination Certificate
active
07920304
ABSTRACT:
An image reading apparatus includes a plurality of light sources to illuminate a document; an illumination optical system to guide light to a reading target area having a length and a width; a document illuminating device to illuminate the entire document; an image forming optical system to form an image from light reflected from the document; and a sensor provided in an image forming section of the image forming optical system to read the image of the document. The illumination optical system includes a concentration section to control light diffusion, and a reflection section. The reflection section includes at least two integrally configured reflection surfaces, in which a sine value of an angle of reflected light from at least one reflection surface is positive, while a sine value of an angle of reflected light from the rest of at least one reflection surface is negative.
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Itoh Masahiro
Nishina Kiichiro
Ono Nobuaki
Sakurai Yasuo
Tatsuno Hibiki
Dickstein & Shapiro LLP
Lee Cheukfan
Ricoh & Company, Ltd.
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