Image reading apparatus

Details Image reading apparatus Image reading apparatus

2006-05-17

2010-12-07

Tieu, Benny Q (Department: 2625)

Facsimile and static presentation processing

Natural color facsimile

Scanning

C358S474000, C358S505000, C358S514000, C358S516000

Reexamination Certificate

active

07847988

ABSTRACT:
An image reading apparatus includes a visible light source; an infrared light source; at least three one-dimensional photoelectric conversion elements extending in a main scanning direction and having respective different spectral sensitivity characteristics; an imaging optical system configured to form an image of image information of an original placed on an original holder and irradiated by the visible light source and the infrared light source on the one-dimensional photoelectric conversion elements; a driving unit configured to change relative optical positions of the imaging optical system and the original in a sub-scanning direction; and a control unit configured to obtain visible-light image information and infrared-light image information of the original by controlling turning-on operations of the visible light source and the infrared light source at every reading in the main scanning direction and by performing relative movement of the image optical system and the original in the sub-scanning direction.

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patent: 10-325921 (1998-12-01), None
Keisuke Araki Paraxial and Aberration Analysis of Off-Axial Optical Syatems Dec. 21, 2004 Optics Technology Research Center, Canon Inc. 23-10 Kiyohara-Kogyodanchi, UtSunomiya 321-3298, Japan Optcal, Review vol. 12, No. 3, 219-222.

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