The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 07, 2010
Filed:
May. 17, 2006
Tadao Hayashide, Utsunomiya, JP;
Tadao Hayashide, Utsunomiya, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
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.