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:
May. 18, 2004
Filed:
Feb. 09, 2000
Hidekazu Shimomura, Kawasaki, JP;
Kazuyuki Kondo, Kawasaki, JP;
Hiroshi Sato, Kawasaki, JP;
Shinichi Arita, Fukuoka-ken, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A color image reading apparatus comprises at least three line sensors arranged at regular intervals along the main scanning direction, an imaging optical system for focussing a light beam on the line sensors, and a diffraction grating for separating a light beam coming from a color image into a plurality of light beams having respective wavelengths different from each other. The imaging optical system includes at least one lens and the optical axis of the lens is eccentrically disposed relative to that of the optical system as a whole so as for the plurality of light beams to be focussed on the respective line sensors.