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:
Mar. 29, 2011
Filed:
Aug. 02, 2007
Applicant:
Takeshi Sekiya, Abiko, JP;
Inventor:
Takeshi Sekiya, Abiko, JP;
Assignee:
Canon Kabushiki Kaisha, Japan, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N 1/46 (2006.01);
U.S. Cl.
CPC ...
Abstract
An image reading apparatus equipped with an illuminating device having little tint variation. A lamp unit illuminates an original with light, and includes a plurality of white LEDs, and a plurality of auxiliary LEDs that emit lights of different colors and arranged in a manner associated with the white LEDs. A CPU causes auxiliary LEDs to be lighted, so as to correct a color of light emitted from each of the white LEDs. An image reading unit reads the original illuminated by the lamp as an image.