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:
Oct. 20, 2015
Filed:
Oct. 23, 2014
Canon Finetech Inc., Misato-shi, Saitama-ken, JP;
Nobuyuki Tochigi, Kawaguchi, JP;
CANON FINETECH, INC., Misato-Shi, Saitama-Ken, JP;
Abstract
An image reading apparatus sets an irradiation region below a fixed reading glass when light guide members diffuse light of LEDs upward so that the irradiation region corresponding to a significantly sagged portion in a main scanning direction is wider than that corresponding to portions on both sides of the significantly sagged portion, and sets a light intensity of a plurality of LEDs corresponding to the significantly sagged portion in the main scanning direction to be larger than that of a plurality of LEDs corresponding to the portions on both sides of the significantly sagged portion. Therefore, the degradation of the illuminance corresponding to the significantly sagged portion due to the pressed fixed reading glass can be prevented, and the entire document can be read with uniform reading precision.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile