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:
Nov. 12, 2002
Filed:
Aug. 27, 1996
Applicant:
Inventors:
Kazuo Kawasaki, Tokyo, JP;
Nobuyuki Nagai, Tokyo, JP;
Assignee:
Asahi Kogaku Kogyo Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 1/04 ;
U.S. Cl.
CPC ...
H04N 1/04 ;
Abstract
A light amount distribution control device has a reflecting sheet by which light irradiated by LEDs is reflected and is radiated onto an object to be read. The light reflected by the object is made incident onto a line sensor to sense an image formed on the object. The reflecting sheet has a color distribution in which a white component increases from the center of the reflecting sheet towards the ends of the reflecting sheet. The reflecting ratio of the reflecting sheet is controlled along the longitudinal direction.