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. 02, 2004
Filed:
Sep. 13, 2001
Applicant:
Inventor:
Kunihiko Itou, Chiryu, JP;
Assignee:
Denso Corporation, Kariya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 7/10 ;
U.S. Cl.
CPC ...
G06K 7/10 ;
Abstract
A radius of curvature of a projection lens for projecting illumination light on bar codes varies in the arranging direction of the line sensor to collimate the illumination light at each point along the extending direction of the projection lends such that a focal distance at each point agrees with a distance between the point and the position of the LED.