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. 14, 2006
Filed:
Nov. 09, 2005
Applicants:
Masahiko Yokota, Chiba, JP;
Haruo Ishizuka, Chiba, JP;
Inventors:
Masahiko Yokota, Chiba, JP;
Haruo Ishizuka, Chiba, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 1/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a contact type image sensor including an illumination section including a light source and light guide to illuminate a document, an image sensing element for converting an optical image of the document into an electrical signal, a cylindrical rod lens for forming an optical image on the image sensing element, and a frame for integrally holding the illumination section, image sensing element, and cylindrical rod lens, the light guide has undergone antireflection treatment on a surface thereof on the document side.