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:
Aug. 21, 2007
Filed:
Nov. 17, 2004
Applicant:
Yoshiharu Tenmyo, Kanagawa, JP;
Inventor:
Yoshiharu Tenmyo, Kanagawa, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B 15/03 (2006.01); G03B 15/06 (2006.01); F21V 7/22 (2006.01); G02B 6/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
An illumination optical system includes a light source and an optical member disposed in a direction of irradiation of light from the light source. The optical member is made of a particle-containing material with particles having a particle size smaller than 1 μm contained in a base material made of a resin material.