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:
Dec. 05, 2006
Filed:
Sep. 23, 2005
Applicants:
Shinichi Hara, Kanagawa, JP;
Eiji Sakamoto, Tochigi, JP;
Yoshinori Miwa, Tochigi, JP;
Yasuo Hasegawa, Tochigi, JP;
Yoshiki Kino, Tochigi, JP;
Inventors:
Shinichi Hara, Kanagawa, JP;
Eiji Sakamoto, Tochigi, JP;
Yoshinori Miwa, Tochigi, JP;
Yasuo Hasegawa, Tochigi, JP;
Yoshiki Kino, Tochigi, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B 27/42 (2006.01);
U.S. Cl.
CPC ...
Abstract
A cooling apparatus arranged in a vacuum or reduced pressure atmosphere for use with an optical element having an illuminated area onto which light is irradiated concave part includes a temperature variation mechanism that changes a temperature of part of the cooling apparatus in a non-contact manner.