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:
Jun. 07, 2005
Filed:
Dec. 04, 2002
Toru Okada, Kawasaki, JP;
Masanao Fujii, Kawasaki, JP;
Seiichi Shimoura, Kawasaki, JP;
Shingo Yamaguchi, Kawasaki, JP;
Haruyasu Watanabe, Kawasaki, JP;
Toru Okada, Kawasaki, JP;
Masanao Fujii, Kawasaki, JP;
Seiichi Shimoura, Kawasaki, JP;
Shingo Yamaguchi, Kawasaki, JP;
Haruyasu Watanabe, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A body has a configuration in which a first ellipse has a first and second focal points and a second ellipse having a third and fourth points are arranged such that the second and third focal points coincide. This body is equivalent to an optical system having an optical path in which light gathered to the first focal point passes through the first focal point, and is reflected by a first concave reflecting surface, being a part of the first ellipse, to go through the second focal point, and then reflected by a second concave reflecting surface, being a part of the second ellipse, to be gathered to the fourth focal point.