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. 26, 2014
Filed:
Jan. 31, 2011
Applicant:
Ryo Kitano, Kanagawa, JP;
Inventor:
Ryo Kitano, Kanagawa, JP;
Assignee:
FUJIFILM Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B 1/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
An illumination lens to be disposed in a front end of a light guide of an endoscope includes an entrance face and an exit face. The entrance face has positive power. The exit face has positive power. The following Expression (1) is satisfied while the following Expression (2) is satisfied.1.2<1/×φ<1.8,  (1)0.24<1/×φ<0.96,  (2)where φ [mm] is a diameter of the lens, r[mm] is a curvature radius of the entrance face, and r[mm] is a curvature radius of the exit face.