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:
May. 13, 2014
Filed:
Jan. 04, 2013
Applicant:
Olympus Medical Systems Corp., Tokyo, JP;
Inventor:
Kazuo Morita, Tokyo, JP;
Assignee:
Olympus Medical Systems Corp., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 15/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
Provided is an endoscope objective optical system that allows close-up observation while ensuring sufficient image brightness. Provided is an endoscope objective optical system consisting of a front group, an aperture stop, and a back group disposed in order from an object side; and a meniscus lens that can be inserted in and removed from an optical path between the aperture stop and the front group or the back group, with a convex surface thereof facing the aperture stop side.