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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.:

US 11314076 B1

PDFFull Text
Date of Patent:
Apr. 26, 2022

Filed:

Oct. 02, 2019

Rigid scope

Applicant:

Olympus Corporation, Hachioji, JP;

Inventors:

Takayuki Kato, Tokyo, JP;

Takahiro Inoue, Tokyo, JP;

Assignee:

OLYMPUS CORPORATION, Tokyo, JP;

Attorney:

Holtz, Holtz & Volek PC

Primary Examiner:

Cara E Rakowski

Int. Cl.
CPC ...
G02B 23/24 (2006.01); A61B 1/002 (2006.01); G02B 7/02 (2021.01); G02B 9/60 (2006.01); G02B 13/04 (2006.01); A61B 1/00 (2006.01);
U.S. Cl.
CPC ...
G02B 23/243 (2013.01); A61B 1/002 (2013.01); A61B 1/00096 (2013.01); G02B 7/021 (2013.01); G02B 9/60 (2013.01); G02B 13/04 (2013.01); G02B 23/2446 (2013.01); G02B 23/2476 (2013.01);
Abstract

A rigid scope includes: an objective lens composed of, in order from an object side to an image side, a first lens group having a negative power, a second lens group including a lens having a positive power, and a third lens group including two or more lenses; a relay lens arranged on the image side of the objective lens; a first lens frame that fixes in place a front group including at least the first lens group and the second lens group of the objective lens; and a second lens frame that fixes in place a rear group including one or more remaining lenses constituting the objective lens and at least part of the relay lens.

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