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.

Date of Patent:
Aug. 26, 2025

Filed:

May. 24, 2022
Applicant:

Mitutoyo Corporation, Kanagawa, JP;

Inventors:

Kenji Iwamoto, Kanagawa, JP;

Yasushi Fukumoto, Kanagawa, JP;

Takashi Honma, Kanagawa, JP;

Assignee:

MITUTOYO CORPORATION, Kawasaki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 21/04 (2006.01); G02B 3/00 (2006.01); G02B 21/08 (2006.01); G02B 21/36 (2006.01); G02B 27/10 (2006.01);
U.S. Cl.
CPC ...
G02B 21/04 (2013.01); G02B 3/0037 (2013.01); G02B 21/082 (2013.01); G02B 21/361 (2013.01); G02B 21/362 (2013.01); G02B 27/1013 (2013.01);
Abstract

A microscope unit comprises: a main lens barrel of an imaging optical system, the main lens barrel being configured capable of being fitted with an imaging sensor and an objective lens; and an illumination lens barrel of an illumination optical system, the illumination lens barrel being connected to the main lens barrel and configured capable of being fitted with a light source, the illumination lens barrel having: a first lens barrel configured capable of being fitted with the light source; and an intermediate lens barrel connecting the main lens barrel and the first lens barrel, and a field stop of light irradiated from the light source being disposed more inwardly than an outer peripheral surface of the intermediate lens barrel is.


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