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:
Apr. 04, 2023
Filed:
Dec. 02, 2020
Applicant:
Mitutoyo Corporation, Kanagawa, JP;
Inventors:
Tatsuya Nagahama, Kanagawa, JP;
Yuko Shishido, Kanagawa, JP;
Assignee:
MITUTOYO CORPORATION, Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 3/14 (2006.01); G02B 13/22 (2006.01);
U.S. Cl.
CPC ...
G02B 3/14 (2013.01); G02B 13/22 (2013.01);
Abstract
An adapter optical system, which is an optical system configured to guide reflection light reflected by an object and passing through an imaging lens to a liquid resonant lens, includes: a first lens unit removably disposed at a position where the reflection light passing through the imaging lens enters and constituting an image-side telecentric optical system; and a second lens unit disposed at a position where the reflection light passing through the first lens unit enters and constituting a finite correction optical system in combination with the liquid resonant lens.