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:
Jun. 30, 2026
Filed:
Apr. 19, 2023
Evident Corporation, Tatsuno-machi, JP;
Asuka Yamamoto, Tokyo, JP;
Daiki Horiba, Kanagawa, JP;
Zheng Li, Tokyo, JP;
Hideto Yamashita, Nagano, JP;
Evident Corporation, Kamina-Gun, JP;
Abstract
An objective includes: an objective barrel; a plurality of lens sub-assemblies stacked in an optical axis direction of the objective in the objective barrel, each of the plurality of lens sub-assemblies including a lens and a lens frame holding the lens; and a screw member screwed into the objective barrel, the screw member pressing the plurality of lens sub-assemblies against the objective barrel along the optical axis direction of the objective. The screw member has three or more concave portions into which a jig is fitted when the screw member is screwed into the objective barrel.