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:
Jul. 28, 2026
Filed:
Feb. 25, 2022
Nikon Corporation, Tokyo, JP;
Hidetsugu Takagi, Yokohama, JP;
NIKON CORPORATION, Tokyo, JP;
Abstract
A microscope objective lens (OL) includes a first lens group (G) having positive refractive power, a second lens group (G) having a concave surface facing the image side, and a third lens group (G) having a concave surface facing the object side, which are arranged in order from the object side along an optical axis. The first lens group (G) includes one lens component having positive refractive power, the third lens group (G) includes three or more lenses including two negative lenses and one positive lens, and at least one predetermined negative lens in the two negative lenses satisfies the conditional expression 'vdA<40'.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile