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:
Aug. 16, 2022
Filed:
Sep. 15, 2020
Nikon Corporation, Tokyo, JP;
Satoshi Yamaguchi, Sagamihara, JP;
NIKON CORPORATION, Tokyo, JP;
Abstract
A zoom optical system (ZL) comprises a first lens group (G) having positive refractive power, a second lens group (G) having negative refractive power, a third lens group (G) having positive refractive power, a fourth lens group (G) having negative refractive power, and a fifth lens group (G) having positive refractive power that are disposed in order from an object. Upon zooming from a wide angle end state to a telephoto end state, the lens groups are moved along an optical axis to change distances between the lens groups. The fifth lens group (G) comprises at least one positive lens and at least one negative lens. Certain conditional expressions are satisfied.