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:
Sep. 20, 2022
Filed:
Jul. 14, 2017
Nikon Corporation, Tokyo, JP;
Hiroki Harada, Zushi, JP;
NIKON CORPORATION, Tokyo, JP;
Abstract
A zoom optical system (ZL) includes: a first lens group (G) having negative refractive power; a second lens group (G) having positive refractive power, the second lens group (G) being disposed further toward an image than the first lens group (G); and a succeeding lens group (GL) having a vibration-isolating group (GVRb) that moves so as to have a displacement component in a direction orthogonal to an optical axis, the succeeding lens group (GL) being disposed further toward the image than the second lens group (G), a distance between the first lens group (G) and the second lens group (G) changing and a distance between the second lens group (G) and the succeeding lens group (GL) changing upon zooming, and the following conditional expression being satisfied:4.899≤|1|<1000.000where f1VRaw is a composite focal length in a wide-angle end state of a lens disposed further toward the object than the vibration-isolating group, and fw is a focal length of the whole system in the wide-angle end state.