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:
Mar. 08, 2022
Filed:
Oct. 05, 2017
Applicant:
Nikon Corporation, Tokyo, JP;
Inventors:
Assignee:
Nikon Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 15/14 (2006.01); G02B 15/16 (2006.01); G02B 15/22 (2006.01); G02B 15/20 (2006.01); H04N 5/232 (2006.01); G02B 13/18 (2006.01);
U.S. Cl.
CPC ...
G02B 15/145105 (2019.08); G02B 15/143103 (2019.08); G02B 15/20 (2013.01); H04N 5/23296 (2013.01); G02B 13/18 (2013.01); G03B 2205/0046 (2013.01);
Abstract
A zoom optical system (ZL) comprises: a first lens group (G) disposed closest to an object and having a positive refractive power; an aperture stop (S) disposed closer to an image than the first lens group (G); a positive lens component disposed so as to oppose the image side of the aperture stop (S); and a lens group (G) having the positive lens component, wherein a distance between the first lens group (G) and the lens group (G) having the positive lens component changes during zooming, at least one lens surface of the positive lens component has an aspherical surface, and the following conditional expression,0.40<<3.60is satisfied,where