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. 24, 2021
Filed:
Dec. 09, 2016
Applicant:
Nikon Corporation, Tokyo, JP;
Inventor:
Saburo Masugi, Kawasaki, JP;
Assignee:
Nikon Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 15/14 (2006.01); G02B 15/20 (2006.01); G02B 15/173 (2006.01); G02B 13/02 (2006.01); G02B 13/18 (2006.01); G02B 13/00 (2006.01); G02B 27/64 (2006.01);
U.S. Cl.
CPC ...
G02B 15/20 (2013.01); G02B 13/02 (2013.01); G02B 15/145121 (2019.08); G02B 15/173 (2013.01); G02B 13/0045 (2013.01); G02B 13/18 (2013.01); G02B 15/14 (2013.01); G02B 27/646 (2013.01);
Abstract
A zoom lens, comprises: in order from an object, 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, wherein, upon zooming from a wide-angle end state to a telephoto end state, a distance between each of lens groups and a lens group adjacent thereto changes to satisfy the following conditional expression:2.90<|5/2|<11.50