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. 04, 2015
Filed:
Jul. 25, 2011
Akira Yamagami, Kawasaki, JP;
Akira Yamagami, Kawasaki, JP;
Nikon Corporation, Tokyo, JP;
Abstract
A zoom lens system comprising, in order from an object side: a first lens group Ghaving negative refractive power; and a second lens group Ghaving positive refractive power, a distance between the first lens group and the second lens group varying upon zooming from a wide-angle end state to a telephoto end state, the first lens group Gincluding, in order from the object side, a first lens component having negative refractive power, a second lens component having negative refractive power, a third lens component having positive refractive power, and a fourth lens component having positive refractive power, thereby providing a downsized zoom lens system having excellent optical performance, an optical apparatus equipped therewith and a method for manufacturing the zoom lens system.