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:
Oct. 08, 2019
Filed:
Nov. 27, 2013
Nikon Corporation, Chiyoda-ku, Tokyo, JP;
Nikon Corporation, Tokyo, JP;
Abstract
Providing a zoom lens system having excellent optical performance with a high zoom ratio, an imaging apparatus, and a method for zooming the zoom lens system. The system including, in order from an object, a first group Ghaving negative refractive power, a second group Ghaving positive refractive power, a third group Ghaving negative refractive power, and a fourth group Ghaving positive refractive power. An aperture stop S is disposed between the second group Gand the fourth group G. Upon zooming from a wide-angle end state to a telephoto end state, each group is moved such that a distance between the second group Gand the third group Gincreases, a distance between the third group Gand the fourth group Gdecreases, and the aperture stop S is moved together with the third group G. Given conditions are satisfied.