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Patent Searching and Data


Title:
ズームレンズおよび撮像装置
Document Type and Number:
Japanese Patent JP5841674
Kind Code:
B2
Abstract:
A zoom lens consists of a positive first lens group, a negative second lens group moved from the object side to the image plane side during zooming from the wide angle end to the telephoto end, a positive third lens group moved during zooming, and a positive fourth lens group, in order from the object side. The second and third lens groups each pass through a point where the imaging magnification of each corresponding lens group is −1× at the same time during zooming from the wide angle end to the telephoto end. The fourth lens group includes, on the most object side, a vibration-proof lens group, composed of a negative lens, a positive meniscus lens with a convex surface on the object side, and a negative lens, in order from the object side, and either one of the negative lenses satisfies predetermined conditional expressions.

Inventors:
Shinkichi Ikeda
Toshihiro Aoi
Application Number:
JP2014545562A
Publication Date:
January 13, 2016
Filing Date:
October 31, 2013
Export Citation:
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Assignee:
FUJIFILM Corporation
International Classes:
G02B15/20; G02B13/18; G02B15/04; G02B15/167; G03B5/00
Domestic Patent References:
JP2004110079A2004-04-08
JP2012027308A2012-02-09
JPH08114744A1996-05-07
JP2009128491A2009-06-11
JP2004110079A2004-04-08
JP2012027308A2012-02-09
JPH08114744A1996-05-07
JP2009128491A2009-06-11
Attorney, Agent or Firm:
Yanagita Seiji
Go Sakuma