Title:
A zoom lens and an imaging device
Document Type and Number:
Japanese Patent JP6219329
Kind Code:
B2
Abstract:
A zoom lens consists of five lens groups including, in order from the object side, positive, negative, positive, positive, and positive lens groups. During magnification change, the first and fifth lens groups are fixed relative to the image plane, and the second, third, and fourth lens groups are moved to change distances therebetween. During magnification change from the wide-angle end to the telephoto end, the second lens group is moved from the object side toward the image plane side, and the fourth lens group is moved from the image plane side toward the object side. The fifth lens group includes at least two negative lenses, and satisfies the condition expression (1) below: 1.90
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Inventors:
Shinkichi Ikeda
Yasutaka Shimada
Yasutaka Shimada
Application Number:
JP2015045036A
Publication Date:
October 25, 2017
Filing Date:
March 06, 2015
Export Citation:
Assignee:
FUJIFILM Corporation
International Classes:
G02B15/20; G02B13/18
Domestic Patent References:
JP2013050650A | ||||
JP2014081464A | ||||
JP2012063432A | ||||
JP2011053295A | ||||
JP3136014A |
Attorney, Agent or Firm:
Patent Service Corporation Taiyo International Patent Office
Yanagita Seiji
Go Sakuma
Yanagita Seiji
Go Sakuma