公开(公告)号：US20180074301A1

公开(公告)日：2018-03-15

申请号：US15682547

申请日：2017-08-22

申请人： Panasonic Intellectual Property Management Co., Ltd.

发明人： YASUTO SUZUKI ,  GENKI NAKAZAWA

IPC分类号： G02B15/163

CPC分类号： G02B15/163 ,  G02B15/17

摘要： A zoom lens system is an optical system that includes, in order from an object side to an image side, a first lens group having one first lens element with positive optical power, a second lens group having one second lens element with negative optical power, a third lens group with negative optical power, and a subsequent lens group including at least two lens groups. When zooming, distances between the lens groups change, and condition: 1.65