US 12,248,129 B2
Zoom lens system, image capture device, and camera system
Genki Nakazawa, Osaka (JP); Takao Yamanaka, Osaka (JP); and Yoshiaki Kurioka, Osaka (JP)
Assigned to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., Osaka (JP)
Filed by Panasonic Intellectual Property Management Co., Ltd., Osaka (JP)
Filed on Jun. 2, 2023, as Appl. No. 18/205,155.
Application 18/205,155 is a continuation of application No. 16/999,666, filed on Aug. 21, 2020.
Claims priority of application No. 2019-152063 (JP), filed on Aug. 22, 2019.
Prior Publication US 2023/0305278 A1, Sep. 28, 2023
Int. Cl. G02B 15/20 (2006.01); G02B 13/00 (2006.01); G02B 13/18 (2006.01); G02B 15/14 (2006.01); G02B 15/22 (2006.01)
CPC G02B 15/20 (2013.01) [G02B 13/009 (2013.01); G02B 13/18 (2013.01); G02B 15/1461 (2019.08); G02B 15/22 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A zoom lens system comprising, as a plurality of lens groups, in order from an object side to an image side:
a first lens group having positive power;
a second lens group having negative power;
a third lens group having positive power;
a fourth lens group having positive power;
a fifth lens group having negative power;
a sixth lens group having negative power; and
a seventh lens group having positive power,
wherein the seventh lens group includes, in order from the object side to the image side:
a lens having positive power; and
a lens having negative power,
while the zoom lens system is zooming, intervals between the plurality of lens groups and an interval between the first lens group and an image plane change, and
while the zoom lens system is focusing from an infinity focus point through a shortest shooting range, the fifth lens group moves, and
wherein
the fifth lens group consists of one lens, and
the sixth lens group consists of one lens.