公开(公告)号：US10353184B2

公开(公告)日：2019-07-16

申请号：US15682547

申请日：2017-08-22

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yasuto Suzuki ,  Genki Nakazawa

IPC: G02B15/163 ,  G02B15/17

Abstract: 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

公开(公告)号：US12248129B2

公开(公告)日：2025-03-11

申请号：US18205155

申请日：2023-06-02

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Genki Nakazawa ,  Takao Yamanaka ,  Yoshiaki Kurioka

IPC: G02B15/20 ,  G02B13/00 ,  G02B13/18 ,  G02B15/14 ,  G02B15/22

Abstract: A zoom lens system includes: 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; and a following lens group following the fifth lens group. The first to fifth lens groups and the following lens group are arranged in this order such that the first lens group is located closest to an object and that the following lens group is located closest to an image. While the zoom lens system is zooming, intervals between the respective lens groups change. While the zoom lens system is focusing from an infinity focus point through a shortest shooting range, a plurality of negative lens groups included in the fifth lens group and the following lens group move.

公开(公告)号：US11933954B2

公开(公告)日：2024-03-19

申请号：US16999666

申请日：2020-08-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Genki Nakazawa ,  Takao Yamanaka ,  Yoshiaki Kurioka

IPC: G02B15/20 ,  G02B13/00 ,  G02B13/18 ,  G02B15/14 ,  G02B15/22

CPC classification number: G02B15/20 ,  G02B13/009 ,  G02B13/18 ,  G02B15/1461 ,  G02B15/22

Abstract: A zoom lens system includes: 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; and a following lens group following the fifth lens group. The first to fifth lens groups and the following lens group are arranged in this order such that the first lens group is located closest to an object and that the following lens group is located closest to an image. While the zoom lens system is zooming, intervals between the respective lens groups change. While the zoom lens system is focusing from an infinity focus point through a shortest shooting range, a plurality of negative lens groups included in the fifth lens group and the following lens group move.

公开(公告)号：US12235424B2

公开(公告)日：2025-02-25

申请号：US16999666

申请日：2020-08-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Genki Nakazawa ,  Takao Yamanaka ,  Yoshiaki Kurioka

IPC: G02B15/20 ,  G02B13/00 ,  G02B13/18 ,  G02B15/14 ,  G02B15/22

Abstract: A zoom lens system includes: 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; and a following lens group following the fifth lens group. The first to fifth lens groups and the following lens group are arranged in this order such that the first lens group is located closest to an object and that the following lens group is located closest to an image. While the zoom lens system is zooming, intervals between the respective lens groups change. While the zoom lens system is focusing from an infinity focus point through a shortest shooting range, a plurality of negative lens groups included in the fifth lens group and the following lens group move.

公开(公告)号：US11150442B2

公开(公告)日：2021-10-19

申请号：US16440071

申请日：2019-06-13

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Genki Nakazawa

IPC: G02B9/62 ,  G02B13/02 ,  G02B27/00 ,  G02B15/20 ,  G02B13/18 ,  G03B5/00 ,  G02B15/14 ,  G02B15/16 ,  G02B13/00 ,  G02B5/00

Abstract: A zoom lens system includes, 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 negative power; a fifth lens group having positive power; and a sixth lens group having power. During zooming from wide angle extremity to telephoto extremity, the distance between respective lens groups changes. The fifth lens group is composed of at most two lens elements, at least one of which is a concave meniscus lens element having a convex surface facing the object side.