公开(公告)号：US11668914B2

公开(公告)日：2023-06-06

申请号：US17085457

申请日：2020-10-30

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takehiro Nishioka ,  Hisayuki II

IPC: G02B15/14 ,  G02B7/14 ,  G03B5/00

CPC classification number: G02B15/1461 ,  G02B7/14 ,  G03B5/00 ,  G03B2205/0046

Abstract: A zoom lens system includes: a first lens group having positive power; a second lens group having negative power; and following lens groups. The following lens groups include: a first focus lens group having negative power; and a second focus lens group having positive power, arranged adjacent to, and closer to the image than, the first focus lens group. The first and second focus lens groups move along an optical axis during focusing from an infinity focus point on a close focus point. During zooming from a wide-angle end toward a telephoto end, intervals between lens groups change with the first lens group fixed with respect to an image plane. The zoom lens system satisfies the Inequality −0.23

公开(公告)号：US09500840B2

公开(公告)日：2016-11-22

申请号：US14595586

申请日：2015-01-13

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Tsutomu Iwashita ,  Yoshiaki Kurioka ,  Takehiro Nishioka

IPC: G02B15/14 ,  G02B13/00 ,  G02B15/173 ,  G02B15/16 ,  H04N5/232

CPC classification number: G02B13/009 ,  G02B15/14 ,  G02B15/16 ,  G02B15/173 ,  H04N5/23296

Abstract: A zoom lens system comprising a plurality of lens units each being composed of at least one lens element, and comprising, in order from an object side to an image side, a first lens unit having positive optical power, a second lens unit having negative optical power, a third lens unit having positive optical power, a fourth lens unit having positive optical power, and a fifth lens unit having negative optical power, wherein the first lens unit is composed of two or less lens elements, the third lens unit is composed of five or more lens elements, and the condition: 5.0

Abstract translation: 一种变焦透镜系统，包括多个透镜单元，每个透镜单元由至少一个透镜元件组成，并且从物体侧到图像侧依次包括具有正光焦度的第一透镜单元，具有负光学的第二透镜单元 电源，具有正光焦度的第三透镜单元，具有正光焦度的第四透镜单元和具有负光焦度的第五透镜单元，其中第一透镜单元由两个或更少的透镜元件组成，第三透镜​​单元组成 五个或更多个透镜元件，并且满足条件：5.0

公开(公告)号：US10302921B2

公开(公告)日：2019-05-28

申请号：US15666874

申请日：2017-08-02

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hiroaki Suzuki ,  Yoshiaki Kurioka ,  Takehiro Nishioka ,  Hisayuki Il

IPC: G02B13/00 ,  G02B15/20 ,  G03B17/14 ,  H04N5/225 ,  H04N5/232 ,  G02B15/173

Abstract: A zoom lens system comprises, in order from an object side to an image side: a first lens group having a positive power; a second lens group having a negative power; an aperture stop, a third lens group having a positive power; and a fourth lens group having a negative power. During zooming, a total length of the zoom lens system does not change, while a distance between each adjacent two of the lens groups changes, and the aperture stop moves along an optical axis independently of the second lens group and the third lens group. The zoom lens system satisfies condition (1) 6.0

公开(公告)号：US11906717B2

公开(公告)日：2024-02-20

申请号：US17673017

申请日：2022-02-16

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takahiro Kitada ,  Takehiro Nishioka ,  Yoshio Matsumura ,  Takakazu Bito ,  Kunio Dohno

IPC: G02B15/14 ,  G02B7/10 ,  G02B7/14

CPC classification number: G02B15/1461 ,  G02B7/10 ,  G02B7/14

Abstract: A zoom lens system includes at least six lens groups, each of which has power. An interval between each pair of lens groups that are adjacent to each other among the at least six lens groups changes while the zoom lens system is zooming. Each of three lens groups, which are respectively located closest, second closest, and third closest to an image plane, out of the at least six lens groups consists of one or more bonded lenses.