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.

公开(公告)号：US10012822B2

公开(公告)日：2018-07-03

申请号：US15419143

申请日：2017-01-30

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takahiro Kitada ,  Shunichiro Yoshinaga ,  Takakazu Bito

IPC: G02B27/64 ,  G02B15/14 ,  G02B15/163 ,  G02B15/20 ,  G02B15/22

CPC classification number: G02B15/163 ,  G02B15/173 ,  G02B15/20 ,  G02B15/22 ,  G02B27/646

Abstract: The zoom lens system includes a first lens group with positive power, a second lens group with negative power, a third lens group with positive power, a fourth lens group with negative power, and a fifth lens group with positive power. An aperture stop is provided between the second and the third lens groups. The third lens group includes lens element L3a and L3b with positive power, lens element L3c with negative power, and lens element L3d with positive power. The lens elements L3c and L3d are cemented. The lens element L3b corrects image blurring. The fourth lens group moves when focusing. When zooming, the first to the fourth lens group move.Here, condition (1) below is satisfied. 0.24

公开(公告)号：US09904042B2

公开(公告)日：2018-02-27

申请号：US14986864

申请日：2016-01-04

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takakazu Bito

IPC: G02B15/14 ,  G02B15/173 ,  G02B13/00 ,  G02B15/20 ,  G02B27/00 ,  H04N5/225 ,  H04N5/232 ,  H04N5/262 ,  G02B13/18 ,  G02B27/42

CPC classification number: G02B15/173 ,  G02B13/009 ,  G02B13/18 ,  G02B15/20 ,  G02B27/0025 ,  G02B27/4211 ,  H04N5/2254 ,  H04N5/23296 ,  H04N5/2628

Abstract: A zoom lens system includes a first lens unit, a second lens unit, a third lens unit, a fourth lens unit, a fifth lens unit, and a sixth lens unit. In zooming, at least the first lens unit, the second lens unit, and the third lens unit move along an optical axis so that an interval between the first lens unit and the second lens unit at a telephoto limit becomes larger than that at a wide-angle limit, and an interval between the second lens unit and the third lens unit at the telephoto limit becomes narrower than that at the wide-angle limit. An aperture diaphragm is disposed between the second lens unit and the third lens unit. A condition of 18.5

公开(公告)号：US10009524B2

公开(公告)日：2018-06-26

申请号：US14829669

申请日：2015-08-19

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takakazu Bito ,  Hiroaki Suzuki

IPC: G02B15/20 ,  H04N5/225 ,  G02B13/18 ,  G02B27/64 ,  G02B15/173

CPC classification number: H04N5/2254 ,  G02B13/18 ,  G02B15/173 ,  G02B27/646

Abstract: A zoom lens system includes a first lens group having a positive power, a second lens group that has a negative power and includes one lens element, a third lens group that has a positive power and includes at least two lens elements, and a subsequent lens group that has a positive power as a whole and includes at least two lens groups in order from an object side to an image side. In zooming operation, at least the first lens group to the third lens group move along an optical axis, and a condition of −9.0

公开(公告)号：US09513472B2

公开(公告)日：2016-12-06

申请号：US14573406

申请日：2014-12-17

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takakazu Bito ,  Hiroaki Suzuki ,  Yoshiaki Kurioka ,  Yusuke Yonetani

IPC: G02B9/62 ,  G02B15/16 ,  G02B15/20 ,  G02B15/173 ,  G02B15/22 ,  H04N5/232 ,  H04N5/225 ,  G02B27/42 ,  G02B13/00

CPC classification number: G02B15/16 ,  G02B13/009 ,  G02B15/173 ,  G02B15/20 ,  G02B15/22 ,  G02B27/4211 ,  H04N5/2254 ,  H04N5/23212 ,  H04N5/23296

Abstract: A zoom lens system, in order from an object side to an image side, comprising: 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 negative optical power; a fifth lens unit; and a sixth lens unit, wherein in zooming from a wide-angle limit to a telephoto limit at a time of image taking, the first lens unit, the second lens unit, the third lens unit, and the fourth lens unit move along an optical axis so that an interval between the third lens unit and the fourth lens unit at the telephoto limit is larger than that at the wide-angle limit, and wherein focusing from an infinity in-focus condition to a close-object in-focus condition is performed by moving the fourth lens unit along the optical axis.

Abstract translation: 变焦透镜系统，从物体侧到像侧依次包括：具有正光焦度的第一透镜单元; 具有负光焦度的第二透镜单元; 具有正光焦度的第三透镜单元; 具有负光焦度的第四透镜单元; 第五透镜单元; 以及第六透镜单元，其中，从图像拍摄时的广角极限变焦到望远极限时，第一透镜单元，第二透镜单元，第三透镜​​单元和第四透镜单元沿着光学 使得在远摄极限处的第三透镜单元和第四透镜单元之间的间隔大于广角极限处的间隔，并且其中从无限远对焦条件到近距离对焦条件的聚焦是 通过沿着光轴移动第四透镜单元来执行。

公开(公告)号：US10705317B2

公开(公告)日：2020-07-07

申请号：US16050543

申请日：2018-07-31

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takakazu Bito ,  Ryosuke Sato

IPC: G02B15/14 ,  G02B9/62 ,  G02B7/04 ,  H04N5/232 ,  G02B27/00 ,  G02B15/173 ,  G02B27/64 ,  G02B13/00

Abstract: A zooming imaging optical system includes, in order from an object side to an image side, at least: a first lens group having positive refractive power; a second lens group having negative refractive power; a third lens group having positive refractive power; a fourth lens group having positive refractive power; a fifth lens group having negative refractive power; and a sixth lens group. During zooming, the distance between adjacent lens groups changes. During focusing from an object at infinity to a close object, the fifth lens group moves along an optical axis toward an imaging surface side. The second lens group includes, in order from the object side to the image side, at least: a 2a-th lens group; and a 2b-th lens group having negative refractive power. Image stabilization is performed by displacing the 2b-th lens group perpendicularly to the optical axis. The optical system satisfies a predetermined conditional expression.

公开(公告)号：US10168547B2

公开(公告)日：2019-01-01

申请号：US15955996

申请日：2018-04-18

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takakazu Bito

IPC: G02B15/14 ,  G02B27/64 ,  G02B15/173 ,  G02B15/163

Abstract: A zoom lens system according to the disclosure, in order from an object side to an image side, includes a first lens group with positive optical power, a second lens group with negative optical power, and a subsequent lens group composed of at least three lens groups. During zooming operation, the first lens group moves along the optical axis and the second lens group does not move. The second lens group has an aperture stop. The second lens group satisfies following condition (1), −9.0≤fG1/fG2≤−2.0   (1) where fG1 is the focal length of the first lens group, and fG2 is the focal length of the second lens group.