公开(公告)号：US20220260814A1

公开(公告)日：2022-08-18

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 ,  G02B7/14 ,  G02B7/10

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：US20230367186A1

公开(公告)日：2023-11-16

申请号：US18142264

申请日：2023-05-02

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yuka IKEGAMI ,  Takahiro KITADA ,  Kunio DOHNO

IPC: G03B17/14 ,  G02B9/16 ,  G02B7/02 ,  H04N23/12 ,  H04N23/60

CPC classification number: G03B17/14 ,  G02B9/16 ,  G02B7/021 ,  H04N23/12 ,  H04N23/64

Abstract: An imaging optical system consists of: a first lens group having positive power; a second lens group having negative power; and a third lens group having positive power. The first lens group and the third lens group are fixed with respect to an image plane, with the second lens group moving along an optical axis, while the imaging optical system is focusing to make a transition from an infinity in-focus state toward a close-object in-focus state. The first lens group consists of: a sub-lens group G1A; an aperture stop; and a sub-lens group G1B. The sub-lens group G1A includes: a lens L1A1 having negative power; a lens L1A2 having negative power; and a lens L1A3 having negative power.

公开(公告)号：US20190312999A1

公开(公告)日：2019-10-10

申请号：US16437372

申请日：2019-06-11

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yoshiaki KURIOKA ,  Takahiro KITADA

IPC: H04N5/225 ,  G02B7/02 ,  G03B17/14

Abstract: An imaging optical system includes lens group Gm located on that is closest to an object among lens groups in which a distance between the lens groups changes during zooming, the lens groups having negative power. Lens group Gm includes, in order from the object side toward an image side, lens element LGmF1 having the negative power, lens element LGmF2 having the negative power, both surfaces of lens element LGmF2 having an aspherical shape, and at least two lens elements having power. The present disclosure provides the imaging optical system having good various aberrations such as spherical aberration, astigmatism, and distortion and an imaging device and a camera system that are provided with the imaging optical system.

公开(公告)号：US20210132346A1

公开(公告)日：2021-05-06

申请号：US17085410

申请日：2020-10-30

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takahiro KITADA

IPC: G02B15/177 ,  G02B15/20 ,  G02B15/14 ,  G02B27/00 ,  H04N5/225

Abstract: An imaging optical system includes: a first lens group having negative power; a second lens group having positive power; a third lens group having negative power; and a fourth lens group having power, which are arranged in this order such that the first lens group is located closest to an object and the fourth lens group is located closest to an optical image. The first lens group includes: a first negative lens; a second negative lens; and a third negative lens which is a meniscus lens having negative power and a convex surface facing the optical image, which are arranged in this order such that the first negative lens is located closest to the object and the third negative lens is located closest to the optical image. During focusing from an infinity focus point toward a close focus point, the third lens group moves along an optical axis.

公开(公告)号：US20180180860A1

公开(公告)日：2018-06-28

申请号：US15850537

申请日：2017-12-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yoshiaki KURIOKA ,  Takahiro KITADA

IPC: G02B15/173 ,  G02B27/00 ,  G02B13/02

CPC classification number: G02B15/173 ,  G02B13/02 ,  G02B27/0025 ,  G02B27/4205 ,  G02B27/646 ,  G03B2205/0007

Abstract: An imaging optical system of the present disclosure includes a first lens group having positive power, a second lens group having negative power, a third lens group having the positive power, and a succeeding lens group including one or more lens groups in order from an object side toward an image side. The third lens group includes a lens having the positive power and a lens having the positive power in order from the object side toward the image side, and includes a lens L3R1 having the positive power, a lens L3R2 having the positive power, and a lens L3R3 having the negative power in order from the image side toward the object side. The lens L3R2 and the lens L3R3 are bonded, the lens L3R1 moves to optically correct image blur, and at least a distance between the second lens group and the third lens group changes during zooming from a wide angle end to a telephoto end.

公开(公告)号：US20240192475A1

公开(公告)日：2024-06-13

申请号：US18532417

申请日：2023-12-07

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takahiro KITADA

IPC: G02B15/14 ,  G02B7/14

CPC classification number: G02B15/144503 ,  G02B7/14

Abstract: A zoom lens system includes multiple lens groups and an aperture stop. The multiple lens groups consist of: a first lens group having negative power; a second lens group having positive power, a third lens group having negative power; and a fourth lens group having negative power. The aperture stop is disposed between the first and second lens groups. The zoom lens system satisfies 0.5

公开(公告)号：US20230171477A1

公开(公告)日：2023-06-01

申请号：US18095240

申请日：2023-01-10

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yoshiaki KURIOKA ,  Takahiro KITADA

IPC: H04N23/55 ,  G02B7/02 ,  G03B17/14 ,  G02B15/20 ,  G02B13/18

CPC classification number: H04N23/55 ,  G02B7/021 ,  G02B13/18 ,  G02B15/20 ,  G03B17/14

Abstract: An imaging optical system includes lens group Gm located on that is closest to an object among lens groups in which a distance between the lens groups changes during zooming, the lens groups having negative power. Lens group Gm includes, in order from the object side toward an image side, lens element LGmF1 having the negative power, lens element LGmF2 having the negative power, both surfaces of lens element LGmF2 having an aspherical shape, and at least two lens elements having power. The present disclosure provides the imaging optical system having good various aberrations such as spherical aberration, astigmatism, and distortion and an imaging device and a camera system that are provided with the imaging optical system.

公开(公告)号：US20210356723A1

公开(公告)日：2021-11-18

申请号：US17243984

申请日：2021-04-29

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takahiro KITADA ,  Yuka KUDO ,  Masafumi SUEYOSHI ,  Jindong LI

IPC: G02B15/14 ,  G02B13/02 ,  G02B13/18

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 negative power; and a fifth lens group having positive power. The first lens group is made up of a single lens. The second lens group is made up of four lenses. While the zoom lens system is zooming from a wide-angle end toward a telephoto end during a shooting session, the fifth lens group does not move but the first to fourth lens groups move to change intervals between the lens groups.