公开(公告)号：US20150323770A1

公开(公告)日：2015-11-12

申请号：US14700276

申请日：2015-04-30

Applicant: NIKON CORPORATION

Inventor： Tomoyuki SASHIMA ,  Akihiko OBAMA

IPC: G02B15/163 ,  G02B27/00

CPC classification number: G02B15/163 ,  G02B13/18 ,  G02B15/173 ,  G02B15/20 ,  G02B27/0025

Abstract: Composing, in order from an object side: 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 and a fifth lens group; upon zooming from a wide-angle end state to a telephoto end state, a distance between the first lens group and the second lens group, a distance between the second lens group and the third lens group, a distance between the third lens group and the fourth lens group and a distance between the fourth lens group and the fifth lens group being varied, and predetermined conditional expression being satisfied, thereby providing a small-size variable magnification optical system having a high zoom ratio and a high optical performance, an optical apparatus, and a method for manufacturing the variable magnification optical system.

Abstract translation: 从物体的顺序构成：具有正折射光焦度的第一透镜组; 具有负屈光力的第二透镜组; 具有正折射力的第三透镜组; 具有正屈光力的第四透镜组和第五透镜组; 在从广角端状态变焦到望远端状态时，第一透镜组与第二透镜组之间的距离，第二透镜组与第三透镜组之间的距离，第三透镜​​组与第三透镜组之间的距离 第四透镜组和第四透镜组与第五透镜组之间的距离变化，并且满足预定条件表达式，从而提供具有高变焦比和高光学性能的小尺寸可变倍率光学系统，光学装置 ，以及可变倍率光学系统的制造方法。

公开(公告)号：US20150234160A1

公开(公告)日：2015-08-20

申请号：US14700295

申请日：2015-04-30

Applicant: NIKON CORPORATION

Inventor： Akihiko OBAMA ,  Tomoyuki SASHIMA

IPC: G02B15/14

CPC classification number: G02B15/14 ,  G02B3/02 ,  G02B3/04 ,  G02B5/005 ,  G02B9/60 ,  G02B13/0045 ,  G02B13/009 ,  G02B13/12 ,  G02B13/18 ,  G02B15/173 ,  G02B15/20 ,  G02B23/2438 ,  Y10T29/49826

Abstract: Comprising, in order from an object side: a first lens group G1 having positive refractive power; a second lens group G2 having negative refractive power; a third lens group G3 having positive refractive power; a fourth lens group G4 having positive refractive power; and a fifth lens group; upon zooming from a wide-angle end state to a telephoto end state, the distance between the first lens group G1 and the second lens group G2, the distance between the second lens group G2 and the third lens group G3, and the distance between the third lens group G3 and the fourth lens group G4, and the distance between the fourth lens group G4 and the fifth lens group G5 being varied, and the fifth lens group G5 being fixed in a position; and a predetermined conditional expression being satisfied, thereby providing a variable magnification optical system that has a high variable magnification ratio, is compact in size and has high optical performance, an optical apparatus, and a method for manufacturing the variable magnification optical system.

Abstract translation: 从物体侧起依次包括具有正折射力的第一透镜组G1; 具有负屈光力的第二透镜组G2; 具有正屈光力的第三透镜组G3; 具有正屈光力的第四透镜组G4; 和第五透镜组; 在从广角端状态变焦到望远端状态时，第一透镜组G1和第二透镜组G2之间的距离，第二透镜组G2和第三透镜组G3之间的距离以及第二透镜组G2之间的距离 第三透镜组G3和第四透镜组G4，第四透镜组G4和第五透镜组G5之间的距离变化，第五透镜组G5固定在一个位置; 并且满足预定的条件表达式，从而提供具有高可变放大比，尺寸紧凑并且具有高光学性能的可变倍率光学系统，光学装置和用于制造可变倍率光学系统的方法。

公开(公告)号：US20240302635A1

公开(公告)日：2024-09-12

申请号：US18656533

申请日：2024-05-06

Applicant: Nikon Corporation

Inventor： Satoru SHIBATA ,  Tomoyuki SASHIMA

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

CPC classification number: G02B15/145113 ,  G02B15/145129 ,  G02B15/1461 ,  G02B15/173 ,  G02B27/646

Abstract: A zoom optical system comprises, in order from an object side: a first lens group having positive refractive power; a front-side lens group; an intermediate lens group having positive refractive power; and a rear-side lens group. The front-side lens group is composed of one or more lens groups and has a negative lens group. At least part of the intermediate lens group is a vibration-proof lens group that is movable with a displacement component in a direction orthogonal to an optical axis, and at least part of the intermediate lens group is a focusing lens group. The rear-side lens group is composed of one or more lens groups. Upon zooming, distances between the first lens group and the front-side lens group, the front-side lens group and the intermediate lens group, the intermediate lens group and the rear-side lens group change. The following conditional expression is satisfied:


0.20

公开(公告)号：US20230324657A1

公开(公告)日：2023-10-12

申请号：US18208677

申请日：2023-06-12

Applicant: Nikon Corporation

Inventor： Tomoyuki SASHIMA ,  Akihiko OBAMA

IPC: G02B15/14 ,  G02B27/64

CPC classification number: G02B15/143105 ,  G02B27/646 ,  Y10T29/49826

Abstract: A variable magnification optical system includes, in order from an object side, a first lens group having positive refractive power; a second lens group having negative refractive power; and a third lens group having positive refractive power; upon zooming from a wide-angle end state to a telephoto end state, a distance between the first lens group and the second lens group and a distance between the second lens group and the third lens group being varied. The variable magnification optical system further includes a V lens group GV having negative refractive power and being moved to have a component in a direction perpendicular to the optical axis, and an F lens group GF having positive refractive power and being moved along the optical axis upon focusing from an infinitely distant object to a close object, the V lens group GV being disposed on the more object side than the F lens group GF. Thereby, it is possible to provide the compact variable magnification optical system with a high zoom ratio and high performance, an optical apparatus therewith and a method for manufacturing the variable magnification optical system.

公开(公告)号：US20230056627A1

公开(公告)日：2023-02-23

申请号：US17717014

申请日：2022-04-08

Applicant: Nikon Corporation

Inventor： Satoru SHIBATA ,  Tomoyuki SASHIMA

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

Abstract: A zoom optical system comprises, in order from an object side: a first lens group having positive refractive power; a front-side lens group; an intermediate lens group having positive refractive power; and a rear-side lens group. The front-side lens group is composed of one or more lens groups and has a negative lens group. At least part of the intermediate lens group is a focusing lens group. The rear-side lens group is composed of one or more lens groups. Upon zooming, distances between the first lens group and the front-side lens group, between the front-side lens group and the intermediate lens group, and between the intermediate lens group and the rear-side lens group change. The following conditional expressions are satisfied: −10.000

公开(公告)号：US20180267280A1

公开(公告)日：2018-09-20

申请号：US15984344

申请日：2018-05-19

Applicant: NIKON CORPORATION

Inventor： Satoru SHIBATA ,  Tomoyuki SASHIMA

IPC: G02B15/20 ,  G02B15/173 ,  G02B27/64

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

Abstract: A first lens group (G1) having positive refractive power, a front-side lens group (GX), an intermediate lens group (GM) having positive refractive power, and a rear-side lens group (GR) are arranged in order from an object side. The front-side lens group (GX) is composed of one or more lens groups and has a negative lens group At least part of the intermediate lens group (GM) is a focusing lens group (GF). The rear-side lens group (GR) is composed of one or more lens groups. Upon zooming, the first lens group (G1) is moved with respect to an image surface, a distance between the first lens group (G1) and the front-side lens group (GX) is changed, a distance between the front-side lens group (GX) and the intermediate lens group (GM) is changed, and a distance between the intermediate lens group (GM) and the rear-side lens group (GR) is changed.

公开(公告)号：US20170075093A1

公开(公告)日：2017-03-16

申请号：US15331816

申请日：2016-10-22

Applicant: Nikon Corporation

Inventor： Tomoyuki SASHIMA ,  Akihiko OBAMA

IPC: G02B15/173 ,  G02B15/20 ,  G02B5/00

CPC classification number: G02B15/173 ,  G02B5/005 ,  G02B13/009 ,  G02B13/18 ,  G02B15/20

Abstract: A variable magnification optical system comprises, in order from an object side: 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; and a fifth lens group; upon varying magnification from a wide-angle end state to a telephoto end state, a distance between the first lens group and the second lens group, a distance between the second lens group and the third lens group, a distance between the third lens group and the fourth lens group and a distance between the fourth lens group and the fifth lens group being varied, the fifth lens group being moved with respect to the image plane; upon focusing the third lens group being moved along the optical axis; and the given conditional expressions being satisfied; thereby providing a small-size variable magnification optical system having a high variable magnification ratio and an excellent optical performance.

Abstract translation: 可变放大倍率光学系统从物体侧依次包括具有正折射光焦度的第一透镜组; 具有负屈光力的第二透镜组; 具有正折射力的第三透镜组; 具有正屈光力的第四透镜组; 和第五透镜组; 在从广角端状态到望远端状态的变化倍率上，第一透镜组和第二透镜组之间的距离，第二透镜组和第三透镜组之间的距离，第三透镜​​组与第三透镜组之间的距离， 第四透镜组和第四透镜组与第五透镜组之间的距离改变，第五透镜组相对于像平面移动; 在第三透镜组沿光轴移动时聚焦; 并且给定的条件表达式被满足; 从而提供具有高可变放大比和优异光学性能的小尺寸可变放大光学系统。

公开(公告)号：US20240118525A1

公开(公告)日：2024-04-11

申请号：US18276028

申请日：2022-02-17

Applicant: Nikon Corporation

Inventor： Tomoyuki SASHIMA ,  Takahiro ISHIKAWA ,  Fumiaki OHTAKE

IPC: G02B15/14 ,  G02B13/02

CPC classification number: G02B15/144515 ,  G02B13/02

Abstract: A variable magnification optical system (ZL) comprises a first lens group (G1) having negative refractive power, and a rear group (GR) having at least one lens group, the distance between lens groups adjacent to each other changes when the magnification is changed, and the following conditional expression is satisfied. 0.90

公开(公告)号：US20230367108A1

公开(公告)日：2023-11-16

申请号：US18226247

申请日：2023-07-25

Applicant: Nikon Corporation

Inventor： Satoru SHIBATA ,  Tomoyuki SASHIMA

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

CPC classification number: G02B15/145113 ,  G02B15/1461 ,  G02B15/145129 ,  G02B15/173 ,  G02B27/646

Abstract: A zoom optical system comprises, in order from an object side: a first lens group having positive refractive power; a front-side lens group; an intermediate lens group having positive refractive power; and a rear-side lens group. The front-side lens group is composed of one or more lens groups and has a negative lens group. At least part of the intermediate lens group is a focusing lens group. The rear-side lens group is composed of one or more lens groups. Upon zooming, the first lens group is moved with respect to an image surface and distances between the first lens group and the front-side lens group, between the front-side lens group and the intermediate lens group, and between the intermediate lens group and the rear-side lens group change. The following conditional expressions are satisfied:


−0.750

公开(公告)号：US20180267281A1

公开(公告)日：2018-09-20

申请号：US15984347

申请日：2018-05-19

Applicant: NIKON CORPORATION

Inventor： Satoru SHIBATA ,  Tomoyuki SASHIMA

IPC: G02B15/20 ,  G02B15/173 ,  G02B27/64

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

Abstract: A first lens group (G1) having positive refractive power, a front-side lens group (GX), an intermediate lens group (GM) having positive refractive power, and a rear-side lens group (GR) are arranged in order from an object side. The front-side lens group (GX) is composed of one or more lens groups and has a negative lens group At least part of the intermediate lens group (GM) is a focusing lens group (GF). The rear-side lens group (GR) is composed of one or more lens groups. Upon zooming, the first lens group (G1) is moved with respect to an image surface, a distance between the first lens group (G1) and the front-side lens group (GX) is changed, a distance between the front-side lens group (GX) and the intermediate lens group (GM) is changed, and a distance between the intermediate lens group (GM) and the rear-side lens group (GR) is changed.