公开(公告)号：US20220201215A1

公开(公告)日：2022-06-23

申请号：US17289089

申请日：2019-10-28

Applicant: NIKON CORPORATION

Inventor： Satoshi KAZAHAYA ,  Yuki KINOUCHI ,  Akihiko OBAMA ,  Satoru SHIBATA

IPC: H04N5/232

Abstract: A calculation device calculating an amount of movement in an optical axis direction of a focusing lens which adjusts a focal position of an imaging optical system includes: a first input unit to which first information about a deviation between an imaging surface which captures an image by the imaging optical system and the focal position is repeatedly input; a second input unit to which second information about a shake of the imaging optical system in the optical axis direction is repeatedly input at intervals shorter than those of the first information; and a calculation unit which calculates the amount of movement on the basis of at least one of the first information and the second information, wherein the calculation unit calculates the amount of movement on the basis of the second information between an input of the first information and an input of the next first information.

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.

公开(公告)号：US20170261728A1

公开(公告)日：2017-09-14

申请号：US15430027

申请日：2017-02-10

Applicant: Nikon Corporation

Inventor： Satoru SHIBATA ,  Tomoyuki SASHIMA

IPC: G02B15/20 ,  G02B27/64

CPC classification number: G02B15/20 ,  G02B15/173 ,  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：US20200049963A1

公开(公告)日：2020-02-13

申请号：US16601602

申请日：2019-10-15

Applicant: NIKON CORPORATION

Inventor： Satoru SHIBATA ,  Tomoyuki SASHIMA

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

Abstract: A zoom optical system comprising, in order from an object side: a first lens group (G1) 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 and the intermediate lens group are moved with respect to an image surface, a distance between the first lens group and the front-side lens group is changed, and a distance between the intermediate lens group and the rear-side lens group is changed. The following conditional expression is satisfied: 0.000

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：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：US20140085732A1

公开(公告)日：2014-03-27

申请号：US14092748

申请日：2013-11-27

Applicant: NIKON CORPORATION

Inventor： Satoru SHIBATA ,  Takeshi SUZUKI ,  Hiroshi YAMAMOTO

IPC: G02B13/04

CPC classification number: G02B13/04 ,  G02B13/18 ,  G02B15/14 ,  G02B15/177 ,  G02B27/646

Abstract: Providing a zoom lens system having excellent optical performance with a high zoom ratio, an imaging apparatus, and a method for zooming the zoom lens system. The system including, in order from an object, a first group G1 having negative refractive power, a second group G2 having positive refractive power, a third group G3 having negative refractive power, and a fourth group G4 having positive refractive power. An aperture stop S is disposed between the second group G2 and the fourth group G4. Upon zooming from a wide-angle end state to a telephoto end state, each group is moved such that a distance between the second group G2 and the third group G3 increases, a distance between the third group G3 and the fourth group G4 decreases, and the aperture stop S is moved together with the third group G3. Given conditions are satisfied.

Abstract translation: 提供具有高变焦比的优异光学性能的变焦透镜系统，成像装置和用于变焦变焦透镜系统的变焦方法。 该系统从物体起依次包括具有负折光力的第一组G1，具有正屈光力的第二组G2，具有负折光力的第三组G3和具有正屈光力的第四组G4。 孔径光阑S设置在第二组G2和第四组G4之间。 在从广角端状态变焦到望远端状态时，各组移动使得第二组G2和第三组G3之间的距离增加，第三组G3和第四组G4之间的距离减小，并且 孔径光阑S与第三组G3一起移动。 给定条件满意。

公开(公告)号：US20210096345A1

公开(公告)日：2021-04-01

申请号：US16880945

申请日：2020-05-21

Applicant: Nikon Corporation

Inventor： Satoru SHIBATA ,  Tomoyuki SASHIMA

IPC: G02B15/20 ,  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. At least one of the following conditional expressions is satisfied: 0.010