公开(公告)号：US20250013023A1

公开(公告)日：2025-01-09

申请号：US18886111

申请日：2024-09-16

Applicant: Nikon Corporation

Inventor： Takeru UEHARA

IPC: G02B15/14 ,  G02B13/18 ,  G02B15/20 ,  G03B5/00

Abstract: A zoom optical system consists of a first lens group having negative refractive power, a second lens group having positive refractive power, and a rear lens group which are disposed in order from an object. The rear lens group comprises a last lens group and an F lens group in order from a side closest to an image. Lens groups forming the first lens group, the second lens group, and the rear lens group are configured in such a manner that, upon zooming, the respective lens groups move and a distance between the lens groups adjacent to each other changes. At least a part of the F lens group is configured to move upon focusing. Further, the following conditional expression is satisfied. −0.220

公开(公告)号：US20210341716A1

公开(公告)日：2021-11-04

申请号：US17283409

申请日：2018-11-20

Applicant: Nikon Corporation

Inventor： Takeru UEHARA

IPC: G02B15/14 ,  G02B15/20

Abstract: A zoom optical system comprises a first lens group having a positive refractive power, a second lens group having a negative refractive power, a third lens group having a positive refractive power, and a succeeding lens group, which are arranged in order from an object side. During zooming, distances between adjacent lens groups change, and the first lens group is fixed with respect to an image surface. During zooming from a wide angle end state to a telephoto end state, the third lens group moves toward an image surface. The succeeding lens group includes a last lens group arranged to be nearest to the image surface. Further, the following conditional expression is satisfied. −10.00

公开(公告)号：US20210349293A1

公开(公告)日：2021-11-11

申请号：US17283717

申请日：2018-11-20

Applicant: Nikon Corporation

Inventor： Takeru UEHARA

IPC: G02B15/14 ,  G02B15/20

Abstract: A zoom optical system comprises a first lens group having a positive refractive power, a second lens group having a negative refractive power, a third lens group having a positive refractive power, and a succeeding lens group, which are arranged in order from an object side. During zooming, distances between adjacent said lens groups change. The succeeding lens group comprises a first focusing lens group having a negative refractive power which is moved during focusing, and a second focusing lens group having a positive refractive power which is moved during focusing, which are arranged in order from an object side. Further, the following conditional expression is satisfied: 0.80

公开(公告)号：US20180307011A1

公开(公告)日：2018-10-25

申请号：US15576827

申请日：2016-05-26

Applicant: NIKON CORPORATION

Inventor： Takeru UEHARA ,  Takeshi SUZUKI ,  Kosuke MACHIDA

IPC: G02B15/177 ,  G02B13/18 ,  G02B27/64 ,  G02B15/20

CPC classification number: G02B15/177 ,  G02B13/18 ,  G02B15/20 ,  G02B27/646

Abstract: A variable magnification optical system comprising, in order from an object side, a first lens group G1 having negative refractive power, a second lens group G2 having positive refractive power, a third lens group G3 having negative refractive power and a rear group comprising at least one lens group and having positive refractive power as a whole; upon varying magnification, air intervals between the neighboring lens groups being varied; and said first lens group G1 consisting of lens component(s) having negative refractive power, thereby a variable magnification optical system having excellent optical performance, an optical apparatus and a method for manufacturing the variable magnification optical system, being provided.

公开(公告)号：US20210191112A1

公开(公告)日：2021-06-24

申请号：US16771672

申请日：2017-12-15

Applicant: Nikon Corporation

Inventor： Masashi YAMASHITA ,  Tomoki ITO ,  Hiroshi YABUMOTO ,  Hiroshi YAMAMOTO ,  Satoshi MIWA ,  Keisuke TSUBONOYA ,  Ayumu MAKIDA ,  Takeru UEHARA

IPC: G02B27/00 ,  G02B3/00 ,  G02B7/02 ,  G02B15/14 ,  G02B15/16

Abstract: An optical system (LS) includes lenses (L22,L23) satisfying the following conditional expressions, ndLZ+(0.01425×νdLZ)

公开(公告)号：US20180307012A1

公开(公告)日：2018-10-25

申请号：US15576805

申请日：2016-05-26

Applicant: NIKON CORPORATION

Inventor： Kosuke MACHIDA ,  Takeshi SUZUKI ,  Takeru UEHARA

IPC: G02B15/20 ,  G02B15/177 ,  G02B13/18 ,  G02B27/00

Abstract: Comprising, in order from an object side: a first lens group G1 having negative refractive power; a second lens group G2 having positive refractive power; a third lens group G3 having negative refractive power; a fourth lens group G4 having positive refractive power; a fifth lens group G5 having negative refractive power; and a sixth lens group G6 having positive refractive power; upon varying magnification, air distances between the neighboring lens groups G1-G6 being varied; and a predetermined conditional expression being satisfied, thereby providing a variable magnification optical system which has excellent optical performance, an optical apparatus, and a method for manufacturing a variable magnification optical system.

公开(公告)号：US20230244066A1

公开(公告)日：2023-08-03

申请号：US18132463

申请日：2023-04-10

Applicant: Nikon Corporation

Inventor： Masashi YAMASHITA ,  Tomoki ITO ,  Hiroshi YABUMOTO ,  Hiroshi YAMAMOTO ,  Satoshi MIWA ,  Keisuke TSUBONOYA ,  Ayumu MAKIDA ,  Takeru UEHARA

IPC: G02B13/18 ,  G02B13/02 ,  G02B15/14 ,  G02B27/00

CPC classification number: G02B13/18 ,  G02B13/02 ,  G02B15/144113 ,  G02B15/144511 ,  G02B15/1461 ,  G02B27/0062 ,  G02B15/1425 ,  G02B15/143105

Abstract: An optical system (LS) includes lenses (L22,L23) satisfying the following conditional expressions,


νdLZ

公开(公告)号：US20210149168A1

公开(公告)日：2021-05-20

申请号：US16622910

申请日：2018-06-20

Applicant: Nikon Corporation

Inventor： Takeru UEHARA

IPC: G02B15/20 ,  G02B13/18 ,  G03B5/00 ,  G02B15/14

Abstract: A zoom optical system consists of a first lens group having negative refractive power, a second lens group having positive refractive power, and a rear lens group which are disposed in order from an object. The rear lens group comprises a last lens group and an F lens group in order from a side closest to an image. Lens groups forming the first lens group, the second lens group, and the rear lens group are configured in such a manner that, upon zooming, the respective lens groups move and a distance between the lens groups adjacent to each other changes. At least a part of the F lens group is configured to move upon focusing. Further, the following conditional expression is satisfied. −0.220

公开(公告)号：US20210072520A1

公开(公告)日：2021-03-11

申请号：US16771668

申请日：2017-12-15

Applicant: Nikon Corporation

Inventor： Masashi YAMASHITA ,  Tomoki ITO ,  Hiroshi YABUMOTO ,  Hiroshi YAMAMOTO ,  Satoshi MIWA ,  Keisuke TSUBONOYA ,  Ayumu MAKIDA ,  Takeru UEHARA

IPC: G02B13/18 ,  G02B13/02

Abstract: An optical system (LS) Includes lenses (L22,L23) satisfying the following conditional expressions, vdLZ

公开(公告)号：US20230161141A1

公开(公告)日：2023-05-25

申请号：US18100760

申请日：2023-01-24

Applicant: Nikon Corporation

Inventor： Takeru UEHARA

IPC: G02B15/14 ,  G02B13/18 ,  G02B15/20 ,  G03B5/00

CPC classification number: G02B15/1445 ,  G02B15/143507 ,  G02B13/18 ,  G02B15/20 ,  G03B5/00 ,  G02B15/145507 ,  G02B15/144507 ,  G02B15/145523 ,  G02B15/1435 ,  G02B15/144503

Abstract: A zoom optical system consists of a first lens group having negative refractive power, a second lens group having positive refractive power, and a rear lens group which are disposed in order from an object. The rear lens group comprises a last lens group and an F lens group in order from a side closest to an image. Lens groups forming the first lens group, the second lens group, and the rear lens group are configured in such a manner that, upon zooming, the respective lens groups move and a distance between the lens groups adjacent to each other changes. At least a part of the F lens group is configured to move upon focusing. Further, the following conditional expression is satisfied.


−0.220