公开(公告)号：US20230143770A1

公开(公告)日：2023-05-11

申请号：US17917551

申请日：2021-01-12

Applicant: Nikon Corporation

Inventor： Mami MURATANI ,  Taku MATSUO ,  Satoshi MIWA ,  Yoko KOMATSUBARA ,  Akino KONDO

IPC: G02B9/12 ,  G02B13/18

CPC classification number: G02B9/12 ,  G02B13/18

Abstract: An optical system used in an optical apparatus, such as a camera 1, is configured to include a plurality of lens groups such that at focusing the distances between the lens groups are varied, that a final lens group disposed closest to an image side of the lens groups includes at least one lens surface having a pole, and that all of the following conditional expressions are satisfied:


0.020

公开(公告)号：US20200026094A1

公开(公告)日：2020-01-23

申请号：US16495805

申请日：2018-03-09

Applicant: Nikon Corporation

Inventor： Satoshi MIWA ,  Hiroshi YABUMOTO

IPC: G02B27/42 ,  G02B27/64 ,  G02B15/20 ,  G02B15/14

Abstract: [Problem to be Solved]There are provided an optical system having good imaging performance, an optical apparatus, and a method for manufacturing the optical system.[Solution]An optical system OL used in an optical apparatus, such as a camera 1, includes a diffractive optical element GD and at least one specific lens Lp, which is a lens made of crystalline glass. The specific lens Lp satisfies the condition expressed by the following expression: θgFp+0.0017×νdp

公开(公告)号：US20180031811A1

公开(公告)日：2018-02-01

申请号：US15550440

申请日：2016-02-25

Applicant: Nikon Corporation

Inventor： Satoshi MIWA ,  Masashi YAMASHITA

IPC: G02B15/167 ,  G02B7/04 ,  G02B27/64 ,  G02B13/02 ,  G02B27/00

CPC classification number: G02B15/167 ,  G02B7/04 ,  G02B13/02 ,  G02B15/22 ,  G02B15/28 ,  G02B27/0037 ,  G02B27/646

Abstract: An optical system includes: a first lens group having a positive refractive power, a second lens group having a negative refractive power, and a third lens group, disposed in this order along an optical axis starting from an object side, wherein: the second lens group is movable along the optical axis to perform focusing from an infinity-distance object to a short-distance object; and the third lens group comprises: a vibration-proofing lens group configured to be movable in a direction having a component perpendicular to the optical axis to perform image surface correction on image blurring; and an adjustment lens group that is disposed closer to an image side than the vibration-proofing lens group is, the adjustment lens group including a negative lens Ln and a lens group having a positive refractive power, disposed next to the negative lens Ln, and the adjustment lens group being capable of adjusting an air gap between the negative lens Ln and the lens group having a positive refractive power.

公开(公告)号：US20230152556A1

公开(公告)日：2023-05-18

申请号：US17917933

申请日：2021-03-04

Applicant: Nikon Corporation

Inventor： Fumiaki OHTAKE ,  Satoshi MIWA ,  Atsuki ITO

IPC: G02B9/14 ,  G02B13/00

CPC classification number: G02B9/14 ,  G02B13/005

Abstract: An optical system used in an optical apparatus is configured to include a first lens group having positive refractive power, a focusing group that moves along an optical axis at focusing, and a rear group, in order from an object side, so that the first lens group includes a first-A lens group disposed on the object side of the largest air space A in the first lens group, and that all of the following conditional expressions are satisfied:


1.00

公开(公告)号：US20220121021A1

公开(公告)日：2022-04-21

申请号：US17423882

申请日：2019-01-31

Applicant: Nikon Corporation

Inventor： Ayumu MAKIDA ,  Tomoki ITO ,  Satoshi MIWA

IPC: G02B15/14 ,  G02B15/20 ,  G02B27/00

Abstract: A zoom optical system (ZL), comprises, in order from an object: a first lens group (G1) having a positive refractive power; a second lens group (G2) having a negative refractive power; a third lens group (G3) having a positive refractive power; a fourth lens group (G4) having a positive refractive power; a fifth lens group (G5); and a sixth lens group (G6). In the zoom optical system, upon zooming, a distance between the adjacent lens groups changes. The zoom optical system satisfies the following conditional expression. 1.00

公开(公告)号：US20220121020A1

公开(公告)日：2022-04-21

申请号：US17423880

申请日：2019-01-31

Applicant: Nikon Corporation

Inventor： Ayumu MAKIDA ,  Tomoki ITO ,  Satoshi MIWA

IPC: G02B15/14

Abstract: A zoom optical system (ZL) comprises, in order from an object: a first lens group (G1) having a positive refractive power; and a second lens group (G2) having a negative refractive power, wherein upon zooming, a distance between the adjacent lens groups changes. The zoom optical system further comprises an aperture stop (S) disposed closer to an image than the second lens group (G2, and satisfies the following conditional expression: 0.10

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：US20220269056A1

公开(公告)日：2022-08-25

申请号：US17636872

申请日：2020-08-26

Applicant: Nikon Corporation

Inventor： Masashi YAMASHITA ,  Tomoki ITO ,  Tomonori KURIBAYASHI ,  Keigo KOIDA ,  Satoshi MIWA ,  Yoko KOMATSUBARA ,  Katsuya WATANABE ,  Azuna NONAKA ,  Ayumu MAKIDA

IPC: G02B15/14 ,  G02B13/00

Abstract: This optical system (LS) has an aperture diaphragm (S) and a negative lens (L4) disposed closer to an object side than the aperture diaphragm (S) and satisfies the following conditional expression. −0.010

公开(公告)号：US20210055530A1

公开(公告)日：2021-02-25

申请号：US16321011

申请日：2017-07-27

Applicant: Nikon Corporation

Inventor： Satoshi MIWA ,  Hiroshi YABUMOTO

IPC: G02B15/14 ,  G02B27/42

Abstract: An optical system (OL) used for an optical apparatus such as a camera (1) includes a focusing group (Gf) that moves upon focusing, a diffractive optical element (GD) disposed on an object side of the focusing group (Gf) and a negative lens element (Lin) disposed on the object side of the diffractive optical element (GD). The optical system (OL) satisfies the following expressions. 0.030

公开(公告)号：US20220334365A1

公开(公告)日：2022-10-20

申请号：US17636870

申请日：2020-08-26

Applicant: Nikon Corporation

Inventor： Masashi YAMASHITA ,  Tomoki ITO ,  Tomonori KURIBAYASHI ,  Keigo KOIDA ,  Satoshi MIWA ,  Yoko KOMATSUBARA ,  Katsuya WATANABE ,  Azuna NONAKA ,  Ayumu MAKIDA

IPC: G02B15/14

Abstract: An optical system (LS) has an aperture stop (S), and a positive lens (L4) disposed closer to the object side than the aperture stop (S). The positive lens (L4) satisfies the following conditional expressions. −0.010