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    Zoom lens, optical apparatus and method for manufacturing the zoom lens
    1.
    发明授权
    Zoom lens, optical apparatus and method for manufacturing the zoom lens 有权

    公开(公告)号：US10816781B2

    公开(公告)日：2020-10-27

    申请号：US15462811

    申请日：2017-03-18

    申请人： Nikon Corporation

    发明人： Atsushi Suzuki ,  Kenji Ishida ,  Saburo Masugi

    IPC分类号： G02B15/14 ,  G02B15/16 ,  G02B15/20 ,  G02B15/173 ,  G02B5/20

    摘要： 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 negative refractive power, and a fifth lens group (G5) having positive refractive power are arranged in order from an object, and zooming is performed by changing distances between each lens group, and the first lens group (G1) is composed of three or more lenses, the fourth lens group (G4) is composed of two or less lenses, and the fifth lens group (G5) is composed of two or less lenses and moves to an image surface side upon zooming from a wide angle end state to a telephoto end state, and the following conditional expression (1) is satisfied. 8.40

    Zoom lens, an optical apparatus, and a manufacturing method of the zoom lens
    2.
    发明授权
    Zoom lens, an optical apparatus, and a manufacturing method of the zoom lens 有权

    公开(公告)号：US10133040B2

    公开(公告)日：2018-11-20

    申请号：US15161242

    申请日：2016-05-21

    申请人： Nikon Corporation

    发明人： Atsushi Suzuki

    IPC分类号： G02B15/14 ,  G02B15/173 ,  G02B5/00 ,  G02B27/64

    摘要： 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 negative refractive power, and a fifth lens group (G5) having a positive refractive power are arranged in order along an optical axis from an object, and distances between each lens group change when zooming, and the first lens group (G1) is composed of two lenses, and the following expression (1) is satisfied: 0.07

    OPTICAL SYSTEM, OPTICAL APPARATUS, AND METHOD FOR MANUFACTURING THE OPTICAL SYSTEM
    3.
    发明申请
    OPTICAL SYSTEM, OPTICAL APPARATUS, AND METHOD FOR MANUFACTURING THE OPTICAL SYSTEM 审中-公开
    光学系统，光学装置和制造光学系统的方法

    公开(公告)号：US20150241666A1

    公开(公告)日：2015-08-27

    申请号：US14426754

    申请日：2014-02-13

    申请人： Nikon Corporation

    发明人： Keigo Koida ,  Atsushi Suzuki

    IPC分类号： G02B13/04 ,  G02B7/02 ,  G02B13/18

    CPC分类号： G02B13/04 ,  G02B7/021 ,  G02B13/18 ,  Y10T29/49826

    摘要： An optical system has, in order from an object: a first lens having negative refractive power; a second lens having positive refractive power; a third lens having positive refractive power; a fourth lens having negative refractive power; a fifth lens having negative refractive power; and a sixth lens having positive refractive power, wherein the following conditional expression (1) is satisfied: 1.52

    摘要翻译： 光学系统从物体起依次为：具有负屈光力的第一透镜; 具有正折射光焦度的第二透镜; 具有正折射光焦度的第三透镜; 具有负屈光力的第四透镜; 具有负屈光力的第五透镜; 和具有正折光力的第六透镜，其中满足以下条件表达式（1）：1.52

    OPTICAL SYSTEM, OPTICAL APPARATUS AND METHOD FOR MANUFACTURING THE OPTICAL SYSTEM
    8.
    发明申请
    OPTICAL SYSTEM, OPTICAL APPARATUS AND METHOD FOR MANUFACTURING THE OPTICAL SYSTEM 审中-公开
    光学系统，光学设备和制造光学系统的方法

    公开(公告)号：US20150085377A1

    公开(公告)日：2015-03-26

    申请号：US14381277

    申请日：2013-02-26

    申请人： Nikon Corporation

    发明人： Atsushi Suzuki

    IPC分类号： G02B13/04 ,  G02B13/00

    CPC分类号： G02B13/04 ,  G02B13/0045 ,  G02B13/18 ,  Y10T29/49826

    摘要： Provided is an optical system having, in order from an Object, a first lens group (G1) having negative refractive power and a second lens group (G2), wherein the first lens group (G1) includes, in order from the object, a first negative lens (L11) and a second negative lens (L12) having a concave surface facing the object, and the following conditional expression (1) is satisfied: 7.94≦(−fn12)/f

    摘要翻译： 本发明提供一种具有从Object开始的具有负折光力的第一透镜组（G1）和第二透镜组（G2）的光学系统，其中，第一透镜组（G1）按照从物体的顺序包括 第一负透镜（L11）和具有面向物体的凹面的第二负透镜（L12），满足以下条件式（1）：7.94＆nlE;（ - fn12）/ f <48.00（1）其中fn12表示 第二负透镜（L12）的焦距，f表示整个光学系统的焦距。