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    Zoom lens and imaging apparatus
    11.
    发明授权
    Zoom lens and imaging apparatus 有权

    公开(公告)号：US11543636B2

    公开(公告)日：2023-01-03

    申请号：US17727040

    申请日：2022-04-22

    Applicant: FUJIFILM Corporation

    Inventor： Daiki Kawamura ,  Taiga Noda

    IPC: G02B15/14 ,  G02B9/60 ,  H04N5/225

    Abstract: The zoom lens includes, as lens groups, in order from the object side, only a first lens group having a positive power, a second lens group having a negative power, a third lens group having a positive power, a fourth lens group having a negative power, and a fifth lens group having a positive power. An aperture stop is disposed between a lens surface closest to the image side in the second lens group and a lens surface closest to the object side in the fourth lens group. During zooming, at least the first lens group, the second lens group, the third lens group, and the fourth lens group move. The first lens group consists of a negative lens, a positive lens, and a positive lens in order from the object side. The zoom lens satisfies predetermined conditional expressions.

    Imaging lens and imaging apparatus
    12.
    发明授权
    Imaging lens and imaging apparatus 有权

    公开(公告)号：US11353682B2

    公开(公告)日：2022-06-07

    申请号：US16774839

    申请日：2020-01-28

    Applicant: FUJIFILM Corporation

    Inventor： Daiki Kawamura ,  Michio Cho

    IPC: G02B9/30 ,  G02B7/10

    Abstract: The imaging lens comprises, successively in order from the object side, a positive first lens group that does not move during focusing, a second lens group that moves during focusing, a stop, and a positive third lens group that consists of all lenses moving integrally with the second lens group during focusing. The composite focal length of the second lens group and the third lens group is positive. The first lens group includes four or more positive lenses and three or more negative lenses. The imaging lens satisfies predetermined conditional expressions.

    Zoom lens and imaging apparatus
    13.
    发明授权
    Zoom lens and imaging apparatus 有权

    公开(公告)号：US11300764B2

    公开(公告)日：2022-04-12

    申请号：US16689242

    申请日：2019-11-20

    Applicant: FUJIFILM Corporation

    Inventor： Daiki Kawamura ,  Taiga Noda

    IPC: G02B15/14 ,  G02B9/60 ,  H04N5/225

    Abstract: The zoom lens includes, as lens groups, in order from the object side, only a first lens group having a positive power, a second lens group having a negative power, a third lens group having a positive power, a fourth lens group having a negative power, and a fifth lens group having a positive power. An aperture stop is disposed between a lens surface closest to the image side in the second lens group and a lens surface closest to the object side in the fourth lens group. During zooming, at least the first lens group, the second lens group, the third lens group, and the fourth lens group move. The first lens group consists of a negative lens, a positive lens, and a positive lens in order from the object side. The zoom lens satisfies predetermined conditional expressions.

    Zoom lens and imaging apparatus
    14.
    发明授权
    Zoom lens and imaging apparatus 有权
    变焦镜头和成像设备

    公开(公告)号：US09389400B2

    公开(公告)日：2016-07-12

    申请号：US14818689

    申请日：2015-08-05

    Applicant: FUJIFILM Corporation

    Inventor： Daiki Kawamura

    IPC: G02B15/14

    CPC classification number: G02B15/14 ,  G02B15/173

    Abstract: A zoom lens consists of, in order from the object side, a first lens group having a positive refractive power, a second lens group having a negative refractive power, one or two middle lens groups including a mp lens group having a positive refractive power, and a rearmost lens group disposed at the most image side position of the entire system and having a positive refractive power, wherein magnification change is effected by changing all distances between the adjacent lens groups, and focusing from an object at infinity to a closest object is effected by moving only the entire mp lens group or only a part of lens groups forming the mp lens group along the optical axis, the lens group moved during focusing includes a positive lens and a negative lens and has a positive refractive power as a whole, and given condition expressions are satisfied.

    Abstract translation: 变焦透镜从物体侧起依次具有正屈光力的第一透镜组，具有负屈光力的第二透镜组，包括具有正屈光力的mp透镜组的一个或两个中间透镜组， 以及设置在整个系统的最右侧位置并且具有正折光力的最后面的透镜组，其中通过改变相邻透镜组之间的所有距离并且从无限远的对象到最接近的对象的聚焦来实现放大变化 通过沿着光轴仅移动整个mp透镜组或仅形成一组透镜组的透镜组的一部分来实现，在聚焦期间移动的透镜组整体包括正透镜和负透镜，并且具有正的折射光焦度， 并给出条件表达式。

    Imaging lens and imaging apparatus
    15.
    发明授权
    Imaging lens and imaging apparatus 有权
    成像镜头和成像设备

    公开(公告)号：US09075222B2

    公开(公告)日：2015-07-07

    申请号：US14317813

    申请日：2014-06-27

    Applicant: FUJIFILM Corporation

    Inventor： Daiki Kawamura

    IPC: G02B13/00 ,  G02B9/60

    CPC classification number: G02B13/0015 ,  G02B9/60 ,  G02B13/0045 ,  H04N5/225

    Abstract: An imaging lens substantially consists of a first lens-group, a stop and a second lens-group in this order from an object-side. The first lens-group substantially consists of three or less lenses including at least one negative lens and a positive lens. The second lens-group substantially consists of a 21st lens-group and a 22nd lens-group in this order from the object-side. The 21st lens-group substantially consists of three or less lenses and has positive refractive-power. The 22nd lens-group substantially consists of two lenses of a negative lens and a positive lens in this order from the object-side. Predetermined conditional formulas about distance on an optical-axis from a most-object-side lens surface in an entire system to an image-plane, maximum image height, distance on the optical-axis from a most-object-side lens surface in the first lens-group to a most-image-side lens surface in the second lens-group, and focal-length of the entire system are satisfied.

    Abstract translation: 成像透镜基本上由物体侧依次包括第一透镜组，光阑和第二透镜组。 第一透镜组基本上由三个或更少的透镜组成，包括至少一个负透镜和正透镜。 第二透镜组从物体侧起依次由第21透镜组和第22透镜组构成。 第21透镜组基本上由三个或更少的透镜组成并具有正的折光力。 第22透镜组从物体侧开始依次由负透镜和正透镜的两个透镜组成。 关于从整个系统中的最物体侧透镜表面到像平面的光轴上的距离的预定条件公式，最大图像高度，来自最主体侧透镜表面的光轴上的距离 第一透镜组到第二透镜组中的最图像侧透镜表面，并且满足整个系统的焦距。

    Imaging lens and imaging apparatus
    16.
    发明授权
    Imaging lens and imaging apparatus 有权
    成像镜头和成像设备

    公开(公告)号：US09030757B2

    公开(公告)日：2015-05-12

    申请号：US14271969

    申请日：2014-05-07

    Applicant: FUJIFILM Corporation

    Inventor： Daiki Kawamura

    IPC: G02B13/18 ,  G02B13/04 ,  G02B9/64

    CPC classification number: G02B13/18 ,  G02B9/64 ,  G02B13/04

    Abstract: An imaging lens includes: a first lens group; an aperture stop; and a second lens group having a positive refractive power, in this order from an object side. The first lens group includes a negative first lens provided most toward the object side. The second lens group includes a positive lens, provided most toward an imaging surface, and a negative lens having a concave surface and an aspherical surface at least toward the object side. The following Conditional Formula are satisfied: 0.03

    Abstract translation: 成像透镜包括：第一透镜组; 孔径光阑; 以及从物体侧起依次具有正折光力的第二透镜组。 第一透镜组包括最靠近物体侧设置的负第一透镜。 第二透镜组包括最靠近成像表面设置的正透镜，以及至少朝向物体侧具有凹面和非球面的负透镜。 满足以下条件式：0.03 <（| Sagsp1 | - | Sagas1 |）/ Re1 <0.35; 和1.819＆nlE; NdAB其中Sagsp1是负透镜的物体侧表面的有效直径的边缘处的参考球面的下垂，Sagas1是透镜的非球面的下垂，Re1是 透镜的物体侧表面，NdAB是正透镜和负透镜的平均折射率。

    Imaging lens and imaging apparatus
    18.
    发明授权
    Imaging lens and imaging apparatus 有权

    公开(公告)号：US11841486B2

    公开(公告)日：2023-12-12

    申请号：US17155283

    申请日：2021-01-22

    Applicant: FUJIFILM Corporation

    Inventor： Daiki Kawamura ,  Michio Cho

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

    CPC classification number: G02B15/1421 ,  G02B15/20 ,  G02B27/0025

    Abstract: An imaging lens includes a positive first lens group and a second lens group, which are continuous in order from the position closest to the object side, as lens groups. During focusing, the distance between the first lens group and the second lens group changes. A stop is disposed closer to the image side than a lens which is second from the object side. A combined refractive power of all lenses closer to the object side than the stop is positive. The imaging lens includes an LA positive lens and an LB positive lens that satisfy a predetermined conditional expression at a position closer to the object side than the stop. An Abbe number of the LB positive lens is the maximum among Abbe numbers of all positive lenses closer to the object side than the stop.

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