Zoom lens system, imaging device and camera
    1.
    发明授权
    Zoom lens system, imaging device and camera 有权
    变焦镜头系统,成像设备和相机

    公开(公告)号:US09086579B2

    公开(公告)日:2015-07-21

    申请号:US13337326

    申请日:2011-12-27

    IPC分类号: G02B15/177 G02B27/64

    CPC分类号: G02B27/646 G02B15/177

    摘要: A zoom lens system comprising: a first lens unit having negative optical power; a second lens unit having positive optical power; and a third lens unit having positive optical power, wherein the first to third lens units are individually moved along an optical axis to vary magnification in zooming, each lens unit includes at least one lens element that satisfies the conditions: nd≦1.67, vd

    摘要翻译: 一种变焦透镜系统,包括:具有负光焦度的第一透镜单元; 具有正光焦度的第二透镜单元; 以及具有正光焦度的第三透镜单元,其中所述第一至第三透镜单元沿光轴单独移动以改变变焦倍数,每个透镜单元包括满足以下条件的至少一个透镜元件:nd&nlE; 1.67,vd < 59和0.000

    Zoom lens system, interchangeable lens apparatus and camera system
    2.
    发明授权
    Zoom lens system, interchangeable lens apparatus and camera system 有权
    变焦镜头系统,可互换镜头设备和相机系统

    公开(公告)号:US08472123B2

    公开(公告)日:2013-06-25

    申请号:US12416377

    申请日:2009-04-01

    IPC分类号: G02B15/14

    CPC分类号: G02B15/17

    摘要: A zoom lens system is provided that includes a compactly constructed focusing lens unit and that has a suppressed change in the image magnification at the time of movement of a focusing lens unit. The zoom lens system according to the present invention comprises a plurality of lens units and an aperture diaphragm arranged in the lens unit. The plurality of lens units include a focusing lens unit that is arranged on an object side relative to the aperture diaphragm and that moves in a direction along the optical axis at the time of focusing. Further, the zoom lens system satisfies at least one of the following conditions: (1) 1.2 3.0, fF: a focal length of the focusing lens unit, fT: a focal length of the entire system at a telephoto limit, fW: focal length of the entire system at a wide-angle limit).

    摘要翻译: 提供一种变焦透镜系统,其包括紧凑构造的聚焦透镜单元,并且在聚焦透镜单元移动时具有抑制的图像放大率的变化。 根据本发明的变焦透镜系统包括布置在透镜单元中的多个透镜单元和孔径光阑。 多个透镜单元包括聚焦透镜单元,该聚焦透镜单元布置在相对于孔径光阑的物体侧并且在聚焦时沿着光轴的方向移动。 此外,变焦透镜系统满足以下条件中的至少一个:(1)1.2 <| fF / fW | <6.0; f(f):聚焦透镜单元的焦距,fT:远摄极限系统整体的焦距,fW:焦点 整个系统的长度在广角限度)。

    Zoom lens system, imaging device and camera
    3.
    发明授权
    Zoom lens system, imaging device and camera 有权
    变焦镜头系统,成像设备和相机

    公开(公告)号:US08064144B2

    公开(公告)日:2011-11-22

    申请号:US12676231

    申请日:2008-09-11

    IPC分类号: G02B15/14

    CPC分类号: G02B15/173 G02B13/12

    摘要: A zoom lens system according to the present invention, from an object side to an image side, comprises a first lens unit having positive optical power, a second lens unit having negative optical power, a third lens unit having positive optical power, and a fourth lens unit having positive optical power. In zooming, the first to the fourth lens units all move along the optical axis. The condition (8): 0.15 35; dG3 is an optical axial center thickness of the third lens unit; dG is a sum of the optical axial thicknesses of the first to the fourth lens units; ω is a half view angle at a wide-angle limit; fT is a focal length of the entire system at a telephoto limit; and fW is a focal length of the entire system at a wide-angle limit). As a result, the zoom lens system has a reduced size and still realizes a wide view angle at a wide-angle limit, as well as a remarkably high zooming ratio and high performance.

    摘要翻译: 根据本发明的变焦透镜系统,从物体侧到像侧包括具有正光焦度的第一透镜单元,具有负光焦度的第二透镜单元,具有正光焦度的第三透镜单元,以及第四透镜单元 具有正光焦度的透镜单元。 在变焦中,第一至第四透镜单元全部沿光轴移动。 满足条件(8):0.15 35; dG3是第三透镜单元的光轴向中心厚度; dG是光轴向厚度之和 的第一到第四透镜单元的角度;ω是广角限制的半视角; fT是整个系统在远摄极限处的焦距; fW是整个系统在宽视角下的焦距, 角度限制)。 结果,变焦透镜系统具有减小的尺寸,并且在广角限制下仍然实现宽视角,以及非常高的变焦比和高性能。

    ZOOM LENS SYSTEM, INTERCHANGEABLE LENS APPARATUS AND CAMERA SYSTEM
    4.
    发明申请
    ZOOM LENS SYSTEM, INTERCHANGEABLE LENS APPARATUS AND CAMERA SYSTEM 有权
    变焦镜头系统,可互换镜头设备和摄像机系统

    公开(公告)号:US20100091174A1

    公开(公告)日:2010-04-15

    申请号:US12416531

    申请日:2009-04-01

    IPC分类号: H04N5/232 G02B15/20

    CPC分类号: G02B15/17 G02B27/646

    摘要: A zoom lens system is provided that includes a compactly constructed focusing lens unit and that has a suppressed change in the image magnification at the time of movement of a focusing lens unit. The zoom lens system according to the present invention comprises: a positive lens unit that is arranged on an object side relative to the aperture diaphragm; a negative lens unit that is arranged on an image side relative to the positive lens unit and on an object side relative to the aperture diaphragm; and a focusing lens unit that is arranged in an optical path between the negative lens unit and the aperture diaphragm. The zoom lens system satisfies the condition (4): 1.20 3.0, βNT(βNW): a composite focal length of the focusing lens unit and the negative lens unit in an infinity in-focus condition at a telephoto (wide-angle) limit when the focusing lens unit has negative optical power, or a lateral magnification of the negative lens unit at a telephoto limit in an infinity in-focus condition when the focusing lens unit has positive optical power, fT: a focal length of the entire system at a telephoto limit, fW: a focal length of the entire system at a wide-angle limit.

    摘要翻译: 提供一种变焦透镜系统,其包括紧凑构造的聚焦透镜单元,并且在聚焦透镜单元移动时具有抑制的图像放大率的变化。 根据本发明的变焦透镜系统包括:相对于孔径光阑布置在物体侧的正透镜单元; 负透镜单元,其相对于所述正透镜单元布置在图像侧,并且在物体侧相对于所述孔径光阑; 以及配置在负透镜单元和孔径光阑之间的光路中的聚焦透镜单元。 变焦透镜系统满足条件(4):1.20 3.0,&bgr; NT(&bgr; NW):聚焦透镜单元的复合焦距 在聚焦透镜单元具有负光焦度时在长焦(广角)极限处于无限远对焦状态的负透镜单元,或在无限远对焦条件下的远距离处的负透镜单元的横向放大率 当聚焦透镜单元具有正光焦度时,fT:在远摄极限处整个系统的焦距,fW:整个系统的广角范围的焦距。

    ZOOM LENS SYSTEM, INTERCHANGEABLE LENS APPARATUS AND CAMERA SYSTEM
    5.
    发明申请
    ZOOM LENS SYSTEM, INTERCHANGEABLE LENS APPARATUS AND CAMERA SYSTEM 有权
    变焦镜头系统,可互换镜头设备和摄像机系统

    公开(公告)号:US20100091123A1

    公开(公告)日:2010-04-15

    申请号:US12416588

    申请日:2009-04-01

    IPC分类号: H04N5/228 G02B27/64 G02B15/14

    摘要: A zoom lens system is provided that includes a compactly constructed focusing lens unit and that has a suppressed change in the image magnification at the time of movement of a focusing lens unit and further that can compensate an image blur caused by vibration applied to the entire system. The zoom lens system according to the present invention comprises a plurality of lens units and an aperture diaphragm arranged in the lens unit. The plurality of lens units include: a negative lens unit that is arranged on an object side relative to the aperture diaphragm and provided with negative optical power having an absolute value greatest in the entire system and that moves in a direction along an optical axis at the time of zooming; a focusing lens unit that is arranged in an optical path between the negative lens unit and the aperture diaphragm and that moves in a direction along the optical axis at the time of focusing such that an interval relative to the negative lens unit should vary; and an image blur compensation lens unit that is arranged on the image side relative to the focusing lens unit and that moves in a direction perpendicular to the optical axis when the image blur caused by vibration in the zoom lens system should be compensated.

    摘要翻译: 提供一种变焦透镜系统,其包括紧凑构造的聚焦透镜单元,并且抑制了聚焦透镜单元移动时的图像放大率的变化,并且还可以补偿由施加到整个系统的振动引起的图像模糊 。 根据本发明的变焦透镜系统包括布置在透镜单元中的多个透镜单元和孔径光阑。 多个透镜单元包括:负透镜单元,其相对于孔径光阑布置在物体侧,并且在整个系统中具有绝对值最大的负光焦度,并且在沿着光轴的方向上移动 缩放时间; 聚焦透镜单元,布置在负透镜单元和孔径光阑之间的光路中,并且在聚焦时沿着光轴的方向移动,使得相对于负透镜单元的间隔应变化; 以及图像模糊补偿透镜单元,其被配置在相对于聚焦透镜单元的像侧,并且当应当补偿由变焦透镜系统中的振动引起的图像模糊时,在垂直于光轴的方向上移动。

    Zoom lens, still image camera comprising the zoom lens, and video camera comprising the zoom lens

    公开(公告)号:US20080106790A1

    公开(公告)日:2008-05-08

    申请号:US12005077

    申请日:2007-12-20

    IPC分类号: G02B27/64 G02B15/14

    CPC分类号: G02B15/173 G02B27/646

    摘要: Provided from the object side are a first lens group (11) having a positive refracting power and fixed to the image plane, a second lens group (12) having a negative refracting power and a magnification varying action exhibited when moving along the optical axis, a third lens group (13) fixed to the image plane and having a positive refracting power, and a fourth lens group (14) movable along the optical axis so as to maintain the image plane moving with the movements of the second lens group (12) and of the object in a fixed position from a reference plane. Hence the movement of the image due to camera shake is corrected by moving the whole third lens group (13) vertically to the optical axis. The size is reduced and the aberrations are small because the whole groups whose optical performance is united are decentered.

    Aspherical zoom lens
    8.
    发明授权
    Aspherical zoom lens 失效
    非球面变焦镜头

    公开(公告)号:US5583698A

    公开(公告)日:1996-12-10

    申请号:US255069

    申请日:1994-06-07

    IPC分类号: G02B15/173 G02B15/14

    CPC分类号: G02B15/173

    摘要: The aspherical zoom lens of the invention includes sequentially from an object side: a first lens group which has a positive refractive power and is fixed relative to an image plane; a second lens group which has a negative refractive power and is movable on an optical axis of the aspherical zoom lens so as to have a magnification changing function; a third lens group which has a positive refractive power and is fixed relative to the image plane so as to have a light converging function; and a fourth lens group which has a positive refractive power and is movable on the optical axis so that the image plane displaceable in response to travel of the second lens group and movement of the object is fixed at a position spaced by a predetermined distance from a reference face. An air space is provided between the third and the fourth lens groups. When viewed sequentially from the object side, the first lens group includes a negative lens, a positive lens and a meniscus positive lens, the second lens group includes a meniscus negative lens, a double concave lens and a positive lens, the third lens group includes a single lens having at least one aspherical face and the fourth lens group includes a cemented doublet and a positive lens, at least one of which has at least one aspherical face.

    摘要翻译: 本发明的非球面变焦透镜从物体侧依次包括:具有正折光力并相对于像面固定的第一透镜组; 第二透镜组,其具有负屈光力并且可在非球面变焦透镜的光轴上移动以具有倍率变化功能; 第三透镜组,其具有正的折光力并相对于像面固定以具有聚光功能; 以及第四透镜组,其具有正折光力并且可在光轴上移动,使得响应于第二透镜组的移动而移动的像面和物体的移动被固定在与 参考面。 在第三透镜组和第四透镜组之间设置空间。 当从物体侧依次观察时,第一透镜组包括负透镜,正透镜和弯液面正透镜,第二透镜组包括弯液面负透镜,双凹透镜和正透镜,第三透镜​​组包括 具有至少一个非球面的单透镜和第四透镜组包括胶合双面和正透镜,其中至少一个具有至少一个非球面。

    Wide-conversion lens and a zoom lens with it
    9.
    发明授权
    Wide-conversion lens and a zoom lens with it 失效
    宽转换镜头和变焦镜头

    公开(公告)号:US5555132A

    公开(公告)日:1996-09-10

    申请号:US114946

    申请日:1993-09-01

    IPC分类号: G02B15/10 G02B15/02

    CPC分类号: G02B15/10

    摘要: A wide-conversion lens for attachment to a master lens system consists of a bi-negative first lens in a object side and a bi-positive second lens in a master lens side, and in the second lens its radii of curvature of both surfaces are selected the same.

    摘要翻译: 用于连接到主透镜系统的宽转换透镜由物镜侧的双负第一透镜和主透镜侧的双正第二透镜组成,并且在第二透镜中,两面的曲率半径为 选择相同。

    Zoom lens system, imaging device and camera
    10.
    发明授权
    Zoom lens system, imaging device and camera 有权
    变焦镜头系统,成像设备和相机

    公开(公告)号:US08885265B2

    公开(公告)日:2014-11-11

    申请号:US13337325

    申请日:2011-12-27

    摘要: A zoom lens system comprising: a negative first lens unit; a positive second lens unit; and a positive third lens unit, wherein the first to third lens units are individually moved along an optical axis to vary magnification in zooming, the first lens unit is composed of two lens elements and includes a positive lens element having at least one aspheric surface, the third lens unit is composed of one lens element, and the condition: 1.74

    摘要翻译: 一种变焦透镜系统,包括:负第一透镜单元; 正的第二透镜单元; 和正的第三透镜单元,其中所述第一至第三透镜单元沿着光轴分别移动以改变变焦倍率,所述第一透镜单元由两个透镜元件组成,并且包括具有至少一个非球面的正透镜元件, 第三透镜单元由一个透镜元件组成,并且条件为:(。(| DL1×fG1 |))}(DL1:物镜侧第一透镜元件的光学轴向厚度 第一透镜单元,fG1:第一透镜单元的焦距,Ir = fT×tan(ωT),fT和ωT:整个系统的焦距和在远摄极限处的最大视角的半值) ; 成像装置; 并提供相机。