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    • 2. 发明公开
    • Zoom lens and photographing apparatus using the same
    • Varioobjektiv und damit ausgestatteter Fotoapparat
    • EP1148369A2
    • 2001-10-24
    • EP01303081.2
    • 2001-03-30
    • CANON KABUSHIKI KAISHA
    • Usui, FumiakiNurishi, RyujiFukami, Kiyoshi
    • G02B15/17G02B27/64
    • G02B15/17
    • A zoom lens includes, in order from an object side to an image side, a first lens unit of positive refractive power, a second lens unit of negative refractive power arranged to move during variation of magnification, a third lens unit of negative refractive power arranged to compensate for shift of an image plane due to the variation of magnification, and a fourth lens unit of positive refractive power. The fourth lens unit has a focal-length changeover subunit arranged to be insertable onto and detachable from an optical axis of the zoom lens and provided for changing the focal length of the zoom lens, and an image-stabilizing lens subunit different from the focal-length changeover subunit. The image-stabilizing lens subunit is movable in such a way as to have a component perpendicular to the optical axis so as to displace an image.
    • 变焦透镜从物体侧到像侧依次包括具有正屈光力的第一透镜单元,布置成在放大倍数变化期间移动的负折光力的第二透镜单元,布置有负折光力的第三透镜单元 以补偿由于放大率的变化引起的图像平面的偏移,以及正屈光力的第四透镜单元。 第四透镜单元具有焦距变换子单元,其布置成可插入到可变焦透镜的光轴上并且可从该变焦透镜的光轴上拆卸,并用于改变变焦透镜的焦距,以及与焦点变焦透镜不同的图像稳定透镜子单元, 长度转换子单元。 图像稳定透镜子单元可以以使得具有垂直于光轴的分量以便移位图像的方式移动。
    • 3. 发明公开
    • Zoom lens and image pickup apparatus including the same
    • Zoomobjektiv und Bildaufnahmevorrichtung damit
    • EP2506060A1
    • 2012-10-03
    • EP12002247.0
    • 2012-03-27
    • C/o Canon Kabushiki Kaisha
    • Wakazono, TsuyoshiUsui, Fumiaki
    • G02B15/17G02B15/173
    • G02B15/173
    • A zoom lens includes, in order from object side: a positive first lens unit which does not move for zooming; a zoom lens unit including at least two lens units which move for zooming; a stop; and a positive imaging lens unit which does not move for zooming, in which: the first lens unit includes, in order from object side, a positive first sub-lens unit, a negative second sub-lens unit, and a positive third sub-lens unit; the third sub-lens unit includes a movable positive sub-third sub-lens unit; the second sub-lens unit and sub-third sub-lens unit are driven to object side for focusing to a close object; and focal length f12 of the second sub-lens unit, focal length f13f of the sub-third sub-lens unit, drive amount δx12 of the second sub-lens unit in focusing, and drive amount δx13f of the sub-third sub-lens unit in focusing satisfy -2.5
    • 变焦透镜从物体侧起按顺序包括:不移动用于变焦的正的第一透镜单元; 变焦透镜单元,包括至少两个用于变焦的透镜单元; 一个停止 以及对于变焦不移动的正摄像透镜单元,其中:第一透镜单元从物体侧依次包括正的第一子透镜单元,负的第二子透镜单元和正的第三子像素单元, 镜头单元 第三子透镜单元包括可移动的正子第三子透镜单元; 第二子透镜单元和副第三子透镜单元被驱动到物体侧以聚焦到闭合物体; 和第二子透镜单元的焦距f12,副第三子透镜单元的焦距f13f,第二子透镜单元的聚焦驱动量“x12”和第三子透镜单元的驱动量“x13f” 聚焦中的lens单位满足-2.5
    • 4. 发明公开
    • Zoom lens
    • Zoomobjektiv
    • EP0893723A2
    • 1999-01-27
    • EP98305763.9
    • 1998-07-20
    • CANON KABUSHIKI KAISHA
    • Usui, Fumiaki
    • G02B15/16
    • G02B15/17
    • There is disclosed a zoom lens having, in order from an object side, a first lens unit having a positive refractive power, a second lens unit having a negative refractive power and adapted to move in the zooming operation, a third lens unit for correcting the variation in the image plane resulting from the movement of the second lens unit, and a fixed fourth lens unit having a positive refractive power, wherein an aspherical surface of a predetermined shape for satisfactorily correcting the spherical aberration and the distortion aberration resulting from the zooming operation is applied onto a predetermined lens in the lens unit.
    • 公开了一种变焦透镜,其从物体侧依次具有正屈光力的第一透镜单元(F),具有负屈光力并适于在变焦操作中移动的第二透镜单元(V), 第三透镜单元(C),用于校正由第二透镜单元的移动产生的图像平面的变化;以及固定的具有正折光力的第四透镜单元(R),其中,用于令人满意地校正的预定形状的非球面 将由变焦操作产生的球面像差和畸变像差施加到透镜单元中的预定透镜上。
    • 6. 发明公开
    • Zoom lens
    • 变焦Objektiv
    • EP0893724A1
    • 1999-01-27
    • EP98305861.1
    • 1998-07-22
    • CANON KABUSHIKI KAISHA
    • Usui, Fumiaki
    • G02B15/16G02B13/18
    • G02B15/173
    • This specification discloses a zoom lens which has, in succession from the object side, a first lens unit (F) of positive refractive power, a second lens unit (V) having negative refractive power and movable during a focal length change, a third lens unit (C) for correcting the changing of an image plane resulting from the movement of the second lens unit (V), and a fixed fourth lens unit (R) having positive refractive power, and in which an aspherical surface of a predetermined shape for well correcting spherical aberration and distortion resulting from a focal length change is provided on a predetermined lens surface in the first lens unit (F).
    • 本说明书公开了一种变形透镜,其从物体侧连续地具有正屈光力的第一透镜单元(F),具有负屈光力并在焦距变化期间可移动的第二透镜单元(V),第三透镜 用于校正由第二透镜单元(V)的移动产生的图像平面的变化的单元(C)和具有正折射力的固定的第四透镜单元(R),并且其中具有预定形状的非球面 在第一透镜单元(F)的预定透镜表面上设置由焦距变化引起的良好校正的球面像差和失真。
    • 7. 发明公开
    • Zoom lens device with inner focusing method
    • Fokussiersystem缩略图
    • EP0752605A2
    • 1997-01-08
    • EP96109976.9
    • 1996-06-20
    • CANON KABUSHIKI KAISHA
    • Usui, Fumiaki
    • G02B7/10
    • G02B15/173G02B27/0062
    • A zoom lens device including in order of lens units from the lens unit closest to an object side of the zoom lens device to an image side of the zoom lens device, a first lens unit having a positive refractive power, a second lens unit for changing magnification and having a negative refractive power, a third lens unit for correcting changes in an image plane which occur as the magnification changes, and a fourth lens unit for forming an image. The first lens unit includes (i) a front lens subunit which is stationary during focusing and which has a positive refractive power and (ii) a rear lens subunit which is movable in order to bring an object into focus. The front lens subunit includes a negative lens and a positive lens. The rear lens subunit includes a negative lens and at least two positive lenses.
    • 一种变焦透镜装置,其包括从最接近变焦透镜装置的物体侧的透镜单元到变焦透镜装置的像侧的透镜单元的顺序,具有正折光力的第一透镜单元,用于改变的第二透镜单元 具有负屈光力的第三透镜单元,用于校正随着倍率变化而发生的图像平面变化的第三透镜单元和用于形成图像的第四透镜单元。 第一透镜单元包括(i)在聚焦期间静止并且具有正屈光力的前透镜子单元,以及(ii)可移动以使物体聚焦的后透镜子单元。 前透镜子单元包括负透镜和正透镜。 后透镜子单元包括负透镜和至少两个正透镜。
    • 9. 发明公开
    • Zoom lens and image pickup apparatus including the same
    • 变焦镜头和包括它的图像拾取设备
    • EP2506059A1
    • 2012-10-03
    • EP12001930.2
    • 2012-03-20
    • Canon Kabushiki Kaisha
    • Wakazono, TsuyoshiUsui, Fumiaki
    • G02B15/167G02B15/24
    • G02B15/173
    • A zoom lens includes, in order from an object side: a first lens unit having positive refractive power which does not move for varying magnification; a magnification-varying lens unit including at least two lens units which move for varying magnification; an aperture stop; and an imaging lens unit having positive refractive power which does not move for varying magnification, in which: the first lens unit includes, in order from the object side, a first sub-lens unit having positive refractive power, a second sub-lens unit having negative refractive power, and a third sub-lens unit having positive refractive power; the second sub-lens unit is driven to the object side so as to perform focus adjustment to an object at a short distance; and the following expression is satisfied: 0.07
    • 一种变焦镜头从物体侧开始依次包括:具有正折光力的第一透镜单元,该第一透镜单元为了变倍而不移动; 包括至少两个透镜单元的放大变化透镜单元,所述透镜单元为了变化放大而移动; 一个光圈; 以及具有正屈光力的成像透镜单元,所述成像透镜单元在变倍时不移动,其中:所述第一透镜单元从物侧依次包括具有正屈光力的第一子透镜单元,第二子透镜单元 具有负屈光力,以及具有正屈光力的第三子透镜单元; 第二子透镜单元被驱动到物体侧以对近距离的物体执行聚焦调节; 并且满足以下表达式:0.07