公开(公告)号：US20080212184A1

公开(公告)日：2008-09-04

申请号：US10581550

申请日：2005-09-30

申请人： Motoyuki Ohtake

发明人： Motoyuki Ohtake

IPC分类号： G02B27/64 ,  G02B15/16

CPC分类号： G02B27/646 ,  G02B15/173

摘要： Provided are a zoom lens and an imaging apparatus using the zoom lens, the zoom lens being suited for achieving compactness without increasing the number of lenses and being capable of implementing motion blur compensation. The zoom lens includes lenses arranged in order from an object side into a first lens group having positive refractive power, a second lens group having negative refractive power, a third lens group having positive refractive power, a fourth lens group having positive refractive power, and a fifth lens group having positive refractive power. In the event of a shift of a lens position mode from a wide angle end mode to a telephoto end mode, the first lens group is fixed along an optical axis direction, the second lens group moves to an image side, the third lens group is fixed along the optical axis direction, the fourth lens group compensates for a fluctuation in an image plane position due to the shift of the second lens group, and concurrently moves along the optical axis direction in a close-distance focusing event, and the fifth lens group is fixed along the optical axis direction. An aperture diaphragm is disposed in the vicinity of the third lens group. The fifth lens group includes a negative sub lens group having negative refractive power and a positive sub lens group having a positive refractive power, wherein the image can be shifted in conjunction with a shift of the positive sub lens group in a direction substantially perpendicular to the optical axis. The zoom lens satisfies conditional equation (1) given as 0.6

摘要翻译： 提供了一种变焦透镜和使用变焦透镜的成像装置，该变焦透镜适合于在不增加透镜数量的情况下实现紧凑性，并且能够实现运动模糊补偿。 变焦透镜包括从物体侧依次排列成具有正折射光焦度的第一透镜组，具有负屈光力的第二透镜组，具有正屈光力的第三透镜组，具有正屈光力的第四透镜组，以及 具有正屈光力的第五透镜组。 在透镜位置模式从广角端模式移动到长焦端模式的情况下，第一透镜组沿光轴方向固定，第二透镜组移动到图像侧，第三透镜​​组为 沿着光轴方向固定，第四透镜组补偿由于第二透镜组的移动而导致的图像平面位置的波动，并且在近距离聚焦事件中同时沿着光轴方向移动，并且第五透镜 组沿光轴方向固定。 孔径光阑设置在第三透镜组附近。 第五透镜组包括具有负折光力的负副透镜组和具有正折光力的正副透镜组，其中图像可以与正子透镜组在基本上垂直于正方向的方向的移动一起移动 光轴。 变焦透镜满足作为0.6

公开(公告)号：US20070201145A1

公开(公告)日：2007-08-30

申请号：US11700847

申请日：2007-02-01

申请人： Motoyuki Ohtake

发明人： Motoyuki Ohtake

IPC分类号： G02B15/14

CPC分类号： G02B15/173 ,  G02B7/102

摘要： A variable focal length lens system includes first to fourth lens groups having positive, negative, positive, and positive powers, respectively, and a fifth lens group arranged in this order from an object side. When a lens zoom position is changed from a wide-angle to a telephoto, the first to fourth groups are movable and the second group is moved towards the image side and the third group is moved towards the object side so that a distance between the first and second groups increases and a distance between the second and third groups decreases, and the fourth group is moved along an optical axis direction so as to compensate for the positional change in the image plane. The fifth group includes a negative subgroup having negative power and a positive subgroup disposed on the image side of the negative subgroup and having positive power, and a predetermined condition is satisfied.

摘要翻译： 可变焦距透镜系统包括分别具有正，负，正和正功率的第一至第四透镜组以及从物体侧依次排列的第五透镜组。 当透镜变焦位置从广角变为长焦时，第一至第四组可移动，第二组朝向图像侧移动，第三组朝向物体侧移动，使得第一组 并且第二组增加，并且第二组和第三组之间的距离减小，并且第四组沿着光轴方向移动，以补偿图像平面中的位置变化。 第五组包括具有负功率的负子组和设置在负子组的像侧并具有正功率的正子组，并且满足预定条件。

公开(公告)号：US20070188887A1

公开(公告)日：2007-08-16

申请号：US11699413

申请日：2007-01-30

申请人： Motoyuki Ohtake

发明人： Motoyuki Ohtake

IPC分类号： G02B15/14

CPC分类号： G02B15/173 ,  G02B27/646

摘要： A zoom lens system includes, in order from the object side, a first lens unit having positive refractive power, a second lens unit having negative refractive power, a third lens unit having positive refractive power, a fourth lens unit having positive refractive power, and a fifth lens unit. When the lens positions change from the wide-angle end to the telephoto end, at least the first to fourth lens units are movable in an optical axis direction. The fifth lens unit includes a negative subunit having negative refractive power and a positive subunit having positive refractive power and being disposed on the image side of the negative subunit with a predetermined air gap the negative subunit and the positive subunit, and is capable of shifting the image by shifting the positive subunit in a direction substantially orthogonal to the optical axis.

摘要翻译： 变焦透镜系统从物体侧依次包括具有正屈光力的第一透镜单元，具有负屈光力的第二透镜单元，具有正屈光力的第三透镜单元，具有正屈光力的第四透镜单元，以及 第五透镜单元。 当透镜位置从广角端向望远端变化时，至少第一至第四透镜单元可沿光轴方向移动。 第五透镜单元包括具有负折光力的负子单元和具有正折光力的正亚单元，并且设置在具有预定气隙的负子单元的像侧上的负亚单元和正亚单元，并且能够使 通过在与光轴基本正交的方向上移动正亚基来形成图像。

公开(公告)号：US06480341B2

公开(公告)日：2002-11-12

申请号：US09739321

申请日：2000-12-19

申请人： Motoyuki Ohtake

发明人： Motoyuki Ohtake

IPC分类号： G02B1514

CPC分类号： G02B15/173

摘要： A variable focal length lens system with an angle of view of more than 80 in the wide-angle end state capable to focusing to a near distant object is provided. According to one aspect, a variable focal length lens system includes, in order from the object side, 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, and a fourth lens group G4 having a negative refractive power. When the state of lens positions is changed from a wide-angle end state to a telephoto end state, all the lens groups are moved to the object side such that the interval between the first lens group G1 and the second lens group G2 increases, the interval between the second lens group G2 and the third lens group G3 decreases, and the interval between the third lens group G3 and the fourth lens group G4 decreases. Each lens group from the first lens group G1 through the third lens group G3 is composed of two lens elements or more. Predetermined conditional expressions are satisfied.

摘要翻译： 提供了一种可以在能够聚焦到近距离物体的广角端状态下具有大于80°的视角的可变焦距透镜系统。 根据一个方面，可变焦距透镜系统从物体侧依次包括具有正折光力的第一透镜组G1，具有负屈光力的第二透镜组G2，具有正折光力的第三透镜组G3 屈光力，以及具有负屈光力的第四透镜组G4。 当透镜位置的状态从广角端状态改变为望远端状态时，所有透镜组移动到物体侧，使得第一透镜组G1和第二透镜组G2之间的间隔增加， 第二透镜组G2和第三透镜组G3之间的间隔减小，并且第三透镜组G3与第四透镜组G4之间的间隔减小。 来自第一透镜组G1至第三透镜组G3的每个透镜组由两个透镜元件组成或更多。 满足预定条件表达式。

公开(公告)号：US06339509B1

公开(公告)日：2002-01-15

申请号：US09499642

申请日：2000-02-08

申请人： Motoyuki Ohtake

发明人： Motoyuki Ohtake

IPC分类号： G02B1514

CPC分类号： G02B15/167

摘要： A variable focal length optical system of reducing size and increased zoom ratio is provided. According to one aspect. at least three lens groups, in order from an object side, a first lens group G1 having a positive refractive power, a second lens group G2 having a positive refractive power, and a third lens group G3 having a negative refractive power. When a state of lens group positions is changed from a wide-angle end state to a telephoto end state, each lens group moves to the object side such that an air gap between the first lens group G1 and the second lens group G2 increases, and an air gap between the second lens group G2 and the third lens group G3 decreases. An aperture diaphragm is arranged between the first lens group G1 and the third lens group G3. The second lens group G2 is arranged in the vicinity of the aperture diaphragm and has a positive lens having double aspherical surfaces. Particular conditions are satisfied.

摘要翻译： 提供了减小尺寸和增加变焦比的可变焦距光学系统。 根据一个方面 至少三个透镜组，从物体侧开始，具有正折光力的第一透镜组G1，具有正折光力的第二透镜组G2和具有负折光力的第三透镜组G3。 当透镜组位置的状态从广角端状态改变为望远端状态时，每个透镜组移动到物体侧，使得第一透镜组G1和第二透镜组G2之间的气隙增加，并且 第二透镜组G2和第三透镜组G3之间的空气间隙减小。 在第一透镜组G1和第三透镜组G3之间布置孔径光阑。 第二透镜组G2布置在孔径光阑附近，并具有具有双非球面的正透镜。 特殊条件得到满足。

公开(公告)号：US6031669A

公开(公告)日：2000-02-29

申请号：US977926

申请日：1997-11-24

申请人： Motoyuki Ohtake

发明人： Motoyuki Ohtake

IPC分类号： G02B13/18 ,  G02B15/173 ,  G02B15/20 ,  G02B15/14 ,  G02B3/02 ,  G02B9/00

CPC分类号： G02B15/173

摘要： A high-performance zoom lens is disclosed having at least four axially movable lens groups for zooming from a wide-angle end to a telephoto end. The zoom lens constitutes a number of lens elements that is no more than twice the number of movable lens groups, thereby facilitating compactness. The movable lens groups include a first, or most objectwise, movable lens group having positive refractive power, and a rear, or most imagewise, movable lens group having negative refractive power. The zoom lens satisfies at least one of four conditions, including:0.3

摘要翻译： 公开了一种高性能变焦透镜，其具有用于从广角端变焦到望远端的至少四个可轴向移动的透镜组。 变焦透镜构成多个透镜元件的数量不超过可移动透镜组的数量的两倍，从而便于紧凑。 可移动透镜组包括具有正折射光焦度的第一或最对象可移动透镜组，以及具有负屈光力的后或最成像的可移动透镜组。 变焦透镜满足四个条件中的至少一个条件，包括：0.3 <（fW-BfW）/（fT-BfT）<0.54，其中fW和BfW分别是变焦镜头在宽幅处的焦距和后焦点， 角度端，fT和BfT分别是变焦镜头在长焦端的焦距和后焦距。

公开(公告)号：US6002527A

公开(公告)日：1999-12-14

申请号：US22242

申请日：1998-02-11

申请人： Motoyuki Ohtake

发明人： Motoyuki Ohtake

IPC分类号： G02B15/17 ,  G02B15/14 ,  G02B3/02 ,  G02B9/00 ,  G02B9/60

CPC分类号： G02B15/17

摘要： A compact, high-zoom-ratio, high-performance five-group zoom lens having a positive-negative-negative-positive-positive refractive power arrangement. The zoom lens has the ability to focus at close range with minimal movement of the internal lens groups. Each lens group is axially movable, with the second or third lens group available for close-range focusing. The first lens group includes one negative lens element and two positive lens elements. The second lens group includes two negative lens elements and one positive lens element. The third lens group includes one negative lens element and one positive lens element. The fourth lens group includes two positive lens elements and one negative lens element. And, the fifth lens group includes three positive lens elements and two negative lens elements. An aperture stop is disposed imagewise of the third lens group and objectwise of the fifth lens group. The zoom lens preferably satisfies at least one of a number of design conditions.

摘要翻译： 具有正 - 负 - 正 - 正折射力配置的紧凑，高变焦比的高性能五组变焦镜头。 变焦镜头能够以近距离对焦，内部镜头组的移动最小。 每个透镜组可轴向移动，第二或第三透镜组可用于近距离对焦。 第一透镜组包括一个负透镜元件和两个正透镜元件。 第二透镜组包括两个负透镜元件和一个正透镜元件。 第三透镜组包括一个负透镜元件和一个正透镜元件。 第四透镜组包括两个正透镜元件和一个负透镜元件。 而且，第五透镜组包括三个正透镜元件和两个负透镜元件。 孔径光阑被设置在第三透镜组成像并且朝向第五透镜组的方向。 变焦镜头优选地满足多个设计条件中的至少一个。

公开(公告)号：US5887202A

公开(公告)日：1999-03-23

申请号：US921320

申请日：1997-08-29

申请人： Motoyuki Ohtake ,  Koichi Ohshita

发明人： Motoyuki Ohtake ,  Koichi Ohshita

IPC分类号： G03B3/10 ,  G02B7/08 ,  G02B7/10 ,  G02B7/28 ,  G03B13/34 ,  G03B13/36

CPC分类号： G02B7/102

摘要： A position controlling device in a lens system with a variable focal length with high-precision focusing having a small amount of required recorded information, even when there are large number of divisions of the object distance and of the focal length includes a distance measuring device that detects the object position and transmits photographic distance information. A detecting device detects the movement amount from a standard position of the movable lens group of the lens system when the focal length of the lens system changes. A calculating device calculates the required movement of the focusing lens unit of the lens system, based on the photographic distance information and the movement amount of the movable lens unit. Finally, a controlling device drives the focusing lens unit and performs focusing, based on the required movement calculated by the calculating device. The movable lens unit moves monotonically to the object side or to an image side when the focal length of the lens system is changed. In this manner, the focusing movement required increases monotonically and gradually when the focal length of the lens system changes from the wide-angle end to the telephoto end for a given photographic distance.

摘要翻译： 具有可变焦距的具有可变焦距的透镜系统中的位置控制装置，具有少量所需记录信息的高精度对焦，即使当对象距离和焦距的分割数量大时，也包括距离测量装置， 检测物体位置并发送摄影距离信息。 当透镜系统的焦距变化时，检测装置从透镜系统的可移动透镜组的标准位置检测移动量。 计算装置基于拍摄距离信息和可移动透镜单元的移动量来计算透镜系统的聚焦透镜单元所需的移动。 最后，控制装置根据由计算装置计算的所需运动来驱动聚焦透镜单元并进行聚焦。 当透镜系统的焦距改变时，可移动透镜单元单调地移动到物体侧或图像侧。 以这种方式，当对于给定的摄影距离，当透镜系统的焦距从广角端到远摄端改变时，所需的聚焦运动单调递增地逐渐增加。

公开(公告)号：US5835287A

公开(公告)日：1998-11-10

申请号：US713857

申请日：1996-09-12

申请人： Motoyuki Ohtake

发明人： Motoyuki Ohtake

IPC分类号： G02B13/18 ,  G02B15/177 ,  G02B15/20 ,  G02B9/58 ,  G02B9/34

CPC分类号： G02B15/177

摘要： A variable focal length optical system includes, in succession from an object side, a first lens component, a second lens component, a third lens component, and a fourth lens component, wherein at least two air gaps of a first air gap between the first lens component and the second lens component, a second air gap between the second lens component and the third lens component, and a third air gap between the third lens component and the fourth lens component change when the focal length of the zoom lens is changed.

摘要翻译： 可变焦距光学系统包括从物体侧连续地包括第一透镜部件，第二透镜部件，第三透镜​​部件和第四透镜部件，其中，在第一透镜部件，第二透镜部件和第四透镜部件之间的第一气隙的至少两个气隙 透镜部件和第二透镜部件，第二透镜部件和第三透镜部件之间的第二气隙，以及当变焦透镜的焦距改变时，第三透镜​​部件和第四透镜部件之间的第三气隙改变。

公开(公告)号：US5796527A

公开(公告)日：1998-08-18

申请号：US660197

申请日：1996-06-03

申请人： Motoyuki Ohtake

发明人： Motoyuki Ohtake

IPC分类号： G02B13/18 ,  G02B15/16 ,  G02B15/14 ,  G02B3/02

CPC分类号： G02B15/161

摘要： A small, high performance zoom optical system has a simple structure that includes a positive lens group having a positive refractive power and a negative lens group having a negative refractive power arranged on an image side of the positive lens group. The positive lens group includes, in order from an object side, a first lens component with a negative refractive power, a second lens component with a negative refractive power and a third lens component with a positive refractive power. The first lens component has a meniscus shape with a concave surface facing the object side. Zooming is performed by changing the distance between the positive lens group and the negative lens group.

摘要翻译： 一种小型高性能变焦光学系统具有简单的结构，其包括具有正屈光力的正透镜组和具有布置在正透镜组的像侧上的负折光力的负透镜组。 正透镜组从物体侧依次包括具有负屈光力的第一透镜部件，具有负屈光力的第二透镜部件和具有正屈光力的第三透镜部件。 第一透镜部件具有面向物体侧的凹面的弯液面形状。 通过改变正透镜组和负透镜组之间的距离来进行变焦。