公开(公告)号：US07330316B2

公开(公告)日：2008-02-12

申请号：US11759804

申请日：2007-06-07

申请人： Atsushi Shibayama ,  Keiko Mizuguchi

发明人： Atsushi Shibayama ,  Keiko Mizuguchi

IPC分类号： G02B15/14

CPC分类号： G02B15/173

摘要： Object is to provide an inner-focusing type zoom lens system carrying out focusing by moving a portion of a first lens group suitable for an auto-focus SLR camera. A zoom lens system includes, in order from an object, a first lens group having positive refractive power, a second lens group having negative refractive power, and a third lens group having positive refractive power. Upon zooming from a wide-angle end state to a telephoto end state, a distance between the first and the second lens groups increases, and a distance between the second and the third lens groups decreases. The first lens group is composed of, in order from the object, a 1A lens group G1A having positive refractive power, and a 1B lens group G1B having positive refractive power. Focusing from infinity to a close-range object is carried out by moving only the 1B lens group G1B to the object.

摘要翻译： 目的是提供一种通过移动适合于自动对焦单反相机的第一透镜组的一部分来进行聚焦的内聚焦型变焦透镜系统。 变焦透镜系统从物体依次包括具有正折光力的第一透镜组，具有负折光力的第二透镜组和具有正折光力的第三透镜组。 当从广角端状态变焦到长焦端状态时，第一和第二透镜组之间的距离增加，并且第二和第三透镜组之间的距离减小。 第一透镜组按照从物体起依次具有正屈光力的1A透镜组G 1A和具有正屈光力的1B透镜组G 1B。 通过仅将1B透镜组G 1 B移动到物体来进行从无穷远到近距离物体的聚焦。

公开(公告)号：US20070229974A1

公开(公告)日：2007-10-04

申请号：US11759804

申请日：2007-06-07

申请人： Atsushi Shibayama ,  Keiko Mizuguchi

发明人： Atsushi Shibayama ,  Keiko Mizuguchi

IPC分类号： G02B15/14

CPC分类号： G02B15/173

摘要： Object is to provide an inner-focusing type zoom lens system carrying out focusing by moving a portion of a first lens group suitable for an auto-focus SLR camera. A zoom lens system includes, in order from an object, a first lens group having positive refractive power, a second lens group having negative refractive power, and a third lens group having positive refractive power. Upon zooming from a wide-angle end state to a telephoto end state, a distance between the first and the second lens groups increases, and a distance between the second and the third lens groups decreases. The first lens group is composed of, in order from the object, a 1A lens group G1A having positive refractive power, and a 1B lens group G1B having positive refractive power. Focusing from infinity to a close-range object is carried out by moving only the 1B lens group G1B to the object.

摘要翻译： 目的是提供一种通过移动适合于自动对焦单反相机的第一透镜组的一部分来进行聚焦的内聚焦型变焦透镜系统。 变焦透镜系统从物体依次包括具有正折光力的第一透镜组，具有负折光力的第二透镜组和具有正折光力的第三透镜组。 当从广角端状态变焦到长焦端状态时，第一和第二透镜组之间的距离增加，并且第二和第三透镜组之间的距离减小。 第一透镜组按照从物体起依次具有正折射光焦度的1A透镜组G 1A和具有正屈光力的1B透镜组G 1B。 通过将1B透镜组G 1 B移动到物体来进行从无穷远到近距离物体的聚焦。

公开(公告)号：US07253965B2

公开(公告)日：2007-08-07

申请号：US11237743

申请日：2005-09-29

申请人： Atsushi Shibayama ,  Takeshi Suzuki ,  Tomoki Ito

发明人： Atsushi Shibayama ,  Takeshi Suzuki ,  Tomoki Ito

IPC分类号： G02B15/14

CPC分类号： G02B27/646 ,  G02B15/173

摘要： To provide a zoom lens system with a vibration reduction having a long back focal length suitable for a digital SLR camera, a high zoom ratio, and a wide angle of view of 70° or more. The system includes, in order from the object, a first positive lens group, a second negative lens group, a third positive lens group, and a fourth positive lens group. Upon zooming from wide-angle end state to telephoto end state, a distance between the first and second lens groups increases, a distance between the second and third lens groups decreases, and a distance between the third and fourth lens groups varies. The third lens group is composed of a positive front lens group and a negative rear lens group. Image plane correction upon camera shake can be performed by shifting only the rear lens group substantially perpendicularly to the optical axis. Given conditions are satisfied.

摘要翻译： 为了提供具有适合于数字单反相机的长后焦距的减振的变焦透镜系统，高变焦比和70°以上的宽视角。 该系统从物体起依次包括第一正透镜组，第二负透镜组，第三正透镜组和第四正透镜组。 当从广角端状态变焦到远摄端状态时，第一和第二透镜组之间的距离增加，第二和第三透镜组之间的距离减小，并且第三和第四透镜组之间的距离变化。 第三透镜组由正前透镜组和负后透镜组组成。 可以通过基本垂直于光轴移动后透镜组来执行相机抖动时的图像平面校正。 给定条件满意。

公开(公告)号：US20060221461A1

公开(公告)日：2006-10-05

申请号：US11390291

申请日：2006-03-28

申请人： Atsushi Shibayama

发明人： Atsushi Shibayama

IPC分类号： G02B15/14

CPC分类号： G02B15/177

摘要： Providing a compact zoom lens system with high optical performance suitable for an SLR digital camera with a solid-state imaging device of the APS-C size. The zoom lens system includes, in order from an object, a first group having negative power, a second group having positive power, a third group having negative power, and a fourth group having positive power. Upon zooming from a wide-angle end state to a telephoto end state, the second, third and fourth groups are moved to the object such that a distance between the first and second groups decreases, a distance between the second and third groups increases, and a distance between the third and fourth groups decreases. Each of the first, second and fourth groups is composed of at least one positive lens and at least one negative lens. The third group consists of a single lens. Given conditional expressions are satisfied.

摘要翻译： 提供具有高光学性能的紧凑型变焦镜头系统，适用于具有APS-C尺寸固态成像装置的SLR数码相机。 变焦透镜系统从物体起依次包括具有负功率的第一组，具有正功率的第二组，具有负功率的第三组和具有正功率的第四组。 在从广角端状态变焦到远摄端状态时，第二组，第三组和第四组移动到对象，使得第一组和第二组之间的距离减小，第二组和第三组之间的距离增加，并且 第三组和第四组之间的距离减小。 第一，第二和第四组中的每一个由至少一个正透镜和至少一个负透镜组成。 第三组由单个镜头组成。 给定条件表达式是满意的。

公开(公告)号：US06987623B2

公开(公告)日：2006-01-17

申请号：US10769873

申请日：2004-02-03

申请人： Atsushi Shibayama

发明人： Atsushi Shibayama

IPC分类号： G02B15/14

CPC分类号： G02B15/177 ,  G02B13/06

摘要： The invention provides a fisheye lens system having an angle of view of 170 degrees or more capable of being used with a plurality of cameras having different image formats in size. The lens system includes a first lens group G1 having negative refractive power disposed to the most object side and a second lens group G2 having positive refractive power disposed to an image side of the first lens group. A distance between the first lens group G1 and the second lens group G2 is variable. The lens system takes the maximum focal length state when the distance is minimum and the minimum focal length state when the distance is maximum. The maximum image height in the maximum focal length state is different from that in the minimum focal length state. In each focal length state, the fisheye lens system has an angle of view of 170 degrees or more.

摘要翻译： 本发明提供了一种具有170度或更大视角的鱼眼镜头系统，其能够与具有不同图像格式的多个照相机一起使用。 透镜系统包括设置在最物体侧的具有负折光力的第一透镜组G 1和设置在第一透镜组的像侧的具有正折光力的第二透镜组G 2。 第一透镜组G 1和第二透镜组G 2之间的距离是可变的。 当距离最小时，透镜系统采用最大焦距状态，当距离最大时采用最小焦距状态。 最大焦距状态下的最大图像高度与最小焦距状态不同。 在每个焦距状态下，鱼眼镜头系统具有170度或更大的视角。

公开(公告)号：US06304389B1

公开(公告)日：2001-10-16

申请号：US09630586

申请日：2000-08-01

申请人： Atsushi Shibayama

发明人： Atsushi Shibayama

IPC分类号： G02B1514

CPC分类号： G02B15/177

摘要： The present invention makes it possible to provide a variable focal length lens system having a zoom ratio of 2.5 or over, a field angle of 60° or over at the wide-angle end, and an excellent imaging quality which is suited for use with a video camera and the like. According to one aspect of the present invention, a variable focal length lens system has, in order from an object side, a first negative lens group G1, a second positive lens group G2, and a third positive lens group G3. The first lens group includes, in order from the object side, a negative lens unit 1-1 U11 and a positive lens unit 1-2 U12 separated by predetermined air space; and the second lens group includes, in order from the object side, a positive lens unit 2-1 U21, a negative lens unit 2-2 U22 separated by predetermined air space, and a positive lens unit 2-3 U23 separated by predetermined air space, with the first and second lens groups being moved such that when a state of the lens group positions is changed from a wide-angle end state to a telephoto end state, a space between the first and second lens group is decreased and a space between the second and third lens groups is increased while the third lens group is fixed, and further with designated conditional equations being satisfied.

摘要翻译： 本发明使得可以在广角端提供具有2.5或更大的变焦比，60°或更大的场角的可变焦距透镜系统，以及适合与 摄像机等。 根据本发明的一个方面，可变焦距透镜系统从物体侧依次具有第一负透镜组G1，第二正透镜组G2和第三正透镜组G3。 第一透镜组从物体依次包括由预定空气间隔分开的负透镜单元1-1U11和正透镜单元1-2U12; 并且第二透镜组从物体侧依次包括由预定空气间隔开的正透镜单元2-1 U21，负透镜单元2-2 U22和由预定空气分开的正透镜单元2-3 U23 空间，其中第一和第二透镜组被移动，使得当透镜组位置的状态从广角端状态改变为远摄端状态时，第一和第二透镜组之间的空间减小，并且空间 在第三透镜组被固定的同时，在第二透镜组和第三透镜组之间增加，并且进一步满足指定的条件方程。

公开(公告)号：US5760958A

公开(公告)日：1998-06-02

申请号：US873717

申请日：1997-06-12

申请人： Atsushi Shibayama

发明人： Atsushi Shibayama

IPC分类号： G02B13/18 ,  G02B15/16 ,  G02B27/64 ,  G03B5/00 ,  G03G15/20 ,  G02B15/14

CPC分类号： G02B15/161 ,  G03G15/2028 ,  G03G15/2057 ,  G03G15/2064 ,  G03G2215/2016 ,  G03G2215/2032 ,  G03G2215/2041

摘要： A zoom lens with antivibration function is provided, in the order from the object side, with a first lens group of a positive refractive power and a second lens group of a negative refractive power, which both axially move toward the object side with a reduction in the gap therebetween in the zooming operation from the wide angle end to the telephoto end. The focusing operation from a larger object distance to a smaller object distance is achieved by an axial movement of the second lens group while the first lens group remains still, while the blur in the taken image resulting from vibration is compensated by a movement of the first lens group in a direction substantially perpendicular to the optical axis.

摘要翻译： 具有防振功能的变焦镜头以物体侧的顺序设置有正屈光力的第一透镜组和负折射光焦度的第二透镜组，其朝向物体侧轴向移动， 在从广角端到望远端的变焦操作中的间隙。 通过第二透镜组的轴向移动，通过第一透镜组的第一透镜组的移动来补偿由第二透镜组的第一透镜组的移动而使得从振动产生的拍摄图像中的模糊被补偿， 透镜组在基本上垂直于光轴的方向上。

公开(公告)号：US5694253A

公开(公告)日：1997-12-02

申请号：US595031

申请日：1996-01-31

申请人： Atsushi Shibayama

发明人： Atsushi Shibayama

IPC分类号： G02B15/173 ,  G02B15/14

CPC分类号： G02B15/173

摘要： A compact zoom lens has a high zoom ratio that is suitable for a single lens reflex camera. Embodiments of the zoom lens include, in order from the object side, a first lens unit of positive refractive power, a second lens unit of negative refractive power, and a third lens unit of positive refractive power, that all move toward the object during zooming from the maximum wide-angle state to the maximum telephoto state, with the distance between the first lens unit and the second lens unit increasing, and the distance between the second lens unit and the third lens unit decreasing; and wherein various conditions are satisfied. The zoom lens may include a focal length shorter than the length of the diagonal of the effective picture plane and a focal length longer than three times the length of the diagonal of the effective picture plane, and includes a fourth lens unit of positive refractive power on the image side of the third lens unit, wherein during zooming from the maximum wide-angle state to the maximum telephoto state, the distance between the third lens unit and the fourth lens unit decreases with the fourth lens unit also moving toward the object.

摘要翻译： 紧凑型变焦镜头具有适用于单个镜头反光相机的高变焦比。 变焦透镜的实施例按照从物体侧起依次具有正屈光力的第一透镜单元，负折光力的第二透镜单元和正折光力的第三透镜单元，在变焦期间全部朝向物体移动 从最大广角状态到最大远摄状态，第一透镜单元和第二透镜单元之间的距离增加，并且第二透镜单元与第三透镜单元之间的距离减小; 并且其中满足各种条件。 变焦镜头可以包括比有效画面的对角线的长度短的焦距和比有效画面的对角线的长度的三倍的焦距，并且包括正屈光力的第四透镜单元 第三透镜单元的图像侧，其中在从最大广角状态变焦到最大远摄状态的同时，第三透镜​​单元和第四透镜单元之间的距离随着第四透镜单元也向着物体移动而减小。

公开(公告)号：US5517357A

公开(公告)日：1996-05-14

申请号：US217879

申请日：1994-03-25

申请人： Atsushi Shibayama

发明人： Atsushi Shibayama

IPC分类号： G02B7/08 ,  G02B15/00 ,  G02B27/64 ,  G03B5/00 ,  H04N5/232 ,  G01C3/12

CPC分类号： H04N5/23258 ,  G02B27/646 ,  G03B5/00 ,  H04N5/23248 ,  H04N5/23287 ,  G03B2205/0015 ,  G03B2205/0053 ,  G03B2217/005

摘要： An optical device having an objective lens system including at least two lens groups (at least one of which is shiftable in the optical axis direction), a vibration detector for detecting a vibration of the objective lens system, and outputting a signal indicating the vibration of the objective lens system, a vibration compensation unit arranged at a position other than the position of the most-object side lens group of the objective lens system, and at least one shift amount detector for detecting the shift amount, in the optical axis direction, of the shiftable lens of the objective lens system, and outputting a signal indicating the shift amount. The drive amount of the vibration compensation unit is calculated based on the signal from the shift amount detector and the signal from the vibration detector.

摘要翻译： 一种具有物镜系统的光学装置，该物镜系统包括至少两个透镜组（其中至少一个可在光轴方向上移动），用于检测物镜系统的振动的振动检测器，并输出表示振动的信号 物镜系统，布置在物镜系统的最物体侧透镜组以外的位置处的振动补偿单元，以及用于检测光轴方向上的偏移量的至少一个偏移量检测器， 并输出表示移位量的信号。 基于来自移动量检测器的信号和来自振动检测器的信号计算振动补偿单元的驱动量。

公开(公告)号：US5000551A

公开(公告)日：1991-03-19

申请号：US532792

申请日：1990-06-04

申请人： Atsushi Shibayama

发明人： Atsushi Shibayama

IPC分类号： G02B15/173

CPC分类号： G02B15/173

摘要： A zoom lens comprises, in succession from the object side, a first lens group having a positive refractive power, a second lens group having a negative refractive power, a third lens group having a positive refractive power, and a fourth lens group having a positive refractive power, and is designed such that during the magnification change from the wide angle end to the telephoto end, the air space between the first lens group and the second lens group is enlarged, the air space between the second lens group and the third lens group is reduced and further, the air space between the third lens group and the fourth lens group is varied. The second lens group comprises, in succession from the object side, a negative meniscus lens having its convex surface facing the object side, a biconcave negative lens, and a cemented positive lens consisting of a biconvex positive lens and a biconcave negative lens cemented together, and is designed to satify the following conditions: ##EQU1##

摘要翻译： 变焦透镜从物体侧依次包括具有正折光力的第一透镜组，具有负屈光力的第二透镜组，具有正折光力的第三透镜组，以及具有正折光力的第四透镜组 并且被设计成使得在从广角端到望远端的放大率变化期间，第一透镜组和第二透镜组之间的空气空间被扩大，第二透镜组和第三透镜之间的空气空间 组进一步减少，第三透镜​​组和第四透镜组之间的空气空间变化。 第二透镜组从物体侧依次包括其凸面朝向物体侧的负凹凸透镜，双凹面负透镜和由双凸正透镜和双凹面负透镜粘合在一起的胶结正透镜， 并设计为满足以下条件：0.44 <| f2 / fw| <0.51