公开(公告)号：US5321553A

公开(公告)日：1994-06-14

申请号：US26593

申请日：1993-03-05

申请人： Toshiro Ishiyama ,  Kenzaburo Suzuki

发明人： Toshiro Ishiyama ,  Kenzaburo Suzuki

IPC分类号： G02B13/18 ,  G02B15/177 ,  G02B15/14

CPC分类号： G02B13/18 ,  G02B15/177

摘要： In a zoom lens having a lens unit of negative refractive power most adjacent to the object side, distortion can be corrected better and an excellent imaging performance is maintained. In a zoom lens having a lens unit of negative refractive power most adjacent to the object side, a negative lens whose image side surface in contact with air is formed by a concave surface is provided in the lens unit of negative refractive power, and the shape of the concave surface of the negative lens is made into an aspherical surface which satisfies the condition that -5

摘要翻译： 在具有与物体侧最相邻的负折光力的透镜单元的变焦透镜中，可以更好地校正失真，并且保持优异的成像性能。 在具有与物体侧最相邻的负折射力的透镜单元的变焦透镜中，在负屈光力的透镜单元中设置有与空气接触的图像侧表面由凹面形成的负透镜， 将负透镜的凹面制成为非球面，其满足关于锥形常数κ的-5 <κ<0.75的条件，并且其曲率随着光轴的单调减小。

公开(公告)号：US07990615B2

公开(公告)日：2011-08-02

申请号：US12689948

申请日：2010-01-19

申请人： Kenzaburo Suzuki

发明人： Kenzaburo Suzuki

IPC分类号： G02B5/18

CPC分类号： G02B27/0037 ,  G02B25/001 ,  G02B27/4211 ,  G02B27/4277

摘要： A diffractive optical system including a diffractive optical element is provided with a first lens component having a first positive lens, and a second lens component having a second positive lens and a negative lens. The diffractive optical element has a first diffractive optical member having a first diffractive optical surface, and a second diffractive optical member having a second diffractive optical surface. The first diffractive optical member and the second diffractive optical member are arranged so that the first diffractive optical surface and the second diffractive optical surface are in contact with each other. A refractive index of the first diffractive optical member and a refractive index of the second diffractive optical member at the d line are different from each other.

摘要翻译： 包括衍射光学元件的衍射光学系统设置有具有第一正透镜的第一透镜部件和具有第二正透镜和负透镜的第二透镜部件。 衍射光学元件具有具有第一衍射光学表面的第一衍射光学元件和具有第二衍射光学表面的第二衍射光学元件。 第一衍射光学构件和第二衍射光学构件被布置成使得第一衍射光学表面和第二衍射光学表面彼此接触。 第一衍射光学构件的折射率和第二衍射光学构件在d线处的折射率彼此不同。

公开(公告)号：US20090310220A1

公开(公告)日：2009-12-17

申请号：US12374181

申请日：2007-07-12

申请人： Kenzaburo Suzuki

发明人： Kenzaburo Suzuki

IPC分类号： G02B27/42 ,  G02B25/00 ,  G02B9/06

CPC分类号： G02B25/001 ,  G02B5/1823 ,  G02B5/1871 ,  G02B27/0037 ,  G02B27/4211 ,  G02B27/4272

摘要： An eye piece (EL1) is formed having a first lens (L1) having a positive refractive power and a second lens (L2) having a positive refractive power, which are disposed in order from an object (O), and a contact multi-layer diffractive optical element (DOE), which has a first optical element (51) formed with a relief pattern and a second optical element (52) which is in contact with the surface of the first optical element (51) where the relief pattern is formed, is disposed on an optical surface of the first lens (L1) or the second lens (L2).

摘要翻译： 形成具有正屈光力的第一透镜（L1）和具有正折光力的第二透镜（L2）的眼部件（EL1），其从物体（O）开始依次布置， 层状衍射光学元件（DOE），其具有形成有凸版图案的第一光学元件（51）和与第一光学元件（51）的表面接触的第二光学元件（52），其中浮雕图案是 形成在第一透镜（L1）或第二透镜（L2）的光学表面上。

公开(公告)号：US07545573B2

公开(公告)日：2009-06-09

申请号：US11969879

申请日：2008-01-04

申请人： Kenzaburo Suzuki

发明人： Kenzaburo Suzuki

IPC分类号： G02B3/00 ,  G02B5/18 ,  G02B13/04 ,  G02B9/12

CPC分类号： G02B27/0037 ,  G02B9/12 ,  G02B9/20 ,  G02B9/64 ,  G02B13/22 ,  G02B27/4211 ,  G03B21/005 ,  Y10S359/90

摘要： A projector optical system for forming a real image by projecting an image of a display element has, sequentially from a screen side or an observation side, a first lens group having positive refractive power, an aperture diaphragm, a second lens group, and a third lens group having positive refractive power, with a diffractive optical element being provided on at least one of the first lens group and the second lens group which are adjacent to the aperture diaphragm. The projector optical system satisfies: 0.05

摘要翻译： 用于通过投影显示元件的图像来形成实像的投影仪光学系统从屏幕侧或观察侧依次具有正屈光力的第一透镜组，孔径光阑，第二透镜组和第三透镜组 具有正屈光力的透镜组，衍射光学元件设置在与孔径光阑相邻的第一透镜组和第二透镜组中的至少一个上。 投影仪光学系统满足：<？in-line-formula description =“In-line Formulas”end =“lead”？> 0.05 其中G是第二透镜组和第三透镜组之间的光轴上的气隙，并且L是从最靠近屏幕侧的表面到光轴的长度 显示元素。

公开(公告)号：US07511897B2

公开(公告)日：2009-03-31

申请号：US11778554

申请日：2007-07-16

申请人： Kenzaburo Suzuki

发明人： Kenzaburo Suzuki

IPC分类号： G02B9/00 ,  G02B3/00

CPC分类号： G02B27/4211 ,  G02B27/283 ,  G03B21/005

摘要： A projector optical system for forming a real image by projecting an image of a display element is constituted by, sequentially from a projection side, an aperture diaphragm; and a first lens group having positive refractive power and having, in the interior thereof or on a lens surface at a projection side or at a display element side, a diffraction optical surface formed by a multilayer-type diffractive optical element in which diffraction gratings formed on two diffractive element components are arranged facing each other. The projector optical system is configured so as to satisfy the following expression 0.1

摘要翻译： 用于通过投影显示元件的图像来形成真实图像的投影仪光学系统由从投影侧顺序地形成的孔径光阑构成; 以及具有正屈光力的第一透镜组，在其内部或在投影侧或显示元件侧的透镜表面上具有由多层型衍射光学元件形成的衍射光学表面，其中形成有衍射光栅 两个衍射元件组件彼此面对布置。 投影仪光学系统被配置为满足以下表达式：<？in-line-formula description =“In-line formula”end =“lead”？> 0.1 其中L是光轴上的总长度，K是从孔径光阑到第一透镜组的表面的距离，其最接近 并且还满足以下表达式：<？in-line-formula description =“In-line Formulas”end =“lead”？> 0.01 其中DeltaNd是主波长（d线）的两个衍射元件分量的折射率之差。

公开(公告)号：US07136226B2

公开(公告)日：2006-11-14

申请号：US10742895

申请日：2003-12-23

申请人： Kenzaburo Suzuki

发明人： Kenzaburo Suzuki

IPC分类号： G02B5/18

CPC分类号： G02B15/12

摘要： A front teleconverter lens system having superb optical performance with less production of aberration in spite of its compactness. The front teleconverter lens system includes, in order from an object, a first lens group having positive refractive power, and a second lens group having negative refractive power, and forming an afocal optical system. A diffractive optical surface is arranged in at least one of the first lens group and the second lens group. The conditional expression 1.2

摘要翻译： 尽管其紧凑性，尽管具有较差的像差产生，但具有极好的光学性能的前望远镜转换镜头系统。 前置远摄转换镜系统包括从物体开始的具有正折光力的第一透镜组和具有负屈光力的第二透镜组，并且形成无焦光学系统。 衍射光学表面布置在第一透镜组和第二透镜组中的至少一个中。 满足条件表达式1.2

公开(公告)号：US07123422B2

公开(公告)日：2006-10-17

申请号：US10950560

申请日：2004-09-28

申请人： Kenzaburo Suzuki

发明人： Kenzaburo Suzuki

IPC分类号： G02B15/14 ,  G02B27/64 ,  G02B5/18

CPC分类号： G02B15/173

摘要： To provide a zoom lens system having high optical performance by using a diffractive optical element, the system includes a first group having positive power, a second group having negative power, and a third group having positive power. When zooming from a wide-angle end state to a telephoto end state, a distance between the first group and the second group and a distance between the second group and the third group vary. The third group is composed of a front group having positive power locating to the object side of the largest space in the third group and a rear group having negative power locating to an image side of the space. The front group includes an aperture stop and a diffractive optical surface. An incident angle of a principal ray reaching the maximum image height to the diffractive optical surface is ten degrees or less. Given condition is satisfied.

摘要翻译： 为了通过使用衍射光学元件提供具有高光学性能的变焦透镜系统，该系统包括具有正功率的第一组，具有负功率的第二组和具有正功率的第三组。 当从广角端状态变焦到远摄端状态时，第一组与第二组之间的距离以及第二组与第三组之间的距离变化。 第三组由具有定位于第三组中最大空间的物体侧的正电力的前组和具有定位到该空间的像侧的负电力的后组组成。 前组包括孔径光阑和衍射光学表面。 到达衍射光学表面的最大图像高度的主光线的入射角为十度以下。 给定条件满意。

公开(公告)号：US07075734B2

公开(公告)日：2006-07-11

申请号：US11128373

申请日：2005-05-13

申请人： Kenzaburo Suzuki

发明人： Kenzaburo Suzuki

IPC分类号： G02B15/14

CPC分类号： G02B15/177

摘要： A zoom lens system having an exit pupil far away from the image plane, zoom ratio of about three, and in particular having compactness and high optical performance includes, in order from an object, a first lens group having negative refractive power, an aperture stop, a second lens group having positive refractive power, and a third lens group having positive refractive power. When zooming from a wide-angle end state to a telephoto end state, the first and second lens groups are moved and the third lens group is fixed such that a distance between the first lens group and the second lens group varies, and a distance between the second lens group and the third lens group increases. The second lens group is composed of four lenses or less and includes a diffractive optical surface formed on a lens surface except the most object side lens surface.

摘要翻译： 具有远离图像平面的出射光瞳，大约三倍的变焦倍率，特别是具有紧凑性和高光学性能的变焦透镜系统包括从物体起依次具有负屈光力的第一透镜组，孔径光阑 具有正屈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望远端状态时，移动第一透镜组和第二透镜组，并且固定第三透镜组，使得第一透镜组和第二透镜组之间的距离变化，并且第三透镜组之间的距离 第二透镜组和第三透镜组增加。 第二透镜组由四个透镜或更少的透镜组成，并且包括形成在除了最物体侧透镜表面之外的透镜表面上的衍射光学表面。

公开(公告)号：US6124990A

公开(公告)日：2000-09-26

申请号：US192916

申请日：1998-11-16

申请人： Kenzaburo Suzuki

发明人： Kenzaburo Suzuki

IPC分类号： G02B13/04 ,  G02B13/22

CPC分类号： G02B13/22 ,  G02B13/04

摘要： A close-up photographing lens (10) having a long back focus and a large aperture, thus making the lens suitable for use with high-performance electronic imaging equipment. The lens comprises, objectwise to imagewise, a first lens group (G1) having positive refractive power, a second lens group (G2) having positive refractive power, and a relay optical system (GL) having positive refractive power. The relay optical system includes a third lens group (GLN) having negative refractive power and a fourth lens group (GLP) having positive refractive power. The first lens group and the second lens group are separated by an axial air space (D12) and move objectwise on different trajectories (16,18) when changing focus from an infinite focus state to a most close-up focus state. The axial air space is narrower in the most close-up focus state than in the infinite focus state. The lens preferably satisfies at least one of a number of design conditions.

摘要翻译： 具有长后焦距和大光圈的特写摄影镜头（10），从而使镜头适合于与高性能电子成像设备一起使用。 透镜包括朝向成像方向的具有正屈光力的第一透镜组（G1），具有正屈光力的第二透镜组（G2）和具有正屈光力的中继光学系统（GL）。 中继光学系统包括具有负屈光力的第三透镜组（GLN）和具有正屈光力的第四透镜组（GLP）。 当将焦点从无限焦点状态改变到最近的焦点状态时，第一透镜组和第二透镜组被轴向空气空间（D12）分开并且在不同轨迹（16,18）上的物体移动。 在最近的焦点状态下，轴向空气空间比在无限焦点状态下更窄。 透镜优选地满足多个设计条件中的至少一个。

公开(公告)号：US5731897A

公开(公告)日：1998-03-24

申请号：US660003

申请日：1996-06-03

申请人： Kenzaburo Suzuki

发明人： Kenzaburo Suzuki

IPC分类号： G02B15/20 ,  G02B15/173 ,  G02B27/64 ,  G02B15/14

CPC分类号： G02B27/646 ,  G02B15/173

摘要： A high performance zoom lens is provided with an image stabilizing function that can maintain a sufficiently long focal length and back focus. The zoom lens with an image stabilizing function includes, in order from an object side to an image side, a first lens group having positive refractive power, a second lens group having negative refractive power, and a terminal lens group having positive refractive power arranged closest to the image side. When zooming from a maximum wide angle state to a maximum telephoto state, the distance between the first lens group and the second lens group increases, and a distance between the second lens group and the terminal lens group changes. The terminal lens group includes, in order from the object side to the image side, at least a first terminal lens group having positive refractive power and a second terminal lens group having negative refractive power, and a displacement mechanism for preventing vibration of the image by rotating the second terminal lens group around a predetermined point on the optical axis of the zoom lens.

摘要翻译： 高性能变焦镜头具有能够保持足够长焦距和后焦距的图像稳定功能。 具有图像稳定功能的变焦透镜从物体侧到像侧依次包括具有正折光力的第一透镜组，具有负折射光焦度的第二透镜组和具有最靠近排列的正折光力的端子透镜组 到图像侧。 当从最大广角状态变焦到最大远摄状态时，第一透镜组和第二透镜组之间的距离增加，并且第二透镜组和端子透镜组之间的距离改变。 终端透镜组从物体侧到像侧依次包括具有正折光力的至少第一端子透镜组和具有负屈光力的第二端子透镜组，以及用于防止图像振动的位移机构 使第二端子透镜组围绕变焦透镜的光轴上的预定点旋转。