公开(公告)号：US07453642B2

公开(公告)日：2008-11-18

申请号：US11420156

申请日：2006-05-24

申请人： Makoto Fujimoto ,  Akihiro Nishio

发明人： Makoto Fujimoto ,  Akihiro Nishio

IPC分类号： G02B15/14

CPC分类号： G02B15/173 ,  G02B27/646

摘要： Disclosed is a compact zoom lens system having a image stabilizing function. This zoom lens system is provided with a plurality of lens units of which the interval between adjacent ones is changed during zooming. Shake correction is effected by a part of a lens unit of negative optical power of the plurality of lens units. Specifically, the lens unit of negative optical power is comprised of two lens components of negative optical power, and one of these two lens components is moved so as to have a component in a direction perpendicular to an optical axis to thereby change the imaging position of the zoom lens system.

摘要翻译： 公开了具有图像稳定功能的紧凑型变焦透镜系统。 该变焦透镜系统设置有多个透镜单元，其中相邻间隔之间的间隔在变焦期间被改变。 振动校正由多个透镜单元的负光焦度的透镜单元的一部分来实现。 具体地，负光焦度的透镜单元由负光焦度的两个透镜部件组成，并且这两个透镜部件中的一个被移动以具有与光轴垂直的方向的分量，从而改变成像位置 变焦镜头系统。

公开(公告)号：US20050275947A1

公开(公告)日：2005-12-15

申请号：US11150456

申请日：2005-06-10

申请人： Akihiro Nishio

发明人： Akihiro Nishio

IPC分类号： G02B13/00 ,  C09J11/04 ,  C09J125/04 ,  C09J133/12 ,  C09J139/04 ,  G02B1/04 ,  G02B3/00 ,  G02B13/02 ,  G02B13/04 ,  G02B13/16 ,  G02B13/18 ,  G02B15/20

CPC分类号： G02B13/16

摘要： Disclosed is an optical system in which an adhesive layer of a cemented lens is made of a mixture in which inorganic fine particles dispersed into a transparent medium. Therefore, there is realized an optical system capable of effectively correcting chromatic aberration while having a structure in which a manufacturing cost is low and an environmental resistance is high.

摘要翻译： 公开了一种光学系统，其中粘结透镜的粘合剂层由其中分散在透明介质中的无机细颗粒的混合物制成。 因此，实现了能够有效地校正色差同时具有制造成本低，耐环境性高的结构的光学系统。

公开(公告)号：US06724992B2

公开(公告)日：2004-04-20

申请号：US10346150

申请日：2003-01-16

申请人： Yumiko Kato ,  Akihiro Nishio

发明人： Yumiko Kato ,  Akihiro Nishio

IPC分类号： G03B1310

CPC分类号： G03B13/10

摘要： A compact finder with excellent optical performance, and a camera including the finder are disclosed. The finder of the present invention includes an objective optical system, and an eyepiece optical system. The objective optical system includes, from an object side to an image side, a first lens unit having positive power, a second lens unit having negative power, a third lens unit having positive power, and a fourth lens unit having positive power. During zooming from a wide-angle end to a telephoto end, the second lens unit is moved toward the image side, the third lens unit is moved toward the object side, and the fourth lens unit is moved such that an air space between the fourth lens unit and the third lens unit is changed. The camera of the present invention includes a photo-taking optical system, and the finder of the present invention whose optical axis is different from an optical axis of the photo-taking optical system.

摘要翻译： 公开了一种具有出色的光学性能的小型取景器和包括取景器的照相机。 本发明的取景器包括物镜光学系统和目镜光学系统。 物镜光学系统包括从物体侧到像侧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和具有正光焦度的第四透镜单元。 在从广角端到望远端的变焦期间，第二透镜单元朝向图像侧移动，第三透镜​​单元朝向物体侧移动，并且第四透镜单元移动，使得第四透镜单元在第四透镜单元之间的空间 透镜单元和第三透镜单元被改变。 本发明的照相机包括光摄取光学系统和本发明的光轴与摄像光学系统的光轴不同的取景器。

公开(公告)号：US06429978B2

公开(公告)日：2002-08-06

申请号：US09777958

申请日：2001-02-07

申请人： Akihiro Nishio

发明人： Akihiro Nishio

IPC分类号： G02B1514

CPC分类号： G02B15/177

摘要： A zoom lens disclosed herein, having excellent optical performance within a full zoom range, is appropriate for use as a photographing lens for a lens-shutter camera, a video camera, and a digital still camera. The zoom lens includes at least four lens units from the object side, i.e., a first lens unit of negative refractive power, a second lens unit of positive refractive power, a third lens unit of positive refractive power, and a fourth lens unit of negative refractive power. A zooming operation is performed by axially moving the lens units so that the spacing between the first lens unit and the second lens unit becomes wider at the telephoto end than at the wide-angle end, the spacing between the second lens unit and the third lens unit becomes wider at the telephoto end than at the wide-angle end, and the spacing between the third lens unit and the fourth lens unit becomes narrower at the telephoto end than at the wide-angle end. With the focal lengths of respective lens unit set to satisfy a predetermined condition, a compact and high image-quality zoom lens thus results.

摘要翻译： 本文公开的具有在完全变焦范围内的良好光学性能的变焦镜头适用于用于镜头快门摄像机，摄像机和数字静态照相机的拍摄镜头。 变焦透镜包括来自物体侧的至少四个透镜单元，即负折光力的第一透镜单元，正屈光力的第二透镜单元，正折光力的第三透镜单元和负折射光焦度的第四透镜单元 屈光力。 通过轴向移动透镜单元来执行变焦操作，使得第一透镜单元和第二透镜单元之间的间隔在远摄端处比在广角端处变宽，第二透镜单元和第三透镜之间的间隔 在远摄端处的单元在广角端处变宽，第三透镜​​单元与第四透镜单元之间的间隔在远摄端比在广角端处变窄。 由于各个透镜单元的焦距被设定为满足预定条件，因此产生了紧凑且高质量的变焦镜头。

公开(公告)号：US5523888A

公开(公告)日：1996-06-04

申请号：US297833

申请日：1994-08-30

申请人： Akihiro Nishio

发明人： Akihiro Nishio

IPC分类号： G02B15/177 ,  G02B15/14

CPC分类号： G02B15/177

摘要： A zoom lens comprising, from front to rear, a first lens unit of negative refractive power, a second lens unit of positive refractive power, a third lens unit of positive refractive power and a fourth lens unit of negative refractive power, zooming being performed by varying each separation between the first to fourth lens units in such a manner that, as compared with the wide-angle end, when in the telephoto end, the separations between the first and second lens units and between the third and fourth lens units are shorter and the separation between the second and third lens units is longer, satisfying the following conditions:D1w-D1t

摘要翻译： 一种变焦透镜，包括从前到后具有负屈光力的第一透镜单元，正屈光力的第二透镜单元，正屈光力的第三透镜单元和负折光力的第四透镜单元，变焦由 改变第一至第四透镜单元之间的每个间隔，使得与广角端相比，当在长焦端时，第一和第二透镜单元之间以及第三和第四透镜单元之间的间隔较短 并且第二和第三透镜单元之间的间隔较长，满足以下条件：D1w-D1t

公开(公告)号：US5132848A

公开(公告)日：1992-07-21

申请号：US781579

申请日：1991-10-23

申请人： Akihiro Nishio ,  Makoto Sekita

发明人： Akihiro Nishio ,  Makoto Sekita

IPC分类号： G02B15/20 ,  G02B15/177

CPC分类号： G02B15/177

摘要： A wideangle zoom lens has four lens groups including a first lens group having a negative refractive power, a second group having a positive refractive power, a third lens group having a negative refractive power and a fourth lens group having a positive refractive power. The first to fourth lens groups being arranged object side in that order. The zooming operation from a wideangle end to a telephoto end is performed by increasing the distance between the second and third lens groups while reducing the distance betwen the third and fourth lens groups. Zooming is performed by non-linearly moving the first lens group. The first to fourth lens groups are arranged to meet the following conditions:3.0

摘要翻译： 广角变焦透镜具有四个透镜组，包括具有负折光力的第一透镜组，具有正折光力的第二组，具有负折光力的第三透镜组和具有正折光力的第四透镜组。 第一至第四透镜组按照该顺序布置在物体侧。 通过在减小第三和第四透镜组之间的距离的同时增加第二和第三透镜组之间的距离来执行从广角端到望远端的变焦操作。 通过非线性移动第一透镜组来进行变焦。 第一至第四透镜组被设置为满足以下条件：3.0