公开(公告)号：US06333823B1

公开(公告)日：2001-12-25

申请号：US09466919

申请日：1999-12-20

申请人： Hiroyasu Ozaki ,  Takayuki Ito

发明人： Hiroyasu Ozaki ,  Takayuki Ito

IPC分类号： G02B1514

CPC分类号： G02B15/173 ,  Y10S707/99945 ,  Y10S707/99948

摘要： A zoom lens system includes a plurality of lens groups, wherein a deflector which deflects the optical axis of said zoom lens system is positioned between lens groups which are made moveable upon zooming.

摘要翻译： 变焦透镜系统包括多个透镜组，其中使所述变焦透镜系统的光轴偏转的偏转器位于可变焦时可移动的透镜组之间。

公开(公告)号：US06314246B1

公开(公告)日：2001-11-06

申请号：US09475659

申请日：1999-12-30

申请人： Hiroyasu Ozaki ,  Takayuki Ito

发明人： Hiroyasu Ozaki ,  Takayuki Ito

IPC分类号： G03B1302

CPC分类号： C03C3/00 ,  G03B19/12

摘要： A viewfinder optical system of a single-lens reflex camera has a photographic optical system and an image plane positioned on an optical axis of the photographic optical system. The system includes a first optical member positioned between the photographic optical system and the image plane, the first optical member bending the optical axis of the photographic optical system to define a viewfinder optical axis of the viewfinder optical system. A second optical member bends the viewfinder optical axis at least once to make the viewfinder optical axis that extends parallel to the optical axis of the photographic optical system. A third optical member, having substantially no optical power, is positioned on the viewfinder optical axis extending parallel to the optical axis of the photographic optical system. The third optical member is made of a transparent material having a refractive index higher than the refractive index of air. An eyepiece is positioned behind the third optical member on the viewfinder optical axis.

摘要翻译： 单镜反光相机的取景器光学系统具有照相光学系统和位于摄影光学系统的光轴上的图像平面。 该系统包括位于摄影光学系统和图像平面之间的第一光学构件，第一光学构件弯曲摄影光学系统的光轴以限定取景器光学系统的取景器光轴。 第二光学构件将取景器光轴弯曲至少一次以使得取景器光轴平行于照相光学系统的光轴延伸。 具有基本上没有光焦度的第三光学构件被定位在平行于照相光学系统的光轴延伸的取景器光轴上。 第三光学构件由折射率高于空气的折射率的透明材料制成。 目镜位于取景器光轴上的第三光学构件后面。

公开(公告)号：US06268964B1

公开(公告)日：2001-07-31

申请号：US09339296

申请日：1999-06-24

申请人： Hiroyasu Ozaki ,  Takayuki Ito

发明人： Hiroyasu Ozaki ,  Takayuki Ito

IPC分类号： G02B1514

CPC分类号： G02B15/177 ,  G02B15/14

摘要： A step zoom lens includes a first movable lens group of negative power, a diaphragm which is immovable during zooming, and a second lens group of positive power. A fundamental zooming path along which the first lens group is moved to vary a focal length without causing an image shift is defined so that the distance of the first lens group from the diaphragm is reduced and is thereafter increased, upon zooming from a wide angle extremity to a telephoto extremity, and a fundamental zooming path along which the second lens group is moved is defined so that the distance of the second lens group from the diaphragm is linearly varied. The discrete stop positions of the first and second lens groups are determined to be different from a focal length position at which the distance between the first lens group and the diaphragm on the fundamental zooming path thereof is minimum or the vicinity thereof.

摘要翻译： 步进变焦透镜包括负功率的第一可移动透镜组，在变焦期间不可移动的光阑和正功率的第二透镜组。 定义第一透镜组移动以改变焦距而不引起图像偏移的基本变焦路径，使得第一透镜组与光阑的距离减小，然后在从广角端变焦时增加 到远摄端，并且限定第二透镜组移动的基本变焦路径，使得第二透镜组与光阑的距离线性地变化。 第一透镜组和第二透镜组的离散停止位置被确定为不同于第一透镜组和其基本变焦路径上的光阑之间的距离最小的焦距位置或其附近。

公开(公告)号：US5889619A

公开(公告)日：1999-03-30

申请号：US786899

申请日：1997-01-23

申请人： Hiroyasu Ozaki ,  Takayuki Ito

发明人： Hiroyasu Ozaki ,  Takayuki Ito

IPC分类号： G02B15/167 ,  G02B15/16 ,  G02B15/17 ,  G02B15/14

CPC分类号： G02B15/17

摘要： There are arranged, in order from the object side, a first lens group having positive refractive power, a second lens group having negative refractive power, a third lens group having negative refractive power, and a fourth lens group having positive refractive power, the first and fourth lens groups being fixed whereas the second and third lens groups are moved in the axial direction to effect zooming. Further, the following conditions (1), (2) and (3) are satisfied:(1) 1.2

摘要翻译： 从物体依次排列具有正折光力的第一透镜组，具有负折光力的第二透镜组，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，第一透镜组 并且第四透镜组被固定，而第二和第三透镜组沿轴向移动以实现变焦。 此外，满足以下条件（1），（2）和（3）：（1）1.2

公开(公告)号：US06397009B1

公开(公告)日：2002-05-28

申请号：US09589062

申请日：2000-06-08

申请人： Takayuki Ito ,  Hiroyasu Ozaki ,  Takuji Hamasaki

发明人： Takayuki Ito ,  Hiroyasu Ozaki ,  Takuji Hamasaki

IPC分类号： G03B1700

CPC分类号： G02B7/10

摘要： A zoom lens system includes at least three lens groups, in which the distance between at least two lens groups of the at least three lens groups is varied during zooming, the zoom lens system having a first adjustment mechanism for mechanically adjusting a first lens group in the optical axis direction upon assembly and adjustment; a second adjustment mechanism for mechanically adjusting a second lens group, which is different from the first lens group, in the optical axis direction upon assembly and adjustment; and a third adjustment mechanism for mechanically adjusting a third lens group, which is different from the first and second lens group, in the optical axis direction upon assembly and adjustment.

摘要翻译： 变焦透镜系统包括至少三个透镜组，其中至少三个透镜组中的至少两个透镜组之间的距离在变焦期间变化，变焦透镜系统具有用于机械地调节第一透镜组的第一调整机构 装配调整时的光轴方向; 用于在组装和调整时在光轴方向上机械地调节与第一透镜组不同的第二透镜组的第二调节机构; 以及用于在组装和调整时在光轴方向上机械地调节与第一和第二透镜组不同的第三透镜组的第三调节机构。

公开(公告)号：US06169635A

公开(公告)日：2001-01-02

申请号：US09244076

申请日：1999-02-04

申请人： Hiroyasu Ozaki ,  Takayuki Ito

发明人： Hiroyasu Ozaki ,  Takayuki Ito

IPC分类号： G02B1514

CPC分类号： G02B13/22 ,  G02B15/177

摘要： A zoom lens system includes a negative first lens group, an aperture stop, and a positive second lens group, arranged in this order from an object side. The first and second lens groups are movable along an optical axis for zooming, while the aperture stop, which is disposed between the lens groups, stays unmoved during zooming. The zoom lens system satisfies conditions (1), (2) and (3): 0.7

摘要翻译： 变焦透镜系统包括从物体侧依次排列的负第一透镜组，孔径光阑和正第二透镜组。 第一和第二透镜组可沿着光轴移动以进行变焦，而设置在透镜组之间的孔径光阑在变焦期间保持不移动。 变焦透镜系统满足条件（1），（2）和（3）：其中，fi是整个系统的总长度最短时的整个系统的焦距，fw是整个系统的最短焦距， ft是整个系统的最长焦距，当总长度最短时，di是第一透镜组和孔径光阑之间的气隙，f2是第二透镜组的焦距。

公开(公告)号：US5910860A

公开(公告)日：1999-06-08

申请号：US6896

申请日：1998-01-14

申请人： Hiroyasu Ozaki ,  Takayuki Ito

发明人： Hiroyasu Ozaki ,  Takayuki Ito

IPC分类号： G02B13/00 ,  G02B15/16 ,  G02B15/177 ,  G02B13/18

CPC分类号： G02B15/177

摘要： A zoom lens includes a first movable lens group having negative power and a second movable lens group having positive power, and an immovable diaphragm provided between the first and second lens groups so as not to move during the zooming operation. The zoom lens satisfies (1) 0.45 0), and D.sub.w represents the distance between the diaphragm and the first principal point of the second lens group at the wide-angle extremity.

摘要翻译： 变焦透镜包括具有负功率的第一可移动透镜组和具有正光焦度的第二可移动透镜组，以及设置在第一和第二透镜组之间以便在变焦操作期间不移动的不可移动光阑。 变焦透镜满足（1）0.45 0）的焦距，Dw表示光阑与 第二透镜组在广角端的第一要点。

公开(公告)号：US5912771A

公开(公告)日：1999-06-15

申请号：US935894

申请日：1997-09-23

申请人： Hiroyasu Ozaki ,  Takayuki Ito

发明人： Hiroyasu Ozaki ,  Takayuki Ito

IPC分类号： G02B15/16 ,  G02B15/173 ,  G02B15/14

CPC分类号： G02B15/173

摘要： A zoom lens system includes a positive first lens group, a negative second lens group, and a positive third lens group. The second and third lens groups move to perform a zooming operation. The zoom lens system satisfies the relationships 0

摘要翻译： 变焦透镜系统包括正的第一透镜组，负的第二透镜组和正的第三透镜组。 第二和第三透镜组移动以执行缩放操作。 变焦透镜系统满足关系0

公开(公告)号：US06778329B2

公开(公告)日：2004-08-17

申请号：US10431465

申请日：2003-05-08

申请人： Hiroyasu Ozaki

发明人： Hiroyasu Ozaki

IPC分类号： G02B1514

CPC分类号： G02B15/173

摘要： A zoom lens system includes a positive first lens group, a negative second lens group, and a positive third lens group, in this order from the object. Upon zooming from the short focal length extremity to the long focal length extremity, the positive first lens group remains stationary, the negative second lens group moves toward the image, and the positive third lens group moves toward the object. The positive first lens group includes a first sub-lens group which is stationary and a second sub-lens group which functions as a focusing lens group.

摘要翻译： 变焦透镜系统包括正的第一透镜组，负的第二透镜组和正的第三透镜组。 当从短焦距端子变焦到长焦距端极时，正的第一透镜组保持静止，负的第二透镜组朝向图像移动，并且正的第三透镜组向着物体移动。 正的第一透镜组包括固定的第一子透镜组和用作聚焦透镜组的第二子透镜组。

公开(公告)号：US6052235A

公开(公告)日：2000-04-18

申请号：US954901

申请日：1997-10-21

申请人： Hiroyasu Ozaki

发明人： Hiroyasu Ozaki

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

CPC分类号： G02B15/173

摘要： A telephoto zoom lens includes a first positive lens group, a second negative lens group, a third positive lens group and a fourth lens group. A resultant refractive power of the third and fourth lens groups are moved from an image side to an object side upon zooming from a short focal length extremity to a long focal length extremity, so that 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 becomes smallest at an intermediate focal length. The zoom lens satisfies a condition specified by (0.1

摘要翻译： 长焦变焦镜头包括第一正透镜组，第二负透镜组，第三正透镜组和第四透镜组。 第三透镜组和第四透镜组的折射光焦度在从短焦距末端变焦到长焦距末端时从图像侧移动到物体侧，使得第一透镜组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在中间焦距处变得最小。 变焦透镜满足由（0.1