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11. 发明授权

US06968128B2 Zoom lens and camera having the same 有权
标题翻译：变焦镜头和相机具有相同的功能
公开(公告)号：US06968128B2
公开(公告)日：2005-11-22
申请号：US10161832
申请日：2002-06-04
申请人： Yoshinori Itoh
发明人： Yoshinori Itoh
IPC分类号： G02B15/16 , G02B13/18 , G02B13/22 , G02B15/177 , G02B15/20 , G03B5/00 , G02B15/14
CPC分类号： G02B15/177
摘要： A zoom lens includes in order from the object side to the image side, a first lens unit of negative optical power and a second lens unit of positive optical power. Zooming is effected by varying the interval between the first lens unit and the second lens unit. The second lens unit has, in order from the object side to the image side, an aspherical positive lens and an aspherical negative lens.
摘要翻译：变焦透镜从物体侧到像侧依次包括负光焦度的第一透镜单元和正光焦度的第二透镜单元。通过改变第一透镜单元和第二透镜单元之间的间隔来实现变焦。第二透镜单元从物体侧到像侧依次具有非球面正透镜和非球面负透镜。

12. 发明申请

US20050036211A1 Zoom lens system and image pickup apparatus having zoom lens system 失效
标题翻译：具有变焦透镜系统的变焦透镜系统和摄像装置
公开(公告)号：US20050036211A1
公开(公告)日：2005-02-17
申请号：US10916335
申请日：2004-08-11
申请人： Yoshinori Itoh
发明人： Yoshinori Itoh
IPC分类号： G02B15/20 , G02B13/16 , G02B13/18 , G02B15/163 , G02B15/177 , G03B17/12 , H04N5/225 , G02B15/14
CPC分类号： G02B15/177 , G02B13/16
摘要： Provided is a zoom lens system, including a first lens unit having negative refracting power, a second lens unit having positive refracting power, and a third lens unit having positive refracting power, which are disposed in order from an object side to an image side. The second lens unit is moved to the object side in zooming from a wide angle end to a telephoto end such that an interval between the first lens unit and the second lens unit at the telephoto end becomes smaller than an interval between the first lens unit and the second lens unit at the wide angle end. The first lens unit includes a first lens element having negative refracting power, a second lens element having negative refracting power, and a third lens element having positive refracting power, which are disposed in order from the object side to the image side. The first lens element has an aspherical surface of a shape that the negative refracting power decreases from a lens central portion to a lens peripheral portion. The second lens unit is formed in a meniscus shape which is convex on the object side. A refractive index of a material constituting the first lens element and a refractive index of a material constituting the second lens element are appropriately set.
摘要翻译：提供了一种变焦透镜系统，其包括具有负折射力的第一透镜单元，具有正折射率的第二透镜单元和具有正折射率的第三透镜单元，其从物体侧到像侧依次布置。第二透镜单元从广角端向望远端变焦到物体侧，使得第一透镜单元与第二透镜单元在望远端的间隔变得小于第一透镜单元和第二透镜单元之间的间隔第二透镜单元处于广角端。第一透镜单元包括具有负折射力的第一透镜元件，具有负折射率的第二透镜元件和具有正折射率的第三透镜元件，其从物体侧到像侧依次布置。第一透镜元件具有从透镜中心部分到透镜周边部分的负折射力减小的形状的非球面。第二透镜单元形成为在物体侧凸起的弯液面形状。适当地设定构成第一透镜元件的材料的折射率和构成第二透镜元件的材料的折射率。

13. 发明授权

US06327099B1 Zoom lens and optical device having the same 有权
标题翻译：具有相同的变焦镜头和光学装置
公开(公告)号：US06327099B1
公开(公告)日：2001-12-04
申请号：US09524572
申请日：2000-03-13
申请人： Yoshinori Itoh
发明人： Yoshinori Itoh
IPC分类号： G02B1514
CPC分类号： G02B15/177
摘要： A zoom lens is enabled to favorably correct aberrations even when a vibration-proofing operation is performed, despite high magnification thereof. This zoom lens includes, in order from an object side, 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. When performing zooming from a wide-angle end of this zoom lens to a telephoto end thereof, both of the spacing between the first and second lens units increases, and the spacing between the second and third lens units increase, while the spacing between the third and fourth lens units decreases. Further, an image of an object is displaced by moving the first lens unit or a part of the second lens unit in such a manner as to have a component perpendicular to an optical axis. Thus, an image blur is corrected when the zoom lens vibrates.
摘要翻译：即使进行了防振操作，变焦镜头也能够有利地校正像差，尽管其高倍率。该变焦透镜从物体侧依次包括负折光力的第一透镜单元，正折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。当从该变焦透镜的广角端到其远摄端进行变焦时，第一和第二透镜单元之间的间隔都增加，并且第二和第三透镜单元之间的间隔增加，而第三透镜单元之间的间隔第四透镜单元减少。此外，通过使第一透镜单元或第二透镜单元的一部分以垂直于光轴的分量的方式移动物体的图像。因此，当变焦镜头振动时，校正图像模糊。

14. 发明授权

US5687027A Zoom lens for optical apparatus such as camera 失效
标题翻译：适用于相机等光学设备的变焦镜头
公开(公告)号：US5687027A
公开(公告)日：1997-11-11
申请号：US607640
申请日：1996-02-27
申请人： Yoshinori Itoh
发明人： Yoshinori Itoh
IPC分类号： G02B13/18 , G02B15/16 , G02B15/14
CPC分类号： G02B15/161
摘要： To attain a compact wide-angle 2-unit zoom lens having a variable magnification range of 2.6 to 2.9 or thereabout which is well corrected for high optical performance throughout the entire variable magnification range with the total length shortened, the zoom lens comprises, in order from the object side, a first lens unit of positive refractive power and a second lens unit of negative refractive power, the separation between both the first and second lens units being varied to vary magnification, wherein an aspheric surface layer is formed on a lens surface of the object side among the lenses made of glass in the second lens unit by coating that lens surface with transparent resin and then setting the transparent resin.
摘要翻译：为了获得具有可变倍率范围为2.6至2.9的紧凑型广角2单位变焦镜头，或者在全长缩短的整个可变倍率范围内对于高光学性能进行良好校正的紧凑型广角2单位变焦镜头，变焦镜头按顺序包括从物体侧开始具有正折光力的第一透镜单元和具有负折光力的第二透镜单元，第一透镜单元和第二透镜单元之间的间隔被改变以改变放大率，其中非球面表面层形成在透镜表面上通过用透明树脂涂覆该透镜表面，然后设置透明树脂，在第二透镜单元中由玻璃制成的透镜中的物体侧。

15. 发明授权

US5585971A Small-sized variable magnification lens 失效
标题翻译：小型可变放大镜
公开(公告)号：US5585971A
公开(公告)日：1996-12-17
申请号：US210444
申请日：1994-03-21
申请人： Yoshinori Itoh
发明人： Yoshinori Itoh
IPC分类号： G02B13/18 , G02B15/16 , G02B15/14
CPC分类号： G02B15/161
摘要： A zoom lens is disclosed, comprising, from front to rear, a first lens unit having a positive refractive power and a second lens unit having a negative refractive power, an air separation between the first and second lens units being varied to vary the focal length, wherein the first lens unit comprises, from front to rear, a front lens unit having a negative refractive power, a stop and a rear lens unit having a positive refractive power, satisfying the following condition:0.053
摘要翻译：公开了一种变焦透镜，包括从前到后的具有正折光力的第一透镜单元和具有负屈光力的第二透镜单元，第一和第二透镜单元之间的空气间隔被改变以改变焦距其特征在于，所述第一透镜单元从前方向后方包括具有负屈光力的前透镜单元，具有正屈光力的挡片和后透镜单元，满足以下条件：0.053

16. 发明授权

US5342252A Toothed belt 失效
标题翻译：齿形带
公开(公告)号：US5342252A
公开(公告)日：1994-08-30
申请号：US132387
申请日：1993-10-06
申请人： Toru Fujiwara , Yoshinori Itoh
发明人： Toru Fujiwara , Yoshinori Itoh
IPC分类号： F16G1/28 , F16G1/10
CPC分类号： F16G1/28
摘要： Resistance to tooth chipping in toothed belt in which rubber teeth are covered by a tooth cloth, is improved by providing for residual elongation of the tooth cloth so that it does not float or separate from the rubber teeth when tooth-deforming forces are applied, and by providing the tooth cloth with sufficient breaking strength so that the product of its breaking strength and its elongation are at least equal to a specified value.
摘要翻译：通过提供齿布的残余伸长率使得在施加齿变形力时不与橡胶齿悬浮或分离的齿形带中的抗齿性的橡胶齿被齿布覆盖，并且通过使齿布具有足够的断裂强度，使得其断裂强度和伸长率的乘积至少等于规定值。

17. 发明授权

US07561344B2 Zoom lens system and image pickup apparatus including the same 失效
标题翻译：变焦透镜系统和包括其的摄像装置
公开(公告)号：US07561344B2
公开(公告)日：2009-07-14
申请号：US12138173
申请日：2008-06-12
申请人： Yoshinori Itoh
发明人： Yoshinori Itoh
IPC分类号： G02B15/14
CPC分类号： G02B15/173
摘要： A simple, compact, high-zoom-ratio zoom lens system exhibiting high optical performance at all zoom positions is provided. The system includes, in order from the object side to the image side, first to fourth lens groups having positive, negative, positive, and positive refractive powers, respectively. The first-to-second-lens-group distance becomes the smallest during zooming. The first lens group resides closer to the object at a telephoto end than at a wide-angle end. The lens groups move such that the second-to-third-lens-group distance is smaller and the third-to-fourth-lens-group distance is larger at the telephoto end than at the wide-angle end. The second lens group includes, in order from the object side to the image side, negative and positive lens elements. First-to-second-lens-group distances d1w and d1t at the wide-angle end and at the telephoto end, respectively, and the smallest first-to-second-lens-group distance d1min obtained during zooming are appropriately set.
摘要翻译：提供了一种在所有变焦位置呈现高光学性能的简单，紧凑，高变焦倍率的变焦透镜系统。该系统从物体侧到像侧依次包括分别具有正，正，正正屈光力的第一至第四透镜组。变焦时第一至第二镜头组距离变得最小。第一透镜组在远摄端比在广角端靠近物体。透镜组移动，使得第二至第三透镜组距离较小，并且在远摄端处的第三至第四透镜组距离比在广角端处较大。第二透镜组从物体侧到像侧依次包括负透镜和正透镜元件。分别在广角端和望远端处的第一到第二透镜组距离d1w和d1t以及在变焦期间获得的最小的第一到第二透镜组距离d1min被适当地设定。

18. 发明申请

US20080310032A1 ZOOM LENS SYSTEM AND IMAGE PICKUP APPARATUS INCLUDING THE SAME 失效
标题翻译：变焦镜头系统和图像拾取装置，包括它们
公开(公告)号：US20080310032A1
公开(公告)日：2008-12-18
申请号：US12138173
申请日：2008-06-12
申请人： Yoshinori Itoh
发明人： Yoshinori Itoh
IPC分类号： G02B15/16
CPC分类号： G02B15/173
摘要： A simple, compact, high-zoom-ratio zoom lens system exhibiting high optical performance at all zoom positions is provided. The system includes, in order from the object side to the image side, first to fourth lens groups having positive, negative, positive, and positive refractive powers, respectively. The first-to-second-lens-group distance becomes the smallest during zooming. The first lens group resides closer to the object at a telephoto end than at a wide-angle end. The lens groups move such that the second-to-third-lens-group distance is smaller and the third-to-fourth-lens-group distance is larger at the telephoto end than at the wide-angle end. The second lens group includes, in order from the object side to the image side, negative and positive lens elements. First-to-second-lens-group distances d1w and d1t at the wide-angle end and at the telephoto end, respectively, and the smallest first-to-second-lens-group distance d1min obtained during zooming are appropriately set.
摘要翻译：提供了一种在所有变焦位置呈现高光学性能的简单，紧凑，高变焦倍率的变焦透镜系统。该系统从物体侧到像侧依次包括分别具有正，正，正正屈光力的第一至第四透镜组。变焦时第一至第二镜头组距离变得最小。第一透镜组在远摄端比在广角端靠近物体。透镜组移动，使得第二至第三透镜组距离较小，并且在远摄端处的第三至第四透镜组距离比在广角端处较大。第二透镜组从物体侧到像侧依次包括负透镜和正透镜元件。分别在广角端和望远端处的第一到第二透镜组距离d1w和d1t以及在变焦期间获得的最小的第一到第二透镜组距离d1min被适当地设定。

19. 发明授权

US07061685B2 Zoom lens system 有权
标题翻译：变焦镜头系统
公开(公告)号：US07061685B2
公开(公告)日：2006-06-13
申请号：US10968963
申请日：2004-10-21
申请人： Yoshinori Itoh
发明人： Yoshinori Itoh
IPC分类号： G02B15/14
CPC分类号： G02B15/177
摘要： Provided is a zoom lens system suitably used for, for example, an image taking optical system of a camera including a solid-state image pickup element. The zoom lens system includes a first lens unit having negative optical power, a second lens unit having positive optical power, and a third lens unit having positive optical power. During zooming, an interval between the first lens unit and the second lens unit and an interval between the second lens unit and the third lens unit are changed. The first lens unit consists of a first lens element having negative optical power and a second lens element having positive optical power. The first lens element has an aspherical surface. The first lens element is made of a material having a high refractive index.
摘要翻译：提供了适用于例如包括固态图像拾取元件的照相机的摄像光学系统的变焦透镜系统。变焦透镜系统包括具有负光焦度的第一透镜单元，具有正光焦度的第二透镜单元和具有正光焦度的第三透镜单元。在变焦期间，改变第一透镜单元和第二透镜单元之间的间隔以及第二透镜单元和第三透镜单元之间的间隔。第一透镜单元由具有负光焦度的第一透镜元件和具有正光焦度的第二透镜元件组成。第一透镜元件具有非球面。第一透镜元件由具有高折射率的材料制成。

20. 发明申请

US20050141101A1 Zoom lens system 有权
标题翻译：变焦镜头系统
公开(公告)号：US20050141101A1
公开(公告)日：2005-06-30
申请号：US10968963
申请日：2004-10-21
申请人： Yoshinori Itoh
发明人： Yoshinori Itoh
IPC分类号： G02B15/20 , G02B13/18 , G02B15/177 , G02B15/14
CPC分类号： G02B15/177
摘要： Provided is a zoom lens system suitably used for, for example, an image taking optical system of a camera including a solid-state image pickup element. The zoom lens system includes a first lens unit having negative optical power, a second lens unit having positive optical power, and a third lens unit having positive optical power. During zooming, an interval between the first lens unit and the second lens unit and an interval between the second lens unit and the third lens unit are changed. The first lens unit consists of a first lens element having negative optical power and a second lens element having positive optical power. The first lens element has an aspherical surface. The first lens element is made of a material having a high refractive index.
摘要翻译：提供了适用于例如包括固态图像拾取元件的照相机的摄像光学系统的变焦透镜系统。变焦透镜系统包括具有负光焦度的第一透镜单元，具有正光焦度的第二透镜单元和具有正光焦度的第三透镜单元。在变焦期间，改变第一透镜单元和第二透镜单元之间的间隔以及第二透镜单元和第三透镜单元之间的间隔。第一透镜单元由具有负光焦度的第一透镜元件和具有正光焦度的第二透镜元件组成。第一透镜元件具有非球面。第一透镜元件由具有高折射率的材料制成。

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