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1. 发明授权

US06208471B1 Zoom lens system 失效
标题翻译：变焦镜头系统
公开(公告)号：US06208471B1
公开(公告)日：2001-03-27
申请号：US09274650
申请日：1999-03-23
申请人： Takashi Enomoto , Takayuki Ito , Shuji Yoneyama
发明人： Takashi Enomoto , Takayuki Ito , Shuji Yoneyama
IPC分类号： G02B1514
CPC分类号： G02B15/161
摘要： A zoom lens system having a positive first lens group and a negative second lens group in this order from the object side, wherein zooming is performed by varying the distance between the first and the second lens groups. The zoom lens system satisfies the following conditions (1) and (2): 1.4
摘要翻译：从物体侧依次具有正的第一透镜组和负的第二透镜组的变焦透镜系统，其中通过改变第一和第二透镜组之间的距离来执行变焦。变焦透镜系统满足以下条件（1）和（2）：其中：fw表示变焦透镜系统在短焦距端的焦距; f1G表示正的第一透镜组的焦距; SIGMAd1G表示正的第一透镜组的厚度。

2. 发明授权

US5701205A Shiftable lens system 失效
标题翻译：可换镜头系统
公开(公告)号：US5701205A
公开(公告)日：1997-12-23
申请号：US414126
申请日：1995-03-30
申请人： Sachio Hasushita , Shuji Yoneyama , Koichi Maruyama , Takayuki Ito
发明人： Sachio Hasushita , Shuji Yoneyama , Koichi Maruyama , Takayuki Ito
IPC分类号： G02B13/00 , G02B15/04 , G02B27/64 , G03B5/00 , G02B15/14
CPC分类号： G02B15/04 , G02B13/00 , G02B27/646 , G03B5/00 , G03B2227/325
摘要： A shiftable lens system having front and rear lens groups, wherein a part or the whole of the rear lens group is shiftable in a direction perpendicular to the principal optical axis thereof.
摘要翻译：一种具有前透镜组和后透镜组的可移动透镜系统，其中后透镜组的一部分或全部可在垂直于其主光轴的方向上移动。

3. 再颁专利

USRE36326E Zoom lens system 失效
标题翻译：变焦镜头系统
公开(公告)号：USRE36326E
公开(公告)日：1999-10-05
申请号：US584309
申请日：1996-01-11
申请人： Takayuki Ito , Sachio Hasushita , Shuji Yoneyama
发明人： Takayuki Ito , Sachio Hasushita , Shuji Yoneyama
IPC分类号： G02B13/18 , G02B15/16 , G02B15/14
CPC分类号： G02B15/161 , G02B15/16
摘要： A zoom lens system for a compact camera, having a zoom ratio of approximately 2 or 3 and a smaller overall lens length at the telephoto end than the focal distance at the telephoto end, and which optically experiences only a small focus shift due to environmental changes such as temperature or humidity. The zoom lens system includes a positive lens group and a negative lens group. A positive plastic lens element is disposed in either the positive lens group or the negative lens group. The magnification of the system is adjusted by varying .�.the.!. .Iadd.a .Iaddend.distance between the positive and negative lens groups. The zoom lens system satisfies the following conditions:0.9
摘要翻译：一种用于小型照相机的变焦透镜系统，具有大约2或3的变焦倍率和在远摄端处的总透镜长度比在远摄端处的焦距更小，并且由于环境变化而仅光学地经历小的焦点偏移如温度或湿度。变焦透镜系统包括正透镜组和负透镜组。正塑料透镜元件设置在正透镜组或负透镜组中。通过改变正透镜组和负透镜组之间的距离来调整系统的放大倍率。变焦透镜系统满足以下条件：0.9

4. 发明授权

US5424871A Zoom lens system 失效
标题翻译：变焦镜头系统
公开(公告)号：US5424871A
公开(公告)日：1995-06-13
申请号：US138047
申请日：1993-10-19
申请人： Takayuki Ito , Sachio Hasushita , Shuji Yoneyama
发明人： Takayuki Ito , Sachio Hasushita , Shuji Yoneyama
IPC分类号： G02B13/18 , G02B15/16 , G02B15/14
CPC分类号： G02B15/161 , G02B15/16
摘要： A zoom lens system for a compact camera, having a zoom ratio of approximately 2 or 3 and a smaller overall lens length at the telephoto end than the focal distance at the telephoto end, and which optically experiences only a small focus shift due to environmental changes such as temperature or humidity. The zoom lens system includes a positive lens group and a negative lens group. A positive plastic lens element is disposed in either the positive lens group or the negative lens group. The magnification of the system is adjusted by varying the distance between the positive and negative lens groups. The zoom lens system satisfies the following conditions:0.9
摘要翻译：一种用于小型照相机的变焦透镜系统，具有大约2或3的变焦倍率和在远摄端处的总透镜长度比在远摄端处的焦距更小，并且由于环境变化而仅光学地经历小的焦点偏移如温度或湿度。变焦透镜系统包括正透镜组和负透镜组。正塑料透镜元件设置在正透镜组或负透镜组中。通过改变正和负透镜组之间的距离来调节系统的放大倍率。变焦透镜系统满足以下条件：0.9

5. 发明授权

US5278699A Zoom lens system 失效
标题翻译：变焦镜头系统
公开(公告)号：US5278699A
公开(公告)日：1994-01-11
申请号：US907796
申请日：1992-07-02
申请人： Takayuki Ito , Sachio Hasushita , Shuji Yoneyama
发明人： Takayuki Ito , Sachio Hasushita , Shuji Yoneyama
IPC分类号： G02B13/18 , G02B15/16 , G02B15/14
CPC分类号： G02B15/161 , G02B15/16
摘要： A zoom lens system for a compact camera, having a zoom ratio of approximately 2 or 3 and a smaller overall lens length at the telephoto end than the focal distance at the telephoto end, and which optically experiences only a small focus shift due to environmental changes such as temperature or humidity. The zoom lens system includes a positive lens group and a negative lens group. A positive plastic lens element is disposed in either the positive lens group or the negative lens group. The magnification of the system is adjusted by varying the distance between the positive and negative lens groups. The zoom lens system satisfies the following conditions:0.9
摘要翻译：一种用于小型照相机的变焦透镜系统，具有大约2或3的变焦倍率和在远摄端处的总透镜长度比在远摄端处的焦距更小，并且由于环境变化而仅光学地经历小的焦点偏移如温度或湿度。变焦透镜系统包括正透镜组和负透镜组。正塑料透镜元件设置在正透镜组或负透镜组中。通过改变正和负透镜组之间的距离来调节系统的放大倍率。变焦透镜系统满足以下条件：0.9

6. 发明授权

US5793533A Zoom lens system 失效
标题翻译：变焦镜头系统
公开(公告)号：US5793533A
公开(公告)日：1998-08-11
申请号：US136255
申请日：1993-10-15
申请人： Shuji Yoneyama , Takayuki Ito
发明人： Shuji Yoneyama , Takayuki Ito
IPC分类号： G02B15/163 , G02B15/14
CPC分类号： G02B15/163
摘要： The improved zoom lens system comprises, in order from the object side, a positive first lens group, a positive second lens group and a negative third lens group, the third lens group having a biaspheric positive lens element on the side the closest to the object that has a convex surface directed towards the image and the third lens group further including at least one negative lens element that has a concave surface directed towards the object, and the system is further characterized in that all lens groups are moved towards the object during a zoom from the wide-angle end to the narrow-angle end, and the following conditions are satisfied: (a) 0
摘要翻译：改进的变焦透镜系统从物体侧依次包括正的第一透镜组，正的第二透镜组和负的第三透镜组，第三透镜组在最靠近对象的一侧具有偏置正透镜元件其具有朝向图像的凸表面，并且第三透镜组还包括至少一个具有朝向物体的凹面的负透镜元件，并且该系统的特征还在于，所有透镜组在从广角端缩小到窄角端，满足以下条件：（a）0

7. 发明授权

US5642223A Tilting lens system 失效
标题翻译：倾斜镜头系统
公开(公告)号：US5642223A
公开(公告)日：1997-06-24
申请号：US443558
申请日：1995-05-18
申请人： Sachio Hasushita , Shuji Yoneyama , Koichi Maruyama , Takayuki Ito
发明人： Sachio Hasushita , Shuji Yoneyama , Koichi Maruyama , Takayuki Ito
IPC分类号： G02B13/00 , G02B15/04 , G02B26/08 , G03B5/06 , G02B27/64
CPC分类号： G02B26/0875 , G02B13/00 , G02B15/04 , G03B5/06
摘要： A tilting lens system including a plurality of lens groups in which at least one lens group subsequent to a first lens group can be tilted about a predetermined point on a principal ray axis thereof.
摘要翻译：一种倾斜透镜系统，包括多个透镜组，其中在第一透镜组之后的至少一个透镜组可以围绕其主射线轴上的预定点倾斜。

8. 发明授权

US5400101A Zooming finder 失效
标题翻译：缩放取景器
公开(公告)号：US5400101A
公开(公告)日：1995-03-21
申请号：US942446
申请日：1992-09-09
申请人： Shuji Yoneyama , Takayuki Ito
发明人： Shuji Yoneyama , Takayuki Ito
IPC分类号： G02B13/18 , G02B15/14 , G02B15/17 , G02B23/14 , G03B13/12 , G03B13/10
CPC分类号： G02B15/17 , G02B23/145
摘要： An improved zooming viewfinder includes, in order from the object side, a positive first lens group, a negative second lens group that has a zooming capability and which is capable of moving along the optical axis, a negative third lens group that has a half mirror surface on the pupil side, and a fourth lens group that is a positive eyepiece and which has a field-limiting frame on the side the closest to the object. The eyepiece includes, in order from the object side, a positive lens element 4a and a negative lens element 4b.
摘要翻译：改进的变焦取景器按照从物体侧起依次具有正的第一透镜组，具有变焦能力并且能够沿着光轴移动的负第二透镜组，具有半透视镜的负第三透镜组以及作为正目镜的第四透镜组，并且在最靠近物体的一侧具有场限制框架。目镜依次包括正透镜元件4a和负透镜元件4b。

9. 发明授权

US08873159B2 Telephoto lens system 有权
标题翻译：长焦镜头系统
公开(公告)号：US08873159B2
公开(公告)日：2014-10-28
申请号：US13600632
申请日：2012-08-31
申请人： Shuji Yoneyama
发明人： Shuji Yoneyama
IPC分类号： G02B15/14 , G02B13/02
CPC分类号： G02B13/02 , G02B7/04
摘要： A telephoto lens system includes a first lens group having a positive refractive power, and comprising at least three positive lenses and one negative lens; a second lens group having a negative refractive power, and which moves along an optical axis to perform a focusing operation; a third lens group having a positive refractive power, and comprising a cemented lens in which a positive lens having a convex surface toward the object side and a positive lens having a convex surface toward the image side are bonded to each other, a bi-convex positive lens, and a negative lens having a concave surface toward the object side, and the first through third lens groups are disposed sequentially from the object side to the image side.
摘要翻译：远摄透镜系统包括具有正折光力的第一透镜组，并且包括至少三个正透镜和一个负透镜; 具有负屈光力的第二透镜组，并且沿着光轴移动以执行聚焦操作; 具有正屈光力的第三透镜组，并且包括胶合透镜，其中具有朝向物体侧的凸面的正透镜和具有朝向像侧的凸面的正透镜彼此接合，双凸起正透镜和具有朝向物体侧的凹面的负透镜，并且第一至第三透镜组从物体侧到像侧依次布置。

10. 发明授权

US08238036B2 Zoom lens and photographing apparatus having the same 有权
标题翻译：具有相同的变焦镜头和拍摄装置
公开(公告)号：US08238036B2
公开(公告)日：2012-08-07
申请号：US12942231
申请日：2010-11-09
申请人： Shuji Yoneyama
发明人： Shuji Yoneyama
IPC分类号： G02B15/14
CPC分类号： G02B15/173 , G02B27/646
摘要： A zoom lens includes, sequentially from an 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. During zooming from a wide angle position to a telephoto position, the interval between the first lens group and the second lens group increases, the interval between the second lens group and the third lens group decreases, and an interval between the third lens group and the fourth lens group varies. The fourth lens group includes, sequentially from the object side, a first sub-lens group having a positive refractive power, a second sub-lens group having a negative refractive power, and a third sub-lens group. The second sub-lens group of the fourth lens group is moved along an optical axis to perform focusing.
摘要翻译：变焦透镜从对象侧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，具有正折光力的第三透镜组和第四透镜组。在从广角位置到望远位置的变焦期间，第一透镜组和第二透镜组之间的间隔增加，第二透镜组和第三透镜组之间的间隔减小，并且第三透镜组与第三透镜组之间的间隔第四透镜组不一样。第四透镜组从物体侧依次包括具有正折光力的第一子透镜组，具有负屈光力的第二子透镜组和第三子透镜组。第四透镜组的第二子透镜组沿着光轴移动以进行聚焦。

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