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1. 发明申请

US20100194853A1 WIDE-ANGLE OPTICAL SYSTEM, IMAGE PICKUP LENS DEVICE, MONITOR CAMERA, AND DIGITAL APPARATUS 有权
标题翻译：宽角度光学系统，图像拾取镜头设备，监视摄像机和数字设备
公开(公告)号：US20100194853A1
公开(公告)日：2010-08-05
申请号：US12679703
申请日：2008-09-22
申请人： Keiji Matsusaka , Toru Nakatani
发明人： Keiji Matsusaka , Toru Nakatani
IPC分类号： H04N7/18 , G02B13/18
CPC分类号： G02B13/06 , G02B13/004
摘要： A wide-angle optical system comprises a front lens group (11), and a rear lens group (12), with an aperture stop (13) interposed between. The front lens group (11) includes at least two negative lenses (111, 112) and at least one positive lens (113). At least one of the positive lenses included in the front lens group (11) has at least one aspherical surface. The front lens group (11) satisfies the conditional expression vdp
摘要翻译：广角光学系统包括前透镜组（11）和后透镜组（12），其间插有孔径光阑（13）。前透镜组（11）包括至少两个负透镜（111,112）和至少一个正透镜（113）。包括在前透镜组（11）中的至少一个正透镜具有至少一个非球面。前透镜组（11）满足条件表达式vdp <29，其中vdp是包括在前透镜组（11）中的正透镜的阿贝数的最小值。

2. 发明申请

US20060291070A1 Variable magnification optical system 有权
标题翻译：变倍光学系统
公开(公告)号：US20060291070A1
公开(公告)日：2006-12-28
申请号：US11235623
申请日：2005-09-26
申请人： Mamoru Terada , Toru Nakatani
发明人： Mamoru Terada , Toru Nakatani
IPC分类号： G02B15/14
CPC分类号： G02B15/173
摘要： A variable magnification optical system for forming an optical image of an object on a light-receiving surface of an image sensor with variable magnification includes: from the object side, at least a first lens unit having a positive optical power, a second lens unit having a negative optical power, a third lens unit having a positive optical power, and a fourth lens unit having a positive optical power. In magnification variation from the wide angle end to the telephoto end, at least the first lens unit moves. Conditional formulae (1) and (2) below are fulfilled: (1) 6.0
摘要翻译：一种用于在可变放大率的图像传感器的光接收表面上形成物体的光学图像的可变放大倍率光学系统包括：从物体侧至少具有正光焦度的第一透镜单元，具有负光焦度，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放大率变化中，至少第一透镜单元移动。满足以下条件式（1）和（2）：（1）6.0 ，其中fl表示第一透镜单元的焦距 fw表示广角端的整个系统的焦距，NdΛ表示包括在第二透镜单元中的所有透镜元件中的d线的平均折射率。

3. 发明申请

US20060132928A1 Taking optical system and image sensing apparatus 有权
标题翻译：采用光学系统和图像传感装置
公开(公告)号：US20060132928A1
公开(公告)日：2006-06-22
申请号：US11102051
申请日：2005-04-08
申请人： Toru Nakatani , Mamoru Terada , Kenshi Nabeta
发明人： Toru Nakatani , Mamoru Terada , Kenshi Nabeta
IPC分类号： G02B15/14
CPC分类号： G02B15/173
摘要： The present invention provides a compact, high-performance, and easy-to-manufacture taking optical system that offers an extremely high zoom ratio. The taking optical system includes, from the subject side, a first lens group having a positive optical power, a second lens group having a negative optical power, a third lens group having a positive optical power, and a fourth lens group having a positive optical power. The taking optical system achieves zooming by the movements of the first to fourth lens groups and focusing by the movement of the fourth lens group. The taking optical system fulfills the following conditions: 0.05≦f3/f4≦0.95 and 7.0≦f1/fw≦20.0, where f1, f3, and f4 represent the focal lengths of the first, third, and fourth lens groups, respectively, and fw represents the focal length of the entire taking optical system at the wide-angle end thereof.
摘要翻译：本发明提供了一种紧凑，高性能，易于制造的拍摄光学系统，其提供了非常高的变焦比。拍摄光学系统包括从被摄体侧具有正光焦度的第一透镜组，具有负光焦度的第二透镜组，具有正光焦度的第三透镜组，以及具有正光学功能的第四透镜组功率。拍摄光学系统通过第一至第四透镜组的运动实现变焦，并通过第四透镜组的移动进行聚焦。拍摄光学系统满足以下条件：0.05 <= f 3 / f 4 <= 0.95和7.0 <= f 1 /fw<=20.0，其中f 1，f 3和f 4表示第一，第三透镜组和第四透镜组，fw表示整个拍摄光学系统在其广角端的焦距。

4. 发明授权

US08654457B2 Wide-angle optical system, and imaging device 有权
标题翻译：广角光学系统和成像装置
公开(公告)号：US08654457B2
公开(公告)日：2014-02-18
申请号：US13001231
申请日：2009-06-15
申请人： Makoto Jin , Keiji Matsusaka , Toru Nakatani
发明人： Makoto Jin , Keiji Matsusaka , Toru Nakatani
IPC分类号： G02B9/60 , G02B9/56
CPC分类号： G02B9/60 , G02B9/56 , G02B13/06 , G02B13/18
摘要： The present invention provides a wide-angle optical system constituted of, in order from the object side to the image side, front group 11, stop 12, and rear group 13. The front group 11 is constituted, in order from the object side to the image side, of first lens 111 having negative optical power, second lens 112 having negative optical power, and third lens 113 having positive optical power. The rear group 13 is constituted, in order from the object side to the image side, of fourth lens 131 having positive optical power, and fifth lens 132 having negative optical power. The opposite surface from the stop of each of the paired lenses 113 and 131 arranged at the both sides of the stop 12 is a convex surface.
摘要翻译：本发明提供一种广角光学系统，其从物体侧到图像侧依次为前组11，止挡12和后组13.前组11按照从物侧到具有负光焦度的第一透镜111的像侧，具有负光焦度的第二透镜112和具有正光焦度的第三透镜113。后组13从物体侧到像侧依次构成具有正光焦度的第四透镜131和具有负光焦度的第五透镜132。布置在止动件12两侧的成对透镜113和131中的每一个的止动件的相对表面是凸面。

5. 发明授权

US08576501B2 Wide-angle optical system, image pickup lens device, monitor camera, and digital apparatus 有权
标题翻译：广角光学系统，摄像镜头装置，监视摄像机和数字设备
公开(公告)号：US08576501B2
公开(公告)日：2013-11-05
申请号：US12679703
申请日：2008-09-22
申请人： Keiji Matsusaka , Toru Nakatani
发明人： Keiji Matsusaka , Toru Nakatani
IPC分类号： G02B3/02 , G02B13/18 , G02B9/06
CPC分类号： G02B13/06 , G02B13/004
摘要： A wide-angle optical system comprises a front lens group (11), and a rear lens group (12), with an aperture stop (13) interposed between. The front lens group (11) includes at least two negative lenses (111, 112) and at least one positive lens (113). At least one of the positive lenses included in the front lens group (11) has at least one aspherical surface. The front lens group (11) satisfies the conditional expression vdp
摘要翻译：广角光学系统包括前透镜组（11）和后透镜组（12），其间插有孔径光阑（13）。前透镜组（11）包括至少两个负透镜（111,112）和至少一个正透镜（113）。包括在前透镜组（11）中的至少一个正透镜具有至少一个非球面。前透镜组（11）满足条件表达式vdp <29，其中vdp是包括在前透镜组（11）中的正透镜的阿贝数的最小值。

6. 发明授权

US07339748B2 Variable magnification optical system 有权
标题翻译：变倍光学系统
公开(公告)号：US07339748B2
公开(公告)日：2008-03-04
申请号：US11235623
申请日：2005-09-26
申请人： Mamoru Terada , Toru Nakatani
发明人： Mamoru Terada , Toru Nakatani
IPC分类号： G02B15/14
CPC分类号： G02B15/173
摘要： A variable magnification optical system for forming an optical image of an object on a light-receiving surface of an image sensor with variable magnification includes: from the object side, at least a first lens unit having a positive optical power, a second lens unit having a negative optical power, a third lens unit having a positive optical power, and a fourth lens unit having a positive optical power. In magnification variation from the wide angle end to the telephoto end, at least the first lens unit moves. Conditional formulae (1) and (2) below are fulfilled: (1) 6.0
摘要翻译：一种用于在可变放大率的图像传感器的光接收表面上形成物体的光学图像的可变放大倍数光学系统包括：从物体侧至少具有正光焦度的第一透镜单元，具有负光焦度，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放大率变化中，至少第一透镜单元移动。满足以下条件式（1）和（2）：（1）6.0 ，其中fl表示第一透镜单元的焦距 fw表示广角端的整个系统的焦距，NdΛ表示包括在第二透镜单元中的所有透镜元件中的d线的平均折射率。

7. 发明授权

US07336426B2 Image pickup optical system and image pickup apparatus 有权
标题翻译：摄像光学系统和摄像装置
公开(公告)号：US07336426B2
公开(公告)日：2008-02-26
申请号：US11726008
申请日：2007-03-20
申请人： Toru Nakatani , Mamoru Terada
发明人： Toru Nakatani , Mamoru Terada
IPC分类号： G02B15/14 , G02B27/64
CPC分类号： G02B15/173 , G02B27/646
摘要： An image pickup optical system according to the present invention is provided for forming a light flux from an object into an optical image on an image pickup element. The image pickup optical system includes: a first lens group having a positive power; a second lens group having a negative power; a third lens group having a positive power; a fourth lens group having a negative power; and a fifth lens group. A distance between each neighboring lens groups changes with the fourth lens group statically positioned, for varying power of the image pickup optical system. The fourth lens group moves in a direction substantially perpendicular to an optical axis for shake compensation. The image pickup optical system fulfills the predetermined conditional formulas according to focal lengths of the first and fourth lens groups.
摘要翻译：提供根据本发明的图像拾取光学系统，用于将从物体形成的光束形成图像拾取元件上的光学图像。摄像光学系统包括：具有正功率的第一透镜组; 具有负功率的第二透镜组; 具有正功率的第三透镜组; 具有负电力的第四透镜组; 和第五透镜组。每个相邻透镜组之间的距离随着第四透镜组静态定位而变化，用于改变摄像光学系统的功率。第四透镜组在基本上垂直于光轴的方向上移动以进行抖动补偿。摄像光学系统根据第一和第四透镜组的焦距实现预定的条件公式。

8. 发明申请

US20070229985A1 Image pickup optical system and image pickup apparatus 有权
标题翻译：摄像光学系统和摄像装置
公开(公告)号：US20070229985A1
公开(公告)日：2007-10-04
申请号：US11725295
申请日：2007-03-19
申请人： Toru Nakatani , Mamoru Terada
发明人： Toru Nakatani , Mamoru Terada
IPC分类号： G02B9/34
CPC分类号： G02B15/173 , G02B27/646
摘要： An image pickup optical system according to the present invention includes: a first lens group having a positive power; a second lens group having a negative power; a third lens group having a positive power; and a fourth lens group having a positive power which consists of a front group with a negative power and a rear group with a positive power. The first lens group moves to the object side and a distance between each neighboring lens groups changes, for varying power of the image pickup optical system. One group of the front group and the rear group in the fourth lens group consists of one lens which moves substantially perpendicular to an optical axis for a shake compensation. The image pickup optical system fulfills the predetermined conditional formula according to a focal length of the first lens group.
摘要翻译：根据本发明的摄像光学系统包括：具有正功率的第一透镜组; 具有负功率的第二透镜组; 具有正功率的第三透镜组; 以及具有正功率的第四透镜组，其由具有负功率的前组和具有正功率的后组组成。第一透镜组移动到物体侧，并且每个相邻透镜组之间的距离改变，用于改变摄像光学系统的功率。第四透镜组中的一组前组和后组由一个基本垂直于光轴移动的透镜组成，用于抖动补偿。摄像光学系统根据第一透镜组的焦距实现预定的条件公式。

9. 发明授权

US07206137B2 Taking optical system and image sensing apparatus 有权
标题翻译：采用光学系统和图像传感装置
公开(公告)号：US07206137B2
公开(公告)日：2007-04-17
申请号：US11102051
申请日：2005-04-08
申请人： Toru Nakatani , Mamoru Terada , Kenshi Nabeta
发明人： Toru Nakatani , Mamoru Terada , Kenshi Nabeta
IPC分类号： G02B15/14
CPC分类号： G02B15/173
摘要： The present invention provides a compact, high-performance, and easy-to-manufacture taking optical system that offers an extremely high zoom ratio. The taking optical system includes, from the subject side, a first lens group having a positive optical power, a second lens group having a negative optical power, a third lens group having a positive optical power, and a fourth lens group having a positive optical power. The taking optical system achieves zooming by the movements of the first to fourth lens groups and focusing by the movement of the fourth lens group. The taking optical system fulfills the following conditions: 0.05≦f3/f4≦0.95 and 7.0≦f1/fw≦20.0, where f1, f3, and f4 represent the focal lengths of the first, third, and fourth lens groups, respectively, and fw represents the focal length of the entire taking optical system at the wide-angle end thereof.
摘要翻译：本发明提供了一种紧凑，高性能，易于制造的拍摄光学系统，其提供了非常高的变焦比。拍摄光学系统包括从被摄体侧具有正光焦度的第一透镜组，具有负光焦度的第二透镜组，具有正光焦度的第三透镜组，以及具有正光学功能的第四透镜组功率。拍摄光学系统通过第一至第四透镜组的运动实现变焦，并通过第四透镜组的移动进行聚焦。拍摄光学系统满足以下条件：0.05 <= f 3 / f 4 <= 0.95和7.0 <= f 1 /fw<=20.0，其中f 1，f 3和f 4表示第一，第三透镜组和第四透镜组，fw表示整个拍摄光学系统在其广角端的焦距。

10. 发明申请

US20150170628A1 STRINGED INSTRUMENT 审中-公开
标题翻译：弦乐器
公开(公告)号：US20150170628A1
公开(公告)日：2015-06-18
申请号：US14629051
申请日：2015-02-23
申请人： Toru Nakatani
发明人： Toru Nakatani
IPC分类号： G10H3/18
CPC分类号： G10H1/18 , G10H1/16 , G10H1/20 , G10H3/185 , G10H3/24 , G10H2230/095
摘要： A stringed instrument includes a body, a string, a string exciting device and a bridge. The body supports the string, the string exciting device and the bridge. The string has a scale length determined by a distance between a first support point and a second support point. The string exciting device is designed to be driven by an electrical signal having a certain frequency and vibrate the string by applying an excitation signal having a frequency corresponding to the frequency of the electrical signal. The bridge has the first support point and a surface located between the first support point and the second support point and designed to come into contact with the string during vibration of the string.
摘要翻译：弦乐器包括一个主体，一个琴弦，弦乐器和一个桥。身体支撑弦乐，琴弦激发装置和桥梁。弦具有由第一支撑点和第二支撑点之间的距离确定的刻度长度。串激励装置被设计为由具有一定频率的电信号驱动，并通过施加具有对应于电信号的频率的频率的激励信号来振荡该串。桥具有第一支撑点和位于第一支撑点和第二支撑点之间的表面，并被设计成在弦的振动期间与弦接触。

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