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1. 发明申请

US20070272840A1 OPTICAL ROTARY ENCODER 有权
标题翻译：光学旋转编码器
公开(公告)号：US20070272840A1
公开(公告)日：2007-11-29
申请号：US10599142
申请日：2005-03-29
申请人： Takeshi Musha , Toru Oka , Yoichi Ohmura
发明人： Takeshi Musha , Toru Oka , Yoichi Ohmura
IPC分类号： G01D5/34
CPC分类号： G01D5/30 , G01D5/34715 , G01D5/3473
摘要： An optical encode includes: a rotary slit plate having a rotation angle detection track including an optical slit; a light source for applying light to the optical slit; light detecting elements for rotation angle detection and arranged at positions to which light emitted from the light source is applied to the optical slit, to detect the light emitted from the light source and passing through the optical slit; and light detecting elements for light amount monitoring arranged at locations on a circumference in corresponding relationship with positions to which light emitted from the light source is applied to the optical slit, to detect the light emitted from the light source and passing through the optical slit. The light detecting elements for light amount monitoring have an angular width that is an integer multiple of the angular interval of the light intensity distribution on surfaces of the light detecting elements for light amount monitoring.
摘要翻译：光学编码器包括：旋转狭缝板，具有包括光学狭缝的旋转角度检测轨迹; 用于向光学狭缝施加光的光源; 用于旋转角度检测的光检测元件，并且布置在从光源发射的光被施加到光学狭缝的位置处，以检测从光源发射并穿过光学狭缝的光; 以及光量监测用光检测元件，其配置在与从光源射出的光对应的位置对应的圆周上的位置处，以检测从光源发出的光并通过光学狭缝。用于光量监视的光检测元件的角度宽度是用于光量监视的光检测元件的表面上的光强度分布的角度间隔的整数倍。

2. 发明授权

US07405392B2 Optical rotary encoder 有权
标题翻译：光学旋转编码器
公开(公告)号：US07405392B2
公开(公告)日：2008-07-29
申请号：US10599142
申请日：2005-03-29
申请人： Takeshi Musha , Toru Oka , Yoichi Ohmura
发明人： Takeshi Musha , Toru Oka , Yoichi Ohmura
IPC分类号： G01D5/34
CPC分类号： G01D5/30 , G01D5/34715 , G01D5/3473
摘要： An optical encoder includes: a rotary slit plate having a rotation angle detection track including an optical slit; a light source for applying light to the optical slit; light detecting elements for rotation angle detection and arranged at positions to which light emitted from the light source is applied to the optical slit, to detect the light emitted from the light source and passing through the optical slit; and light detecting elements for light amount monitoring arranged at locations on a circumference in corresponding relationship with positions to which light emitted from the light source is applied to the optical slit, to detect the light emitted from the light source and passing through the optical slit. The light detecting elements for light amount monitoring have an angular width that is an integer multiple of the angular interval of the light intensity distribution on surfaces of the light detecting elements for light amount monitoring.
摘要翻译：光学编码器包括：旋转狭缝板，具有包括光学狭缝的旋转角度检测轨迹; 用于向光学狭缝施加光的光源; 用于旋转角度检测的光检测元件，并且布置在从光源发射的光被施加到光学狭缝的位置处，以检测从光源发射并穿过光学狭缝的光; 以及光量监测用光检测元件，其配置在与从光源射出的光对应的位置对应的圆周上的位置处，以检测从光源发出的光并通过光学狭缝。用于光量监视的光检测元件的角度宽度是用于光量监视的光检测元件的表面上的光强度分布的角度间隔的整数倍。

3. 发明申请

US20100052664A1 MAGNETIC ROTATIONAL-ANGLE DETECTOR 有权
标题翻译：磁力旋转角度检测器
公开(公告)号：US20100052664A1
公开(公告)日：2010-03-04
申请号：US12596729
申请日：2008-04-17
申请人： Hiroshi Nishizawa , Hajime Nakajima , Takeshi Musha , Yoichi Ohmura
发明人： Hiroshi Nishizawa , Hajime Nakajima , Takeshi Musha , Yoichi Ohmura
IPC分类号： G01B7/30
CPC分类号： G01D5/2451
摘要： The present invention provides a magnetic rotational-angle detector capable of detecting a position and a rotational angle of a rotating member with excellent accuracy. The magnetic rotational-angle detector includes device arrays (51, 52) constituted by a plurality of magnetic sensor devices which are arranged to cancel the n-th order harmonic components by each other. In the device arrays, the magnetic sensor devices corresponding to each other are arranged such that they are spaced apart with a distance of (2m+1)λ, and the arrangement of all the magnetic sensor devices and their orientations with respect to a power-supply terminal and a ground terminal are axisymmetrical about a straight line (2b) passing through a barycenric position (59) of all the magnetic sensor devices which is positioned on a straight line along a radial direction of a rotating drum (1).
摘要翻译：本发明提供一种能够以高精度检测旋转部件的位置和旋转角度的磁旋转角度检测装置。磁旋转角度检测器包括由多个磁传感器装置构成的装置阵列（51,52），其被布置为相互抵消n次谐波分量。在器件阵列中，彼此对应的磁传感器装置被布置为使得它们以（2m + 1）λ的距离间隔开，并且所有磁传感器装置的布置及其相对于功率 - 供电端子和接地端子围绕通过沿着旋转鼓（1）的径向位于直线上的所有磁传感器装置的重心位置（59）的直线（2b）的轴对称。

4. 发明授权

US08134359B2 Magnetic rotational-angle detector 有权
标题翻译：磁旋转角度检测器
公开(公告)号：US08134359B2
公开(公告)日：2012-03-13
申请号：US12596729
申请日：2008-04-17
申请人： Hiroshi Nishizawa , Hajime Nakajima , Takeshi Musha , Yoichi Ohmura
发明人： Hiroshi Nishizawa , Hajime Nakajima , Takeshi Musha , Yoichi Ohmura
IPC分类号： G01B7/14
CPC分类号： G01D5/2451
摘要： The present invention provides a magnetic rotational-angle detector capable of detecting a position and a rotational angle of a rotating member with excellent accuracy. The magnetic rotational-angle detector includes device arrays (51, 52) constituted by a plurality of magnetic sensor devices which are arranged to cancel the n-th order harmonic components by each other. In the device arrays, the magnetic sensor devices corresponding to each other are arranged such that they are spaced apart with a distance of (2m+1)λ, and the arrangement of all the magnetic sensor devices and their orientations with respect to a power-supply terminal and a ground terminal are axisymmetrical about a straight line (2b) passing through a barycenric position (59) of all the magnetic sensor devices which is positioned on a straight line along a radial direction of a rotating drum (1).
摘要翻译：本发明提供一种能够以高精度检测旋转部件的位置和旋转角度的磁旋转角度检测装置。磁旋转角度检测器包括由多个磁传感器装置构成的装置阵列（51,52），其被布置为相互抵消n次谐波分量。在器件阵列中，彼此对应的磁传感器装置被布置为使得它们以（2m + 1）λ的距离间隔开，并且所有磁传感器装置的布置及其相对于功率 - 供电端子和接地端子围绕通过沿着旋转鼓（1）的径向位于直线上的所有磁传感器装置的重心位置（59）的直线（2b）的轴对称。

5. 发明授权

US07589314B2 Optical encoder applying substantially parallel light beams and three periodic optical elements 失效
标题翻译：光学编码器施加基本平行的光束和三个周期性光学元件
公开(公告)号：US07589314B2
公开(公告)日：2009-09-15
申请号：US11571617
申请日：2005-06-17
申请人： Toru Oka , Yoichi Ohmura
发明人： Toru Oka , Yoichi Ohmura
IPC分类号： G01D5/34
CPC分类号： G01D5/38
摘要： An optical encoder for measuring a relative movement of a first scale plate and a second scale plate, comprises: a light source; a first scale plate which converts light from the light source into a cyclic light quantity distribution; a second scale plate which cyclically makes spatial modulation on the light beams from the first scale plate; a third scale plate having slits which allow the light beams from the second scale plate to pass therethrough; and a light-receiving element which receives the light beams from the third scale plate; a lens which converts light from the light source into substantially parallel light beams; and an optic array which converges or diffuses light beams in the direction of periodic change and generates a cyclic light quantity distribution on the first scale plate.
摘要翻译：一种用于测量第一标尺板和第二标尺板的相对运动的光学编码器，包括：光源; 将来自光源的光转换为循环光量分布的第一标尺板; 第二刻度板，循环地对来自第一刻度板的光束进行空间调制; 具有允许来自第二刻度板的光束通过的狭缝的第三刻度板; 以及受光元件，其接收来自所述第三刻度板的光束; 将来自光源的光转换成基本上平行的光束的透镜; 以及在周期性变化的方向上会聚或扩散光束的光学阵列，并且在第一刻度板上产生循环光量分布。

6. 发明授权

US07034282B2 Optical rotary encoder 有权
标题翻译：光学旋转编码器
公开(公告)号：US07034282B2
公开(公告)日：2006-04-25
申请号：US10819952
申请日：2004-04-08
申请人： Toru Oka , Yoichi Ohmura
发明人： Toru Oka , Yoichi Ohmura
IPC分类号： G01D5/34
CPC分类号： G01D5/342 , G01D5/34715
摘要： An optical rotary encoder for acquiring rotation information regarding a shaft includes a light source located on or in the vicinity of the axis of rotation of the shaft for emitting light rays and a code wheel mounted on the shaft for rotation about the axis of rotation. The code wheel has a plurality of alternating light transmissive and non-light transmissive areas in a circumferential direction. A reflector is spaced a distance from the code wheel for reflecting the light rays emitted from the light source so that they are turned into a parallel beam of light. The parallel beam of light illuminates the light transmissive areas of the code wheel so that light passing through the light transmissive areas is directed toward a peripheral region of the light source. The encoder also includes one or more light-detecting element for detecting the light passing through the light transmissive areas.
摘要翻译：用于获取关于轴的旋转信息的光学旋转编码器包括位于用于发射光线的轴的旋转轴线附近或附近的光源和安装在轴上以用于围绕旋转轴线旋转的编码轮。码盘在圆周方向上具有多个交替的透光区域和非透光区域。反射器与码轮间隔开一定距离，用于反射从光源发射的光线，使得它们变成平行光束。平行光束照射码盘的透光区域，使得穿过透光区域的光线朝向光源的周边区域。编码器还包括一个或多个用于检测穿过透光区域的光的光检测元件。

7. 发明申请

US20080277569A1 OPTICAL ENCODER 有权
标题翻译：光学编码器
公开(公告)号：US20080277569A1
公开(公告)日：2008-11-13
申请号：US11854635
申请日：2007-09-13
申请人： Toru Oka , Yoichi Ohmura , Hajime Nakajima , Masahiko Sakamoto , Toshikazu Kitagaki
发明人： Toru Oka , Yoichi Ohmura , Hajime Nakajima , Masahiko Sakamoto , Toshikazu Kitagaki
IPC分类号： G01D5/34
CPC分类号： G01D5/36 , G01D5/34707
摘要： In an optical encoder comprising an optical scale in which a light transmission portion and a light non-transparent portion are arranged and an output pattern obtained by emitting an incident light functions as an optical code, a light source portion and a light detecting portion, the light non-transparent portion is constituted of at least one pair of inclined surfaces which are opposed in such a manner as to become farther away from each other towards the side where the incident light enters and set so that an incident angle of the optical axis of the incident light from the light source should not be smaller than a critical angle of incidence, and the light non-transparent portion is constructed so that the incident light which enters one inclined surface should be totally reflected thereon to enter the other inclined surface and then at least part of the incident light should be reflected on the other inclined surface, and a reflected light which is reflected on the other inclined surface should not enter a light emitting portion of the light source and a reflecting portion around the light emitting portion.
摘要翻译：在包括其中布置有光透射部分和光不透明部分的光学标尺的光学编码器中，并且通过发射入射光获得的输出图案用作光学代码，光源部分和光检测部分，光不透明部分由至少一对倾斜表面构成，所述至少一对倾斜表面以相对于彼此更远离入射光入射侧的方式相对的方式构成，使得入射光的入射角来自光源的入射光不应小于临界入射角，并且光非透明部分被构造成使得入射到一个倾斜表面的入射光应该被全反射以进入另一个倾斜表面，然后入射光的至少一部分应该在另一个倾斜表面上反射，并且在另一个倾斜表面上反射的反射光倾斜表面不应该进入光源的发光部分和围绕发光部分的反射部分。

8. 发明授权

US07285769B2 Optical encoder with reduced reflected light error having a light non-transparent portion with inclined surfaces 有权
标题翻译：具有减弱的反射光误差的光学编码器具有具有倾斜表面的光不透明部分
公开(公告)号：US07285769B2
公开(公告)日：2007-10-23
申请号：US10555101
申请日：2004-08-23
申请人： Toru Oka , Yoichi Ohmura , Hajime Nakajima , Masahiko Sakamoto , Toshikazu Kitagaki
发明人： Toru Oka , Yoichi Ohmura , Hajime Nakajima , Masahiko Sakamoto , Toshikazu Kitagaki
IPC分类号： G01D5/34
CPC分类号： G01D5/36 , G01D5/34707
摘要： In an optical encoder comprising an optical scale in which a light transmission portion and a light non-transparent portion are arranged and an output pattern obtained by emitting an incident light functions as an optical code, a light source portion and a light detecting portion, the light non-transparent portion is constituted of at least one pair of inclined surfaces which are opposed in such a manner as to become farther away from each other towards the side where the incident light enters and set so that an incident angle of the optical axis of the incident light from the light source should not be smaller than a critical angle of incidence, and the light non-transparent portion is constructed so that the incident light which enters one inclined surface should be totally reflected thereon to enter the other inclined surface and then at least part of the incident light should be reflected on the other inclined surface, and a reflected light which is reflected on the other inclined surface should not enter a light emitting portion of the light source and a reflecting portion around the light emitting portion.
摘要翻译：在包括其中布置有光透射部分和光不透明部分的光学标尺的光学编码器中，并且通过发射入射光获得的输出图案用作光学代码，光源部分和光检测部分，光不透明部分由至少一对倾斜表面构成，所述至少一对倾斜表面以相对于彼此更远离入射光入射和设定的一侧的方式构成，使得光轴的光轴的入射角来自光源的入射光不应小于临界入射角，并且光非透明部分被构造成使得入射到一个倾斜表面的入射光应该被全反射以进入另一个倾斜表面，然后入射光的至少一部分应该在另一个倾斜表面上反射，并且在另一个倾斜表面上反射的反射光倾斜表面不应该进入光源的发光部分和围绕发光部分的反射部分。

9. 发明授权

US07538313B2 Optical encoder having a no track portion of an optical scale being placed at a position symmetrical to a light non-transparent portion within an irradiation region of incident light 有权
标题翻译：在光入射光的照射区域内具有光学刻度的无轨道部分的光学编码器被放置在与光不透明部分对称的位置
公开(公告)号：US07538313B2
公开(公告)日：2009-05-26
申请号：US11854635
申请日：2007-09-13
申请人： Toru Oka , Yoichi Ohmura , Hajime Nakajima , Masahiko Sakamoto , Toshikazu Kitagaki
发明人： Toru Oka , Yoichi Ohmura , Hajime Nakajima , Masahiko Sakamoto , Toshikazu Kitagaki
IPC分类号： G01D5/34
CPC分类号： G01D5/36 , G01D5/34707
摘要： In an optical encoder comprising an optical scale in which a light transmission portion and a light non-transparent portion are arranged and an output pattern obtained by emitting an incident light functions as an optical code, a light source portion and a light detecting portion, the light non-transparent portion is constituted of at least one pair of inclined surfaces which are opposed in such a manner as to become farther away from each other towards the side where the incident light enters and set so that an incident angle of the optical axis of the incident light from the light source should not be smaller than a critical angle of incidence, and the light non-transparent portion is constructed so that the incident light which enters one inclined surface should be totally reflected thereon to enter the other inclined surface and then at least part of the incident light should be reflected on the other inclined surface, and a reflected light which is reflected on the other inclined surface should not enter a light emitting portion of the light source and a reflecting portion around the light emitting portion.
摘要翻译：在包括其中布置有光透射部分和光不透明部分的光学标尺的光学编码器中，并且通过发射入射光获得的输出图案用作光学代码，光源部分和光检测部分，光不透明部分由至少一对倾斜表面构成，所述至少一对倾斜表面以相对于彼此更远离入射光入射侧的方式相对的方式构成，使得入射光的入射角来自光源的入射光不应小于临界入射角，并且光非透明部分被构造成使得入射到一个倾斜表面的入射光应该被全反射以进入另一个倾斜表面，然后入射光的至少一部分应该在另一个倾斜表面上反射，并且在另一个倾斜表面上反射的反射光倾斜表面不应该进入光源的发光部分和围绕发光部分的反射部分。

10. 发明申请

US20080048104A1 Optical Encoder 失效
标题翻译：光学编码器
公开(公告)号：US20080048104A1
公开(公告)日：2008-02-28
申请号：US11571617
申请日：2005-06-17
申请人： Toru Oka , Yoichi Ohmura
发明人： Toru Oka , Yoichi Ohmura
IPC分类号： G01D5/30 , G01D5/34
CPC分类号： G01D5/38
摘要： An optical encoder for measuring a relative movement of a first scale plate and a second scale plate, comprises: a light source; a first scale plate which converts light from the light source into a cyclic light quantity distribution; a second scale plate which cyclically makes spatial modulation on the light beams from the first scale plate; a third scale plate having slits which allow the light beams from the second scale plate to pass therethrough; and a light-receiving element which receives the light beams from the third scale plate; a lens which converts light from the light source into substantially parallel light beams; and an optic array which converges or diffuses light beams in the direction of periodic change and generates a cyclic light quantity distribution on the first scale plate.
摘要翻译：一种用于测量第一标尺板和第二标尺板的相对运动的光学编码器，包括：光源; 将来自光源的光转换为循环光量分布的第一标尺板; 第二刻度板，循环地对来自第一刻度板的光束进行空间调制; 具有允许来自第二刻度板的光束通过的狭缝的第三刻度板; 以及受光元件，其接收来自所述第三刻度板的光束; 将来自光源的光转换成基本上平行的光束的透镜; 以及在周期性变化的方向上会聚或扩散光束的光学阵列，并且在第一刻度板上产生循环光量分布。

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