专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US06972834B1 Optical distance sensor 失效
标题翻译：光学距离传感器
公开(公告)号：US06972834B1
公开(公告)日：2005-12-06
申请号：US10182770
申请日：2000-12-11
申请人： Toru Oka , Hajime Nakajima , Masahiro Shikai , Akihide Shiratsuki , Jurgen Mohr , Ulrike Wallrabe , Uwe Hollenbach
发明人： Toru Oka , Hajime Nakajima , Masahiro Shikai , Akihide Shiratsuki , Jurgen Mohr , Ulrike Wallrabe , Uwe Hollenbach
IPC分类号： G01C3/06 , G01C3/08 , G01D5/26 , G01S7/481 , G01S17/46 , G02B17/08 , G01C3/00
CPC分类号： G01S17/48 , G01C3/06 , G01C3/085 , G01D5/26 , G01S7/481 , G01S7/4813 , G02B19/0028 , G02B19/0052 , G02B19/0061 , G02B19/0085
摘要： An optical distance sensor includes a first substrate provided with a light emitting element and a light detecting element, a one-piece optical structure body on a second substrate, the optical structure body having optical elements for converging incident light in a direction parallel to a surface of the second substrate and for converging an outgoing light beam from the light emitting element and a light beam reflected by an object in the direction parallel to the surface of the second substrate, and lenses for converging incident light in a direction perpendicular to the surface of the second substrate and for converging the outgoing light beam from the light emitting element and the light beam reflected by the object in the direction perpendicular to the surface of the second substrate, respectively.
摘要翻译：光学距离传感器包括设置有发光元件和光检测元件的第一基板，在第二基板上的一体式光学结构体，所述光学结构体具有用于使入射光在平行于表面的方向会聚的光学元件并且用于会聚来自发光元件的输出光束和在与第二基板的表面平行的方向上由物体反射的光束，以及用于在垂直于第二基板的表面的方向上会聚入射光的透镜第二基板，用于分别使来自发光元件的出射光束和由物体反射的光束在垂直于第二基板的表面的方向上会聚。

2. 发明授权

US06846116B2 Sensor head 失效
标题翻译：传感器头
公开(公告)号：US06846116B2
公开(公告)日：2005-01-25
申请号：US10182628
申请日：2000-12-11
申请人： Toru Oka , Hajime Nakajima , Masahiro Shikai , Akihide Shiratsuki , Jurgen Mohr , Ulrike Wallrabe , Uwe Hollenbach
发明人： Toru Oka , Hajime Nakajima , Masahiro Shikai , Akihide Shiratsuki , Jurgen Mohr , Ulrike Wallrabe , Uwe Hollenbach
IPC分类号： G01D5/26 , G01S7/481 , G01S17/46 , G02B6/42
CPC分类号： G01S17/48 , G01D5/26 , G01S7/4813
摘要： A sensor head includes a first substrate provided with a light emitting element and a light detecting element, a one-piece optical structure body on a second substrate, the optical structure body having optical elements for converging incident light in a direction parallel to a surface of the second substrate and for converging an outgoing beam from the light emitting element and a light beam reflected by an object in the direction parallel to the surface of the second substrate, and lenses for converging incident light in a direction perpendicular to the surface of the second substrate and for converging the outgoing beam from the light emitting element and the light beam reflected by the object in the direction perpendicular to the surface of the second substrate, respectively.
摘要翻译：传感器头包括设置有发光元件和光检测元件的第一基板，在第二基板上的一体式光学结构体，所述光学结构体具有用于使入射光沿平行于所述第二基板用于会聚来自所述发光元件的输出光束和在与所述第二基板的表面平行的方向上由物体反射的光束，以及用于在与所述第二基板的表面垂直的方向上会聚入射光的透镜并且用于分别使来自发光元件的输出光束和由物体反射的光束在垂直于第二基板的表面的方向上会聚。

3. 发明授权

US6054938A Optical encoder 失效
标题翻译：光学编码器
公开(公告)号：US6054938A
公开(公告)日：2000-04-25
申请号：US21271
申请日：1998-02-10
申请人： Hajime Nakajima , Masahiro Shikai , Toru Oka , Toshiro Nakashima , Kazuo Takashima
发明人： Hajime Nakajima , Masahiro Shikai , Toru Oka , Toshiro Nakashima , Kazuo Takashima
IPC分类号： G01D5/36 , G01D5/347 , H03M1/00 , G01D5/34
CPC分类号： G01D5/34723
摘要： A detecting unit provided with an optical system is disposed away from a control unit formed by an electric circuit and an optical transmission/receiving means, and the detecting unit and the control unit are coupled through a transmission optical fiber. The control unit transmits to the detecting unit through the optical fiber a light wave which was subjected to the intensity modulation by a sinusoidal wave of a predetermined frequency. The transmitted light wave is branched into at least two branched optical paths within the detecting unit thereby to perform the phase modulation as to the respective light waves. The light waves passed through the respective branched optical paths are subjected to the phase modulation by the sinusoidal waves which differ in phase 1/4 period by 1/4 period from one another according to a position on a straight line or a rotation angle of a subject to be detected. Then, the light waves thus subjected to the intensity modulation are coupled to a single transmission optical fiber through the branched optical paths and transmitted to the control unit through the transmission optical fiber. In the control unit, the modulated light wave is received and subjected to the phase detection, thereby to calculate and output the position and the rotation angle in accordance with the phase modulation amount of the received light wave.
摘要翻译：设置有光学系统的检测单元远离由电路和光学发送/接收装置形成的控制单元设置，并且检测单元和控制单元通过传输光纤耦合。控制单元通过光纤向检测单元发送经过预定频率的正弦波进行强度调制的光波。透射光波被分支到检测单元内的至少两个分支光路中，从而对相应的光波进行相位调制。通过相应的分支光路的光波由相位相差+ E，fra 1/4 + EE周期+ E的正弦波进行相位调制，根据待检测对象的直线或旋转角度的位置。然后，经受强度调制的光波通过分支光路耦合到单个传输光纤，并通过传输光纤传输到控制单元。在控制单元中，调制光波被接收并进行相位检测，从而根据接收的光波的相位调制量来计算和输出位置和旋转角度。

4. 发明授权

US07470892B2 Optical encoder 有权
标题翻译：光学编码器
公开(公告)号：US07470892B2
公开(公告)日：2008-12-30
申请号：US10598450
申请日：2004-08-05
申请人： Yoichi Ohmura , Toru Oka , Hajime Nakajima
发明人： Yoichi Ohmura , Toru Oka , Hajime Nakajima
IPC分类号： H01J3/14
CPC分类号： G01D5/38
摘要： An optical encoder includes an incoherent light source; a first grating, which is an amplitude grating having a first grating period, for spatial amplitude modulation of the incoherent light from the light source; a second grating, which is a phase grating having a second grating period, for spatial phase modulation of light from the first grating; a third grating, which is an amplitude grating having a third grating period, for spatial amplitude modulation of light from the second grating; and a light detecting element for detecting light from the third grating. The encoder detects relative displacement between the respective gratings. The optical transfer function from the light source to the light detecting element is enhanced, and the efficiency in utilizing light is improved.
摘要翻译：光学编码器包括非相干光源; 第一光栅，其是具有第一光栅周期的幅度光栅，用于来自光源的非相干光的空间幅度调制; 第二光栅，其是具有第二光栅周期的相位光栅，用于来自第一光栅的光的空间相位调制; 第三光栅，其是具有第三光栅周期的幅度光栅，用于来自第二光栅的光的空间幅度调制; 以及用于检测来自第三光栅的光的光检测元件。编码器检测各个光栅之间的相对位移。提高了从光源到光检测元件的光传递函数，提高了利用光的效率。

5. 发明申请

US20070034786A1 Optical encoder 有权
标题翻译：光学编码器
公开(公告)号：US20070034786A1
公开(公告)日：2007-02-15
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 , G01D5/38
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。

6. 发明授权

US06972402B2 Photoelectric rotary encoder 有权
标题翻译：光电旋转编码器
公开(公告)号：US06972402B2
公开(公告)日：2005-12-06
申请号：US10448423
申请日：2003-05-30
申请人： Yoichi Ohmura , Toru Oka , Toshiro Nakashima , Hajime Nakajima , Hirokazu Sakuma , Takashi Okamuro , Masahiko Sakamoto , Koichi Sugimoto
发明人： Yoichi Ohmura , Toru Oka , Toshiro Nakashima , Hajime Nakajima , Hirokazu Sakuma , Takashi Okamuro , Masahiko Sakamoto , Koichi Sugimoto
IPC分类号： G01D5/34
CPC分类号： G01D5/342
摘要： A photoelectric rotary encoder includes a light source that emits a light beam, a returning section that returns the emitted light beam to a direction opposite to an emitting direction of the beam, and a photodetector that is disposed on a substrate on which the light source is disposed and that detects the returned light beam via a disk having a detection pattern section. The photoelectric rotary encoder detects rotational displacement of the disk based on the detected returned light beam. In this photoelectric rotary encoder, an optical element that lets a stray beam component of the light beam from the light source escape via a side surface of the optical element, is disposed in front of the substrate on which the light source and the photodetector are disposed. The optical element covers the substrate and integrates the optical element and the substrate.
摘要翻译：光电旋转编码器包括发射光束的光源，将发射光束返回到与光束的发射方向相反的方向的返回部分;以及光电检测器，其设置在基板上，光源为并且经由具有检测图案部分的盘检测返回的光束。光电旋转编码器基于检测到的返回光束检测盘的旋转位移。在该光电式旋转编码器中，将光源的光束成分从光源经由光学元件的侧面排出的光学元件设置在其上配置有光源和光电检测器的基板的前方。光学元件覆盖基板并且对光学元件和基板进行积分。

7. 发明申请

US20070187581A1 Optical encoder 有权
标题翻译：光学编码器
公开(公告)号：US20070187581A1
公开(公告)日：2007-08-16
申请号：US10598450
申请日：2004-08-05
申请人： Yoichi Ohmura , Toru Oka , Hajime Nakajima
发明人： Yoichi Ohmura , Toru Oka , Hajime Nakajima
IPC分类号： G01D5/34 , G01D5/36
CPC分类号： G01D5/38
摘要： An optical encoder includes an incoherent light source; a first grating, which is an amplitude grating having a first grating period, for spatial amplitude modulation of the incoherent light from the light source; a second grating, which is a phase grating having a second grating period, for spatial phase modulation of light from the first grating; a third grating, which is an amplitude grating having a third grating period, for spatial amplitude modulation of light from the second grating; and a light detecting element for detecting lights from the third grating. The encoder detects relative displacement between the respective gratings. The optical transfer function from the light source to the light detecting element is enhanced, and the efficiency in utilizing light is improved.
摘要翻译：光学编码器包括非相干光源; 第一光栅，其是具有第一光栅周期的幅度光栅，用于来自光源的非相干光的空间幅度调制; 第二光栅，其是具有第二光栅周期的相位光栅，用于来自第一光栅的光的空间相位调制; 第三光栅，其是具有第三光栅周期的幅度光栅，用于来自第二光栅的光的空间幅度调制; 以及用于检测来自第三光栅的光的光检测元件。编码器检测各个光栅之间的相对位移。提高了从光源到光检测元件的光传递函数，提高了利用光的效率。

8. 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。

9. 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。

10. 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。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式