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1. 发明申请

US20050041980A1 Wireless optical system 审中-公开
标题翻译：无线光学系统
公开(公告)号：US20050041980A1
公开(公告)日：2005-02-24
申请号：US10784869
申请日：2004-02-24
申请人： Kiichi Ueyanagi , Yukio Adachi , Yasuji Seko , Hiroyuki Hotta , Takashi Ozawa
发明人： Kiichi Ueyanagi , Yukio Adachi , Yasuji Seko , Hiroyuki Hotta , Takashi Ozawa
IPC分类号： H04B10/10 , H04B10/00
CPC分类号： H04B10/1149
摘要： A master device and a slave device are each constituted of a transmitting section; a receiving section; and a control section including a three-dimensional position calculation section for calculating a three-dimensional position of the transmitting section of the counterpart master device or that of the counterpart slave device and an element drive section for driving an MEMS element. First, the master device outputs transmission light having comparatively narrow directivity, and the transmission light is two-dimensionally scanned. Next, the receiving section of the slave device receives that transmission light, calculates the transmission direction of the master device from the position of a spot of transmitted light on a light-detecting element array, and transmits the transmission light in that direction. At this point in time, scanning of the transmission light from the master device is stopped, and subsequently communication is initiated.
摘要翻译：主设备和从设备各自由发送部分构成; 接收部分; 以及控制部分，包括用于计算对方主装置的发送部分或对方从装置的发送部分的三维位置的三维位置计算部分和用于驱动MEMS元件的元件驱动部分。首先，主装置输出具有较窄方向性的传输光，并且透射光被二维扫描。接下来，从设备的接收部分接收该传输光，从光检测元件阵列上的发射光点的位置计算主设备的传输方向，并沿该方向传输传输光。在这个时间点上，停止从主设备的传输光的扫描，随后开始通信。

2. 发明授权

US5253265A Semiconductor laser device 失效
标题翻译：半导体激光器件
公开(公告)号：US5253265A
公开(公告)日：1993-10-12
申请号：US832053
申请日：1992-02-06
申请人： Yasuji Seko , Kiichi Ueyanagi , Hideo Nakayama , Hideki Fukunaga , Nobuaki Ueki
发明人： Yasuji Seko , Kiichi Ueyanagi , Hideo Nakayama , Hideki Fukunaga , Nobuaki Ueki
IPC分类号： H01S5/00 , H01S5/20 , H01S5/343 , H01S3/19
CPC分类号： H01S5/34313 , B82Y20/00 , H01S5/2059 , H01S5/3432
摘要： A semiconductor laser device having an active layer which is comprised of a quantum well layer formed of a mixed crystal material, and barrier layers provided on both sides of the quantum well layer in such a manner as to sandwich the same, is characterized in that Ge is thermally diffused in a portion of the active layer to disorder the quantum well layer and the barrier layers at that portion so as to form a non-light-emitting area with a low refractive index, while the quantum well layer and the barrier layers at a portion where Ge is not diffused is formed as a refractive index waveguide which is a light-emitting area.
摘要翻译：具有由混合晶体材料形成的量子阱层的有源层和以夹着该量子阱层的方式设置在量子阱层的两侧的势垒层的半导体激光器件的特征在于Ge 在有源层的一部分中热扩散以使该部分处的量子阱层和阻挡层紊乱，以便形成具有低折射率的非发光区域，而量子阱层和阻挡层在 Ge不被扩散的部分形成为作为发光区域的折射率波导管。

3. 发明授权

US5491709A Semiconductor laser device 失效
标题翻译：半导体激光器件
公开(公告)号：US5491709A
公开(公告)日：1996-02-13
申请号：US106700
申请日：1993-08-16
申请人： Yasuji Seko , Hiromi Otoma , Nobuaki Ueki , Hideki Fukunaga , Hideo Nakayama , Kiichi Ueyanagi , Yasuhiro Shiraki
发明人： Yasuji Seko , Hiromi Otoma , Nobuaki Ueki , Hideki Fukunaga , Hideo Nakayama , Kiichi Ueyanagi , Yasuhiro Shiraki
IPC分类号： H01S5/00 , H01S5/042 , H01S5/20 , H01S5/32 , H01S5/323 , H01S5/34 , H01S5/343 , H01S3/19
CPC分类号： B82Y20/00 , H01S5/32325 , H01S5/34326 , H01S5/2009 , H01S5/3211 , H01S5/3406 , H01S5/3407
摘要： In a semiconductor laser device according to the invention, a clad layer includes first clad layers, each of which has a greater band gap than an active layer and has a thickness of 0.003 to 0.3 .mu.m, and second clad layers each of which has a lower refractive index than the active layer, and the first clad layers are disposed nearer to the active layer than the second clad layers, respectively. In this structure, the first clad layers confine carriers in the active layer while the second clad layers confine the light in the active layer. Since each of the first clad layers is formed of a thin film, the carriers are hard to move outwardly from the active layer due to the tunnel phenomenon thereof and, even if the lattice constant thereof is slightly different, the first clad layer can be lattice matched to a substrate. For this reason, the materials of the second clad layers can be selected without taking into consideration the size of the band gap thereof. This makes it possible to reduce the oscillation threshold value current density of the laser as well as to improve the temperature characteristic of the laser.
摘要翻译：在根据本发明的半导体激光器件中，包覆层包括第一覆盖层，其每一个具有比有源层更大的带隙，并且具有0.003至0.3μm的厚度，以及第二覆盖层具有比有源层低的折射率，并且第一包层分别设置成比第二包层更靠近有源层。在该结构中，第一覆盖层将载流子限制在有源层中，而第二覆盖层将光限制在有源层中。由于每个第一包层由薄膜形成，所以载流子由于其隧道现象而难以从有源层向外移动，并且即使其晶格常数稍微不同，第一覆层可以是晶格与底物匹配。为此，可以选择第二包层的材料而不考虑其带隙的尺寸。这使得可以减小激光器的振荡阈值电流密度以及提高激光器的温度特性。

4. 发明授权

US5425041A Multiquantum barrier laser having high electron and hole reflectivity of layers 失效
标题翻译：具有高层电子和空穴反射率的多电极势垒激光器
公开(公告)号：US5425041A
公开(公告)日：1995-06-13
申请号：US214235
申请日：1994-03-17
申请人： Yasuji Seko , Kiichi Ueyanagi , Yasuhiro Shiraki
发明人： Yasuji Seko , Kiichi Ueyanagi , Yasuhiro Shiraki
IPC分类号： H01S5/00 , H01S5/20 , H01S5/343 , H01S3/19
CPC分类号： B82Y20/00 , H01S5/20 , H01S5/2013 , H01S5/34326
摘要： It is an object of the present invention to provide a highly efficient semiconductor laser unit having excellent temperature characteristics, in which electrons or holes are suppressed from overflowing from the active layer to the cladding layers while the threshold of current density is maintained low. The present invention is to provide a semiconductor laser unit fundamentally composed of an active layer and cladding layers in which the active layer is interposed between the cladding layers the semiconductor laser unit comprising: a multiquantum barrier layer including well layers and barrier layers disposed between the active layer and the cladding layers or disposed in the cladding layers close to the active layer, wherein the well and barrier layers have a high reflectivity with respect to the electrons and holes at a position close to .GAMMA.-point in the reciprocal lattice space, and also the well and barrier layers have a high reflectivity with respect to the electrons and holes at a position close to at least one of the primary symmetrical points.
摘要翻译：本发明的目的是提供一种具有优异的温度特性的高效半导体激光器单元，其中电子或空穴被抑制从有源层溢出到包覆层，同时电流密度的阈值保持较低。本发明提供一种半导体激光器单元，其主要由有源层和包层组成，其中有源层介于包层之间，半导体激光单元包括：多量级阻挡层，包括阱层和位于活性层之间的势垒层层和包层，或者设置在靠近有源层的包覆层中，其中阱和势垒层相对于在互易格子空间中靠近GAMMA-point的位置处的电子和空穴具有高反射率，并且还阱和阻挡层相对于接近至少一个主要对称点的位置处的电子和空穴具有高反射率。

5. 发明授权

US08170329B2 Position measuring system, position measuring method and computer readable medium 有权
标题翻译：位置测量系统，位置测量方法和计算机可读介质
公开(公告)号：US08170329B2
公开(公告)日：2012-05-01
申请号：US12398268
申请日：2009-03-05
申请人： Yasuji Seko , Hiroyuki Hotta , Yasuyuki Saguchi
发明人： Yasuji Seko , Hiroyuki Hotta , Yasuyuki Saguchi
IPC分类号： G06K9/00
CPC分类号： G06K9/3216 , G06T7/73 , G06T2207/30204 , G06T2207/30208
摘要： A position measuring system includes: an image capturing unit that captures reference points provided on an object, the reference points composed of at least four first reference points provided respectively at vertices of a polygon or at vertices and a barycenter of a polygon and at least one second reference point provided so as to have a specific positional relationship with respect to the first reference points; an identification unit that identifies images of the first reference points and the second reference point captured by the image capturing unit, on the basis of positional relationships between the images of the first reference points and the second reference point; and a calculation unit that calculates a three-dimensional position and three-axial angles of the object on the basis of positional relationships of the images of the first reference points identified by the identification unit.
摘要翻译：位置测量系统包括：图像捕获单元，其捕获设置在对象上的参考点，所述参考点由至少四个第一参考点组成，所述至少四个第一参考点分别设置在多边形的顶点或多边形的顶点和重心处，并且至少一个第二参考点被设置为具有相对于第一参考点的特定位置关系; 识别单元，基于第一参考点和第二参考点的图像之间的位置关系来识别由图像捕获单元捕获的第一参考点和第二参考点的图像; 以及计算单元，其基于由识别单元识别的第一参考点的图像的位置关系来计算对象的三维位置和三角度。

6. 发明授权

US07009713B2 Optical position measuring system using an interference pattern 失效
标题翻译：光学位置测量系统采用干涉图案
公开(公告)号：US07009713B2
公开(公告)日：2006-03-07
申请号：US10426632
申请日：2003-05-01
申请人： Yasuji Seko , Hiroyuki Hotta
发明人： Yasuji Seko , Hiroyuki Hotta
IPC分类号： G01B9/02
CPC分类号： G06F3/03545 , G01B9/02097 , G01B11/002 , G06F3/0304 , G06F3/0346 , G06K9/224
摘要： A position measuring system including a laser light source for radiating a laser beam, an optical lens system for generating an interference pattern on the basis of the laser beam having passed through different optical paths, a detector for detecting the interference pattern, and an arithmetic unit for calculating the position of at least one of the light source and the detector on the basis of a detection signal issued from the detector. For example, a spherical lens can be used as the optical lens system. In this case, the interference pattern is formed on the basis of spherical aberration of the lens. Alternatively, a multifocal lens may be used as the optical lens system.
摘要翻译：一种位置测量系统，包括用于照射激光束的激光源，基于通过不同光路的激光束产生干涉图案的光学透镜系统，用于检测干涉图案的检测器和运算单元用于基于从检测器发出的检测信号来计算光源和检测器中的至少一个的位置。例如，可以使用球面透镜作为光学透镜系统。在这种情况下，基于透镜的球面像差形成干涉图案。或者，可以使用多焦点透镜作为光学透镜系统。

7. 发明申请

US20090070065A1 POSITION MEASUREMENT SYSTEM, POSITION MEASUREMENT METHOD AND COMPUTER READABLE MEDIUM 有权
标题翻译：位置测量系统，位置测量方法和计算机可读介质
公开(公告)号：US20090070065A1
公开(公告)日：2009-03-12
申请号：US12099576
申请日：2008-04-08
申请人： Yasuji Seko , Hiroyuki Hotta , Yasuyuki Saguchi
发明人： Yasuji Seko , Hiroyuki Hotta , Yasuyuki Saguchi
IPC分类号： G06F15/00
CPC分类号： G01B11/005 , G01B11/26
摘要： The position measurement system includes: an image capturing unit capturing first reference points which are three reference points on a plane arranged on a target and whose positional relation with each other is specified, and a second reference point which is a single reference point at a distance away from the plane and whose positional relation with the first reference points is specified; an identifying unit identifying images of the first and second reference points based on the positional relation among the images; and a calculating unit calculating a three-dimensional position and triaxial angles of the target based on the positional relation between the images of the first and second reference points. The calculating unit specifies the plane including the first reference points on the target from the images of the first reference points and a normal direction of the plane according to the image of the second reference point.
摘要翻译：位置测量系统包括：摄像单元，其捕获作为在目标上布置的平面上的三个参考点和指定了彼此的位置关系的第一参考点，以及作为距离的单个参考点的第二参考点指定与第一参考点的位置关系; 识别单元，基于图像之间的位置关系识别第一和第二参考点的图像; 以及计算单元，基于第一和第二参考点的图像之间的位置关系来计算目标的三维位置和三轴角度。计算单元根据第二参考点的图像从第一参考点的图像和平面的法线方向指定包括目标上的第一参考点的平面。

8. 发明授权

US07742895B2 Position measurement system, position measurement method and computer readable medium 有权
标题翻译：位置测量系统，位置测量方法和计算机可读介质
公开(公告)号：US07742895B2
公开(公告)日：2010-06-22
申请号：US12099576
申请日：2008-04-08
申请人： Yasuji Seko , Hiroyuki Hotta , Yasuyuki Saguchi
发明人： Yasuji Seko , Hiroyuki Hotta , Yasuyuki Saguchi
IPC分类号： G01C9/00
CPC分类号： G01B11/005 , G01B11/26
摘要： The position measurement system includes: an image capturing unit capturing first reference points which are three reference points on a plane arranged on a target and whose positional relation with each other is specified, and a second reference point which is a single reference point at a distance away from the plane and whose positional relation with the first reference points is specified; an identifying unit identifying images of the first and second reference points based on the positional relation among the images; and a calculating unit calculating a three-dimensional position and triaxial angles of the target based on the positional relation between the images of the first and second reference points. The calculating unit specifies the plane including the first reference points on the target from the images of the first reference points and a normal direction of the plane according to the image of the second reference point.
摘要翻译：位置测量系统包括：摄像单元，其捕获作为在目标上布置的平面上的三个参考点和指定了彼此的位置关系的第一参考点，以及作为距离的单个参考点的第二参考点指定与第一参考点的位置关系; 识别单元，基于图像之间的位置关系识别第一和第二参考点的图像; 以及计算单元，基于第一和第二参考点的图像之间的位置关系来计算目标的三维位置和三轴角度。计算单元根据第二参考点的图像从第一参考点的图像和平面的法线方向指定包括目标上的第一参考点的平面。

9. 发明申请

US20100231709A1 POSITION MEASUREMENT SYSTEM, POSITION MEASUREMENT METHOD AND COMPUTER-READABLE MEDIUM 审中-公开
标题翻译：位置测量系统，位置测量方法和计算机可读介质
公开(公告)号：US20100231709A1
公开(公告)日：2010-09-16
申请号：US12545781
申请日：2009-08-21
申请人： Yasuji Seko , Hiroyuki Hotta , Yasuyuki Saguchi
发明人： Yasuji Seko , Hiroyuki Hotta , Yasuyuki Saguchi
IPC分类号： H04N7/18
CPC分类号： G01B11/03
摘要： A position measurement system includes a marker set attached to an object, a camera and a computing apparatus. The marker set includes three or more directed basic markers each having a shape indicating a direction. The directed basic markers are oriented in directions toward a specific point. A positional relationship among the directed basic markers is known. The camera includes a two-dimensional imaging device configured to take an image of the marker set. The computing apparatus computes at least one of a position of the object and an angle of the object based on an image, taken by the camera, of the directed basic markers, which are oriented in the directions toward the specific point.
摘要翻译：位置测量系统包括附接到物体的标记组，相机和计算装置。标记组包括三个或更多个指向基本标记，每一个具有指示方向的形状。有针对性的基本标记朝向特定点的方向。有针对性的基本标记之间的位置关系是已知的。相机包括被配置为拍摄标记集的图像的二维成像装置。计算装置基于相机取得的图像，基于朝向特定点的方向定向的定向基本标记来计算物体的位置和物体的角度中的至少一个。

10. 发明授权

US06985236B2 Position measurement system 失效
标题翻译：位置测量系统
公开(公告)号：US06985236B2
公开(公告)日：2006-01-10
申请号：US10660582
申请日：2003-09-12
申请人： Yasuji Seko , Kazumasa Murai , Jun Miyazaki , Hiroyuki Hotta
发明人： Yasuji Seko , Kazumasa Murai , Jun Miyazaki , Hiroyuki Hotta
IPC分类号： G01B9/02
CPC分类号： G01B11/002
摘要： A position measurement system optically measures a position of an object in a simple manner at low cost. The position measurement system includes: a light source; an optical lens with a large spherical aberration which transmits light from the light source and forms a light ring due to its spherical aberration; a light receiving device (CCD sensor) which detects the light ring as formed by the optical lens; and a calculator which measures a position of the light source according to detected information on the light ring as detected by the CCD sensor. An optical mirror with a large spherical aberration may be used instead of the optical lens.
摘要翻译：位置测量系统以简单的方式以低成本光学地测量物体的位置。位置测量系统包括：光源; 具有大球面像差的光学透镜，其透射来自光源的光并由于其球面像差而形成光环; 检测由光学透镜形成的光环的光接收装置（CCD传感器）; 以及计算器，其根据由CCD传感器检测到的光环上的检测信息来测量光源的位置。可以使用具有大球面像差的光学镜来代替光学透镜。

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