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公开(公告)号：US06631788B2
公开(公告)日：2003-10-14
申请号：US10094993
申请日：2002-03-12
申请人： Masahiro Shikai , Hajime Nakajima , Toshiro Nakashima , Kazuo Takashima , Tatsushi Takahashi , Shigeki Yamakawa , Takeshi Fujiki , Kunikazu Koura , Koichi Nanno , Shigeru Abe
发明人： Masahiro Shikai , Hajime Nakajima , Toshiro Nakashima , Kazuo Takashima , Tatsushi Takahashi , Shigeki Yamakawa , Takeshi Fujiki , Kunikazu Koura , Koichi Nanno , Shigeru Abe
IPC分类号： B66B1314
CPC分类号： B66B13/26
摘要： An elevator system has a pair of horizontally opposed vertical surfaces defining therebetween a doorway or opening to an elevator cage and a door moving horizontally to open and close the opening. In particular, the system has a first optical device having a light emitter for emitting light and a second optical device having a light receiver for receiving the light emitted from the light emitter. The first and second optical devices are positioned in a vertical plane crossing the opening and adjacent to the opening. One of the first and second optical devices is positioned below the other of the first and second optical devices and mounted in the vertical surface.
摘要翻译： 电梯系统具有一对水平相对的垂直表面，在它们之间限定了电梯轿厢的门口或开口以及水平移动以打开和关闭开口的门。 特别地，该系统具有第一光学装置，其具有用于发光的光发射器和具有用于接收从发光体发射的光的光接收器的第二光学装置。 第一和第二光学装置定位在与开口相交并且与开口相邻的垂直平面中。 第一和第二光学器件中的一个位于第一和第二光学器件的另一个下方并且安装在垂直表面中。
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公开(公告)号：US6054938A
公开(公告)日：2000-04-25
申请号：US21271
申请日：1998-02-10
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。
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3.发明授权Sliding door system with optical detector for safe door opening and closing 有权具有光学检测器的滑动门系统，用于安全门打开和关闭公开(公告)号：US06962239B2
公开(公告)日：2005-11-08
申请号：US10430223
申请日：2003-05-07
CPC分类号： B66B13/26
摘要： A sliding door system has a pair of horizontally opposed vertical surfaces defining therebetween an opening, an upper horizontal surface connecting uppermost ends of the vertical surfaces, a lower horizontal surface connecting lowermost ends of the vertical surfaces, and a door moving horizontally to open and close the opening. The sliding door system also includes a first optical device having a light emitter for emitting light, a second optical device having a light detector for detecting the light, and a light reflector for reflecting the light emitted from the light emitter to the light receiver. The light reflector is positioned in at least one of the horizontally opposed vertical surfaces. The first and second optical devices are positioned in the upper horizontal surface.
摘要翻译： 滑门系统具有一对水平相对的垂直表面，在其间限定开口，连接垂直表面的最上端的上水平表面，连接垂直表面的最下端的下水平表面和水平移动以打开和关闭的门 开幕。 滑动门系统还包括具有用于发光的光发射器的第一光学装置，具有用于检测光的光检测器的第二光学装置和用于将从发光体发射的光反射到光接收器的光反射器。 光反射器位于水平相对的垂直表面中的至少一个中。 第一和第二光学装置位于上部水平表面中。
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公开(公告)号：US20060072796A1
公开(公告)日：2006-04-06
申请号：US11239476
申请日：2005-09-30
IPC分类号： G06K9/00
CPC分类号： G06K9/00033 , G06K2009/0006 , G06K2009/00932
摘要： A fingerprint image pickup device includes a light source that emits a light for transmission through a fingertip portion having a fingerprint to be photographed, an image pickup unit that picks up the light from the light source and transmitted through the subject to acquire a fingerprint image in which convex and concave parts of the fingerprint are dark and bright, respectively, and an optical system that images the light transmitted through the fingertip portion on the image pickup unit. The optical system is arranged so that a distal side of the fingertip portion is tilted at a predetermined angle, farther away from the optical system thank an opposite sides with reference to a position at which a ventral side of the fingertip portion contacts a face orthogonal to an optical axis of the optical system.
摘要翻译： 指纹图像拾取装置包括发射用于通过具有要拍摄的指纹的指尖部分进行透射的光的光源;摄像单元，其拾取来自光源并透射通过被摄体的光，以获取指纹图像 指纹的哪个凸部和凹部分别是暗的和明亮的，以及一个光学系统，其将透过指尖部分的光成像在摄像单元上。 光学系统被布置成使得指尖部分的远侧以预定角度倾斜，远离光学系统感谢相对侧的指尖部分的腹侧接触与正面相对的面的位置 光学系统的光轴。
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公开(公告)号：US07574023B2
公开(公告)日：2009-08-11
申请号：US11239476
申请日：2005-09-30
IPC分类号： G06K9/00
CPC分类号： G06K9/00033 , G06K2009/0006 , G06K2009/00932
摘要： A fingerprint image pickup device includes a light source that emits a light for transmission through a fingertip portion having a fingerprint to be photographed, an image pickup unit that picks up the light from the light source and transmitted through the subject to acquire a fingerprint image in which convex and concave parts of the fingerprint are dark and bright, respectively, and an optical system that images the light transmitted through the fingertip portion on the image pickup unit. The optical system is arranged so that a distal side of the fingertip portion is tilted, at a predetermined angle, farther away from the optical system than an opposite side, with reference to a position at which a ventral side of the fingertip portion contacts a face orthogonal to an optical axis of the optical system.
摘要翻译： 指纹图像拾取装置包括发射用于通过具有要拍摄的指纹的指尖部分进行透射的光的光源;摄像单元，其拾取来自光源并透射通过被摄体的光，以获取指纹图像 指纹的哪个凸部和凹部分别是暗的和明亮的，以及一个光学系统，其将透过指尖部分的光成像在摄像单元上。 光学系统被布置为使得指尖部分的远端相对于指尖部分的腹侧接触面的位置以比相对侧更远离光学系统倾斜预定角度 与光学系统的光轴正交。
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公开(公告)号：US20060072795A1
公开(公告)日：2006-04-06
申请号：US11239463
申请日：2005-09-30
IPC分类号： G06K9/00
CPC分类号： G06K9/00919 , G06K9/00033 , G06K2009/0006 , G06K2009/00932
摘要： A fingerprint image pickup device includes a light source that emits light for transmission through a fingertip portion having a fingerprint to be photographed, an image pickup unit that picks up the light from the light source and transmitted through the fingertip portion and acquires a fingerprint image in which a convex part of the fingerprint is dark and a concave part of the fingerprint is bright, and an optical system that images the light transmitted through the fingertip portion from the light source on the image pickup unit. The light from the light source illuminates a portion other than a nail of the fingertip portion, and the light has a center of illumination on a center line, in a width direction of a face where the nail of the fingertip portions is present, and on a skin side of a border of the nail and skin of the fingertip portion.
摘要翻译： 指纹图像拾取装置包括：光源，其通过具有要拍摄的指纹的指尖部分发射光;摄像单元，其拾取来自光源并通过指尖部分传输的光并获取指纹图像; 指纹的凸部是暗的，指纹的凹部是亮的，以及一个光学系统，其通过指尖部分从光源在图像拾取单元上成像。 来自光源的光照射指尖部分以外的部分，并且光在中心线上具有在指尖部分的指甲的面部的宽度方向上的照明中心， 指甲部分的指甲和皮肤边界的皮肤侧面。
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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。
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8.发明授权Optical encoder having a single signal track and an optical detecting part with sine and cosine signals 有权具有单个信号轨道的光学编码器和具有正弦和余弦信号的光学检测部分公开(公告)号：US08415610B2
公开(公告)日：2013-04-09
申请号：US12990508
申请日：2009-06-03
申请人： Hajime Nakajima , Takuya Noguchi , Takeshi Musha , Youichi Omura , Toshiro Nakashima , Tatsuya Nagatani , Takashi Iwamoto
发明人： Hajime Nakajima , Takuya Noguchi , Takeshi Musha , Youichi Omura , Toshiro Nakashima , Tatsuya Nagatani , Takashi Iwamoto
IPC分类号： G01D5/34
CPC分类号： G01D5/347 , G01D5/3473
摘要： Present invention provides an optical encoder capable of improving the precision of an interpolation angle in a single signal track, in an encoder of sine-wave angle interpolation type. The optical encoder includes a waveform, in which a phase-modulated wave is superimposed in a predetermined period over a sine-wave of a fundamental period, as a signal track (103), and an optical detector (104) for extracting the sine signal and the cosine signal of the phase-modulated wave. An operation unit (106) operates electric angles individually from the output signals of a first optical detector pair and a second optical detector pair belonging to the optical detector, and determines the sum and difference of the electric angles, thereby acquiring the electric angle and the phase-modulated wave of the fundamental period.
摘要翻译： 本发明提供了一种在正弦波角插值类型的编码器中能够提高单个信号轨道内插角的精度的光学编码器。 光学编码器包括波形，其中在基本周期的正弦波上以预定周期叠加相位调制波作为信号轨道（103），以及用于提取正弦信号的光学检测器（104） 和相位调制波的余弦信号。 操作单元（106）从属于光检测器的第一光检测器对和第二光检测器对的输出信号分别操作电角度，并且确定电角度的和差，从而获得电角度和 基波周期的相位调制波。
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公开(公告)号：US20110049341A1
公开(公告)日：2011-03-03
申请号：US12990508
申请日：2009-06-03
申请人： Hajime Nakajima , Takuya Noguchi , Takeshi Musha , Youichi Omura , Toshiro Nakashima , Tatsuya Nagatani , Takashi Iwamoto
发明人： Hajime Nakajima , Takuya Noguchi , Takeshi Musha , Youichi Omura , Toshiro Nakashima , Tatsuya Nagatani , Takashi Iwamoto
IPC分类号： G01D5/347
CPC分类号： G01D5/347 , G01D5/3473
摘要： Present invention provides an optical encoder capable of improving the precision of an interpolation angle in a single signal track, in an encoder of sine-wave angle interpolation type. The optical encoder includes a waveform, in which a phase-modulated wave is superimposed in a predetermined period over a sine-wave of a fundamental period, as a signal track (103), and an optical detector (104) for extracting the sine signal and the cosine signal of the phase-modulated wave. An operation unit (106) operates electric angles individually from the output signals of a first optical detector pair and a second optical detector pair belonging to the optical detector, and determines the sum and difference of the electric angles, thereby acquiring the electric angle and the phase-modulated wave of the fundamental period.
摘要翻译： 本发明提供了一种在正弦波角插值类型的编码器中能够提高单个信号轨道内插角的精度的光学编码器。 光学编码器包括波形，其中在基本周期的正弦波上以预定周期叠加相位调制波作为信号轨道（103），以及用于提取正弦信号的光学检测器（104） 和相位调制波的余弦信号。 操作单元（106）从属于光检测器的第一光检测器对和第二光检测器对的输出信号分别操作电角度，并且确定电角度的和差，从而获得电角度和 基波周期的相位调制波。
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公开(公告)号：US06351312B1
公开(公告)日：2002-02-26
申请号：US09463221
申请日：2000-02-08
IPC分类号： G01B902
CPC分类号： G01B9/0207 , G01B9/02002 , G01B2290/45
摘要： An interference-type distance measuring device generates a reference beam having a first frequency and detection beam having a second frequency and directs these beams toward a moving detection unit which reflects these beams toward an interference system, where these beams are used to generate a detection interference wave. A reference interference wave generated by the interference system is converted into a first sine-wave signal, the interference detection wave is converted into a second sine-wave signal, first and second cosine-wave signals are generated from the first and second sine-wave signals, and the position of the motion detection unit is detected based upon these four signals.
摘要翻译： 干涉型距离测量装置产生具有第一频率的参考光束和具有第二频率的检测光束，并将这些光束引向朝向干涉系统反射这些光束的移动检测单元，其中这些光束用于产生检测干扰 波。 由干扰系统产生的参考干扰波转换为第一正弦波信号，将干扰检测波转换为第二正弦波信号，从第一和第二正弦波产生第一和第二余弦波信号 信号，并且基于这四个信号检测运动检测单元的位置。
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