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公开(公告)号：US07045770B2
公开(公告)日：2006-05-16
申请号：US11216900
申请日：2005-08-30
申请人： Masahiko Igaki , Akio Atsuta
发明人： Masahiko Igaki , Akio Atsuta
IPC分类号： G01J5/34
CPC分类号： G01D5/38 , G01D5/34715
摘要： A divergent light beam from a light source unit having a plurality of light-emitting regions is almost contained within the surface of a reflecting body that is an array of micro roof mirrors/roof prisms disposed in a regular manner. The light beam emitted from the light source unit with an angle of divergence is reflected by the reflecting body and is almost converged on a light-receiving surface. As a result, there is increased the ray density of a light beam on the light-receiving surface.
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公开(公告)号：US06975408B2
公开(公告)日：2005-12-13
申请号：US10081626
申请日：2002-02-20
申请人： Masahiko Igaki , Akio Atsuta
发明人： Masahiko Igaki , Akio Atsuta
CPC分类号： G01D5/36
摘要： This invention realizes a detection system which serves as a displacement measurement apparatus for optically detecting a relative position, improves the use efficiency of a light amount, and is resistant to mechanical variations. More specifically, in an optical sensor having a light source, a reflector for reflecting a divergent light beam from the light source, and a light-receiving portion for receiving a reflected light beam from the reflector. The reflector has an optical characteristic that a divergent light beam from the light source is wavefront-split into a plurality of beams and the respective split light beams are overlaid at a predetermined position.
摘要翻译： 本发明实现了一种检测系统，其用作用于光学检测相对位置的位移测量装置，提高光量的使用效率，并且抵抗机械变化。 更具体地，在具有光源的光学传感器中，用于反射来自光源的发散光束的反射器和用于接收来自反射器的反射光束的光接收部分。 反射器具有光学特性，即来自光源的发散光束被波前分割为多个光束，并且相应的分割光束被覆盖在预定位置。
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公开(公告)号：US20090050794A1
公开(公告)日：2009-02-26
申请号：US12193208
申请日：2008-08-18
申请人： Akio Atsuta , Masahiko Igaki
发明人： Akio Atsuta , Masahiko Igaki
IPC分类号： G01D5/34
CPC分类号： G01D5/34707 , G01D5/2457
摘要： An optical encoder equipped with an origin detection apparatus has a scale provided with an optical grating, a plurality of light receiving elements that is provided in association with the pitch of the optical grating and movable relative to the scale and a light source that illuminates the light receiving elements with light through the scale. An optically discontinuous portion is provided in the optical grating of the scale, a change of a light beam that occurs over a certain length of section at the time when a light beam corresponding to the discontinuous portion is incident on the light receiving elements, a change occurring in that section is detected, calculation is performed, and an origin position is detected from the result of the calculation.
摘要翻译： 配备有原点检测装置的光学编码器具有设置有光栅的刻度，多个光接收元件，其与光栅的间距相关联并相对于刻度尺可移动;以及光源，其照亮光 接收光线通过刻度的元件。 光刻不连续部分设置在刻度的光栅中，当对应于不连续部分的光束入射到光接收元件上时，在一定长度的部分上发生的光束的变化，变化 检测到该部分发生的情况，进行计算，并根据计算结果检测原点位置。
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公开(公告)号：US20080073493A1
公开(公告)日：2008-03-27
申请号：US11854941
申请日：2007-09-13
申请人： Akio Atsuta , Masahiko Igaki
发明人： Akio Atsuta , Masahiko Igaki
IPC分类号： G01D5/34
CPC分类号： G01D5/34707 , G01D5/2457
摘要： An optical encoder equipped with an origin detection apparatus has a scale provided with an optical grating, a plurality of light receiving elements that is provided in association with the pitch of the optical grating and movable relative to the scale and a light source that illuminates the light receiving elements with light through the scale. An optically discontinuous portion is provided in the optical grating of the scale, a change of a light beam that occurs over a certain length of section at the time when a light beam corresponding to the discontinuous portion is incident on the light receiving elements, a change occurring in that section is detected, calculation is performed, and an origin position is detected from the result of the calculation.
摘要翻译： 配备有原点检测装置的光学编码器具有设置有光栅的刻度，多个光接收元件，其与光栅的间距相关联并相对于刻度尺可移动;以及光源，其照亮光 接收光线通过刻度的元件。 光刻不连续部分设置在刻度的光栅中，当对应于不连续部分的光束入射到光接收元件上时，在一定长度的部分上发生的光束的变化，变化 检测到该部分发生的情况，进行计算，并根据计算结果检测原点位置。
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公开(公告)号：US20070018086A1
公开(公告)日：2007-01-25
申请号：US11535298
申请日：2006-09-26
申请人： Akio Atsuta , Masahiko Igaki
发明人： Akio Atsuta , Masahiko Igaki
IPC分类号： G01D5/34
CPC分类号： G01D5/347 , G01D5/34792
摘要： A main scale of an optical displacement measuring apparatus has slits arranged on it at regular intervals, a part of which is a missing slit that does not allow light to pass through used for detecting the original point. An index scale has four sets of windows formed on it. The four windows are arranged with mutual phase differences of ¼ P, where P is the pitch of the arrangement of the slits. When a part of the missing slit overlaps with the index scale, no light reaches to photodiodes from the missing slit and only a partial light flux passes through a window, so that the light quantity decreases. An original point signal associated with the missing slit can be obtained by adding up the outputs of all the photodiodes.
摘要翻译： 光学位移测量装置的主要尺度具有以规则的间隔布置在其上的狭缝，其一部分是不允许光通过的缺失狭缝，用于检测原始点。 索引刻度在其上形成四组窗口。 四个窗口以相互相位差为¼P排列，其中P为狭缝布置的间距。 当缺失的狭缝的一部分与折射率尺重叠时，没有光从缺失的狭缝到达光电二极管，并且仅部分光通量通过窗口，使得光量减小。 可以通过将所有光电二极管的输出相加来获得与缺失狭缝相关联的原始点信号。
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公开(公告)号：US07122785B2
公开(公告)日：2006-10-17
申请号：US11335983
申请日：2006-01-20
申请人： Masahiko Igaki , Akio Atsuta
发明人： Masahiko Igaki , Akio Atsuta
CPC分类号： G01D5/34738
摘要： A rotation information record surface of a rotary disk is disposed at an intermediate position between a fixing point of the rotary disk and a rotary shaft and a fixing position of a detection head, so that a stable gap can be obtained with a variation due to thermal expansion being reduced. In order to attain this, the fitting portion of the rotary disk is shaped to have a first fitting portion and a second fitting portion. The first fitting portion is provided for attaining satisfactory coaxiality, and the second fitting portion is adapted to form a clearance into which bonding means such as an adhesive is to be infused. With the above structure, an optimum detection position (i.e. an optimum gap position) would not be varied by a change in the ambient temperature.
摘要翻译： 旋转盘的旋转信息记录表面设置在旋转盘的固定点和旋转轴之间的中间位置以及检测头的固定位置，从而可以获得由于热量变化而产生的稳定的间隙 扩张减少。 为了达到这个目的，旋转盘的装配部分成形为具有第一装配部分和第二装配部分。 第一装配部分用于获得令人满意的同轴度，并且第二装配部分适于形成一个间隙，粘合装置例如粘合剂将被输入到该间隙中。 利用上述结构，通过环境温度的变化不会改变最佳检测位置（即最佳间隙位置）。
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公开(公告)号：US07099790B2
公开(公告)日：2006-08-29
申请号：US10968320
申请日：2004-10-18
申请人： Akio Atsuta , Masahiko Igaki
发明人： Akio Atsuta , Masahiko Igaki
IPC分类号： G06F19/00
CPC分类号： G01D5/24409
摘要： A sensor signal processor includes a scale having optically or magnetically fine divisions; a detection sensor that moves with respect to the scale and that is provided in association with the divisions of the scale; and a position detecting unit for calculating positional information by using a counter value of digital pulse signals generated from the outputs from the detection sensor and analog signals generated from the outputs from the detection sensor. The sensor signal processor yields the positional information by using both the digital pulse signals and the analog signals.
摘要翻译： 传感器信号处理器包括具有光学或磁性细分的刻度; 检测传感器，其相对于刻度尺移动并且与刻度尺的划分相关联地设置; 以及位置检测单元，用于通过使用从检测传感器的输出产生的数字脉冲信号的计数器值和从检测传感器的输出产生的模拟信号来计算位置信息。 传感器信号处理器通过使用数字脉冲信号和模拟信号来产生位置信息。
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公开(公告)号：US07026654B2
公开(公告)日：2006-04-11
申请号：US10406943
申请日：2003-04-03
申请人： Masahiko Igaki , Makoto Ogura , Akio Atsuta , Tadashi Kosaka
发明人： Masahiko Igaki , Makoto Ogura , Akio Atsuta , Tadashi Kosaka
CPC分类号： H01L31/02325 , H01L31/167 , H01L2224/48091 , H01L2224/48227 , H01L2924/1815 , H01L2924/3025 , H01L2924/00014 , H01L2924/00
摘要： To provide a package for an optical semiconductor having a light-emitting device and a light-receiving device in one package, in which a groove is provided between the light-emitting device and the light-receiving device to thereby avoid rays of light from the light-emitting device to directly enter the light-receiving device.
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公开(公告)号：US20050090998A1
公开(公告)日：2005-04-28
申请号：US10968320
申请日：2004-10-18
申请人： Akio Atsuta , Masahiko Igaki
发明人： Akio Atsuta , Masahiko Igaki
CPC分类号： G01D5/24409
摘要： A sensor signal processor includes a scale having optically or magnetically fine divisions; a detection sensor that moves with respect to the scale and that is provided in association with the divisions of the scale; and a position detecting unit for calculating positional information by using a counter value of digital pulse signals generated from the outputs from the detection sensor and analog signals generated from the outputs from the detection sensor. The sensor signal processor yields the positional information by using both the digital pulse signals and the analog signals.
摘要翻译： 传感器信号处理器包括具有光学或磁性细分的刻度; 检测传感器，其相对于刻度尺移动并且与刻度尺的划分相关联地设置; 以及位置检测单元，用于通过使用从检测传感器的输出产生的数字脉冲信号的计数器值和从检测传感器的输出产生的模拟信号来计算位置信息。 传感器信号处理器通过使用数字脉冲信号和模拟信号来产生位置信息。
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公开(公告)号：US07732757B2
公开(公告)日：2010-06-08
申请号：US12193208
申请日：2008-08-18
申请人： Akio Atsuta , Masahiko Igaki
发明人： Akio Atsuta , Masahiko Igaki
CPC分类号： G01D5/34707 , G01D5/2457
摘要： An optical encoder equipped with an origin detection apparatus has a scale provided with an optical grating, a plurality of light receiving elements that is provided in association with the pitch of the optical grating and movable relative to the scale and a light source that illuminates the light receiving elements with light through the scale. An optically discontinuous portion is provided in the optical grating of the scale, a change of a light beam that occurs over a certain length of section at the time when a light beam corresponding to the discontinuous portion is incident on the light receiving elements, a change occurring in that section is detected, calculation is performed, and an origin position is detected from the result of the calculation.
摘要翻译： 配备有原点检测装置的光学编码器具有设置有光栅的刻度，多个光接收元件，其与光栅的间距相关联并相对于刻度尺可移动;以及光源，其照亮光 接收光线通过刻度的元件。 光刻不连续部分设置在刻度的光栅中，当对应于不连续部分的光束入射到光接收元件上时，在一定长度的部分上发生的光束的变化，变化 检测到该部分发生的情况，进行计算，并根据计算结果检测原点位置。
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