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1.发明授权Optical encoder including scale having track and detection head for detecting the track 有权光学编码器包括具有用于检测轨道的轨道和检测头的刻度公开(公告)号：US09097560B2
公开(公告)日：2015-08-04
申请号：US13913025
申请日：2013-06-07
Applicant: MITUTOYO CORPORATION
Inventor： Kimitoshi Ono , Hiroaki Kawada
CPC classification number: G01D5/34715 , G01D5/34 , G02B7/02
Abstract: An optical encoder includes a detection head. The detection head includes an optical system including a lens including a pair of bosses integrally formed with the lens and disposed with an optical axis of the lens therebetween, and an aperture plate having a pair of reference-pin-insertion holes disposed with an aperture therebetween; a housing including a pair of attachment portions and having a pair of lens-boss-insertion holes and a pair of reference-pin-insertion holes disposed on a central symmetry plane; a lens holder having a pair of lens-boss-insertion holes and a pair of reference-pin-insertion holes disposed on the central symmetry plane; and a pair of reference pins for positioning the lens holder and the aperture plate relative to the housing. An optical axis of the optical system is adjusted with respect to the bosses and the reference pins.
Abstract translation: 光学编码器包括检测头。 检测头包括光学系统，该光学系统包括透镜，该透镜包括一对与该透镜一体形成的凸起并且设置在其间的透镜的光轴;以及孔板，其具有设置有孔径的一对基准销插入孔 ; 壳体，包括一对安装部分，并且具有一对透镜凸台插入孔和设置在中心对称平面上的一对基准销插入孔; 具有一对透镜凸台插入孔和设置在中心对称平面上的一对基准销插入孔的透镜架; 以及一对用于相对于壳体定位透镜保持器和孔板的参考销。 光学系统的光轴相对于凸台和参考销进行调整。
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公开(公告)号：US09329059B2
公开(公告)日：2016-05-03
申请号：US13767101
申请日：2013-02-14
Applicant: MITUTOYO CORPORATION
Inventor： Kenichi Hayashi , Hiroaki Kawada
CPC classification number: G01D5/34746 , G01D5/345
Abstract: A photoelectric encoder includes an irradiation unit configured to apply first and second irradiation light beams having a first linear polarization direction, a scale configured to produce first and second diffraction light beams having the first linear polarization direction by diffracting the first and second irradiation light beams, respectively, the scale having a glass plate whose front surface has a grating shape, a polarizing unit configured to convert the first diffraction light beam into a third diffraction light beam having a second linear polarization direction which is perpendicular to the first linear polarization direction, to produce first and second composite light beams by combining the second diffraction light beam and the third diffraction light beam, and to convert the first composite light beam into a circularly polarized third composite light beam, and a light receiver configured to receive the second composite light beam and the third composite light beam.
Abstract translation: 一种光电编码器包括：照射单元，被配置为施加具有第一线性偏振方向的第一和第二照射光束，刻度被配置为通过衍射第一和第二照射光束来产生具有第一线偏振方向的第一和第二衍射光束; 分别具有前表面具有光栅形状的玻璃板，将第一衍射光束转换为具有垂直于第一线偏振方向的第二线偏振方向的第三衍射光束的偏振部件， 通过组合第二衍射光束和第三衍射光束来产生第一和第二复合光束，并将第一复合光束转换成圆偏振的第三复合光束;以及光接收器，被配置为接收第二复合光束 和第三复合光束。
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公开(公告)号：US20130327930A1
公开(公告)日：2013-12-12
申请号：US13913025
申请日：2013-06-07
Applicant: MITUTOYO CORPORATION
Inventor： Kimitoshi Ono , Hiroaki Kawada
CPC classification number: G01D5/34715 , G01D5/34 , G02B7/02
Abstract: An optical encoder includes a detection head. The detection head includes an optical system including a lens including a pair of bosses integrally formed with the lens and disposed with an optical axis of the lens therebetween, and an aperture plate having a pair of reference-pin-insertion holes disposed with an aperture therebetween; a housing including a pair of attachment portions and having a pair of lens-boss-insertion holes and a pair of reference-pin-insertion holes disposed on a central symmetry plane; a lens holder having a pair of lens-boss-insertion holes and a pair of reference-pin-insertion holes disposed on the central symmetry plane; and a pair of reference pins for positioning the lens holder and the aperture plate relative to the housing. An optical axis of the optical system is adjusted with respect to the bosses and the reference pins.
Abstract translation: 光学编码器包括检测头。 检测头包括光学系统，该光学系统包括透镜，该透镜包括一对与该透镜一体形成的凸起并且设置在其间的透镜的光轴;以及孔板，其具有设置有孔径的一对基准销插入孔 ; 壳体，包括一对安装部分，并且具有一对透镜凸台插入孔和设置在中心对称平面上的一对基准销插入孔; 具有一对透镜凸台插入孔和设置在中心对称平面上的一对基准销插入孔的透镜架; 以及一对用于相对于壳体定位透镜保持器和孔板的参考销。 光学系统的光轴相对于凸台和参考销进行调整。
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公开(公告)号：US20130214137A1
公开(公告)日：2013-08-22
申请号：US13767101
申请日：2013-02-14
Applicant: Mitutoyo Corporation
Inventor： Kenichi Hayashi , Hiroaki Kawada
CPC classification number: G01D5/34746 , G01D5/345
Abstract: A photoelectric encoder includes an irradiation unit configured to apply first and second irradiation light beams having a first linear polarization direction, a scale configured to produce first and second diffraction light beams having the first linear polarization direction by diffracting the first and second irradiation light beams, respectively, the scale having a glass plate whose front surface has a grating shape, a polarizing unit configured to convert the first diffraction light beam into a third diffraction light beam having a second linear polarization direction which is perpendicular to the first linear polarization direction, to produce first and second composite light beams by combining the second diffraction light beam and the third diffraction light beam, and to convert the first composite light beam into a circularly polarized third composite light beam, and a light receiver configured to receive the second composite light beam and the third composite light beam.
Abstract translation: 一种光电编码器包括：照射单元，被配置为施加具有第一线性偏振方向的第一和第二照射光束，刻度被配置为通过衍射第一和第二照射光束来产生具有第一线偏振方向的第一和第二衍射光束; 分别具有前表面具有光栅形状的玻璃板，将第一衍射光束转换为具有垂直于第一线偏振方向的第二线偏振方向的第三衍射光束的偏振部件， 通过组合第二衍射光束和第三衍射光束来产生第一和第二复合光束，并将第一复合光束转换成圆偏振的第三复合光束;以及光接收器，被配置为接收第二复合光束 和第三复合光束。
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