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公开(公告)号：EP0323031A3
公开(公告)日：1990-02-07
申请号：EP88311247.6
申请日：1988-11-28
IPC分类号： G01D5/34
CPC分类号： G01D5/345
摘要： A light position sensor comprising: light emitting means for emitting a light; an optical block (27) having a magneto-optical effect element (28) mounted thereon; a movable magnetic scale (13) disposed in opposed relationship to the magneto-optical effect element (28) and having a plurality of magnetized segments (29a to 29g) mounted thereon; first optical wave guiding means for guiding the light emitted from the light emitting means; polarizing means (26) connected at its one end to the first optical wave guiding means and at its the other end to the optical block (27), the polarizing means (26) being adapted to convert the light into a light having a single plane of polarization, the single plane of polarization being rotated to a predetermined angle by the magneto-optical effect element (28) in the presence of the magnetized segments (29a to 29g); polarization detecting means (30) connected to the optical block (28) in parallel relationship to the polarizing means (26) and adapted to pass therethrough a light wherein the single plane of polarization is rotated to the predetermined angle; second optical wave guiding means for guiding the light from the polarization detecting means (30) which is connected to the polarization detecting means (30); and opto-electric converting means (32; 69, 70) for converting the light guided by the second optical wave guiding means into an electric signal.
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公开(公告)号：EP0323031A2
公开(公告)日：1989-07-05
申请号：EP88311247.6
申请日：1988-11-28
IPC分类号： G01D5/34
CPC分类号： G01D5/345
摘要： A light position sensor comprising: light emitting means for emitting a light; an optical block (27) having a magneto-optical effect element (28) mounted thereon; a movable magnetic scale (13) disposed in opposed relationship to the magneto-optical effect element (28) and having a plurality of magnetized segments (29a to 29g) mounted thereon; first optical wave guiding means for guiding the light emitted from the light emitting means; polarizing means (26) connected at its one end to the first optical wave guiding means and at its the other end to the optical block (27), the polarizing means (26) being adapted to convert the light into a light having a single plane of polarization, the single plane of polarization being rotated to a predetermined angle by the magneto-optical effect element (28) in the presence of the magnetized segments (29a to 29g); polarization detecting means (30) connected to the optical block (28) in parallel relationship to the polarizing means (26) and adapted to pass therethrough a light wherein the single plane of polarization is rotated to the predetermined angle; second optical wave guiding means for guiding the light from the polarization detecting means (30) which is connected to the polarization detecting means (30); and opto-electric converting means (32; 69, 70) for converting the light guided by the second optical wave guiding means into an electric signal.
摘要翻译： 一种光位置传感器，包括：发光装置，用于发光; 具有安装在其上的磁光效应元件（28）的光学块（27） 与所述磁光效应元件相对设置并具有安装在其上的多个磁化片段（29a〜29g）的可动磁标尺（13） 第一光波引导装置，用于引导从发光装置发射的光; 偏振装置（26）在其一端连接到第一光波引导装置，另一端连接到光学块（27），偏振装置（26）适于将光转换成具有单个平面的光 在磁化段（29a〜29g）存在的情况下，磁光效应元件（28）将单极化偏转旋转到预定的角度; 偏振检测装置（30），其与所述偏振装置（26）平行地连接到所述光学块（28），并且适于通过其中所述单个偏振平面旋转到所述预定角度的光; 第二光波引导装置，用于引导来自偏振检测装置（30）的光，其连接到偏振检测装置（30）; 以及用于将由第二光波引导装置引导的光转换成电信号的光电转换装置（32; 69,70）。
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