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    • 4. 发明申请
    • ENCODER AND MOTOR WITH ENCODER
    • 编码器和编码器的电机
    • US20160161295A1
    • 2016-06-09
    • US14960753
    • 2015-12-07
    • KABUSHIKI KAISHA YASKAWA DENKI
    • Koji UEMURAYuji ARINAGAShiro YOSHIDOMIlkuma MUROKITAHiroshi TAKADAJiro MURAOKA
    • G01D5/347G01D5/30
    • G01D5/34715G01D5/34792
    • An encoder includes an object body having an absolute pattern formed along a measurement direction, a light source positioned such that the light source emits light to the absolute pattern of the object body, and light receiving elements aligned along the measurement direction such that the light receiving elements receive the light transmitted through or reflected by the absolute pattern of the object body. The light receiving elements include a first light receiving element having a polygonal shape and having a first region in the polygonal shape and a second region formed on an inner side of the first region such that the second region has an optical sensitivity lower than an optical sensitivity of the first region and that the first region includes corner portions of the polygonal shape.
    • 编码器包括具有沿着测量方向形成的绝对图形的物体,将光源发射到物体的绝对图案的光源,以及沿测量方向排列的光接收元件,使得光接收 元件接收通过物体的绝对图案透射或反射的光。 光接收元件包括具有多边形形状并具有多边形形状的第一区域的第一光接收元件和形成在第一区域的内侧上的第二区域,使得第二区域的光学灵敏度低于光学灵敏度 并且第一区域包括多边形形状的角部。
    • 6. 发明申请
    • ENCODER, MOTOR WITH ENCODER, AND SERVO SYSTEM
    • 编码器,带编码器的电机和伺服系统
    • US20150123587A1
    • 2015-05-07
    • US14532005
    • 2014-11-04
    • KABUSHIKI KAISHA YASKAWA DENKI
    • Yasushi YOSHIDAYasuhiro MATSUTANIShiro YOSHIDOMIHiroshi TAKADAYuji ARINAGAIkuma MUROKITAMasanobu HARADAHiroki KONDO
    • G01D5/347G05B1/04H02K11/00
    • G01D5/3473G01D5/34792G01D5/36H02K11/22
    • An encoder includes a plurality of slit tracks, a point light source, a first light-receiving array, and a second light-receiving array. The plurality of slit tracks respectively comprises a plurality of reflection slits arranged along a measurement direction. The point light source is configured to emit diffusion light to the plurality of slit tracks. The first light-receiving array is configured to receive light reflected by the slit track comprising an incremental pattern, and is disposed at a position in a first direction than the point light source. The second light-receiving array is configured to receive light reflected by the slit track comprising an incremental pattern that differs in pitch from the slit track corresponding to the first light-receiving array, and is disposed at a position in a second direction than the point light source. The second direction forms an angle θ with respect to the first direction.
    • 编码器包括多个狭缝轨道,点光源,第一光接收阵列和第二光接收阵列。 多个狭缝轨道分别包括沿着测量方向布置的多个反射狭缝。 点光源被配置为向多个狭缝轨道发射漫射光。 第一光接收阵列被配置为接收由包括增量图案的狭缝轨迹反射的光,并且被布置在比点光源在第一方向的位置。 第二光接收阵列被配置为接收由狭缝轨道反射的光,其包括与对应于第一光接收阵列的狭缝轨道的间距不同的增量图案,并且被布置在比点 光源。 第二个方向形成角度和角度; 相对于第一个方向。