
基本信息:
- 专利标题: PHOTOELECTRIC ENCODER
- 专利标题(中):光电编码器
- 申请号:US15262412 申请日:2016-09-12
- 公开(公告)号:US20170074686A1 公开(公告)日:2017-03-16
- 发明人: Kimitoshi Ono
- 申请人: Mitutoyo Corporation
- 优先权: JP2015-180529 20150914
- 主分类号: G01D5/347
- IPC分类号: G01D5/347 ; H04N5/225 ; G02B3/00 ; G02B13/22 ; G02B5/18
摘要:
A photoelectric encoder of the present invention includes: a scale which includes a grid scale; a light emitting portion which irradiates light toward the scale; a light receiving portion which detects an image of the grid scale of the scale; and a telecentric optical unit which is provided between the scale and the light receiving portion and forms the image of the grid scale on the light receiving portion, wherein the telecentric optical unit includes a first optical element which is disposed near the scale, a second optical element which is disposed near the light receiving portion in relation to the first optical element and is disposed so that a gap is formed between the second optical element and the first optical element, and an aperture which is provided in at least one of a face near the second optical element in the first optical element and a face near the first optical element in the second optical element.
摘要(中):
本发明的光电编码器包括:包括栅格的刻度; 将光朝规模照射的发光部; 光接收部分,其检测标尺的网格尺度的图像; 以及远心光学单元,其设置在所述刻度尺和所述光接收部之间,并且在所述光接收部分上形成所述格栅的图像,其中所述远心光学单元包括设置在所述刻度附近的第一光学元件,第二光学单元 元件,其相对于第一光学元件设置在光接收部分附近,并且被布置成使得在第二光学元件和第一光学元件之间形成间隙,并且孔被设置在靠近 第一光学元件中的第二光学元件和第二光学元件中的第一光学元件附近的面。
公开/授权文献:
IPC结构图谱:
G | 物理 |
--G01 | 测量;测试 |
----G01D | 非专用于特定变量的测量;不包含在其他单独小类中的测量两个或多个变量的装置;计费设备;未列入其他类目的测量或测试 |
------G01D5/00 | 用于传递传感构件的输出的机械装置;将传感构件的输出变换成不同变量的装置,其中传感构件的形式和特性不限制变换装置;非专用于特定变量的变换器 |
--------G01D5/02 | .采用机械装置 |
----------G01D5/28 | ..利用光束的偏转,例如直接的光指示 |
------------G01D5/34 | ...利用光电元件检测光束 |
--------------G01D5/347 | ....利用位移编码度盘 |