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    • 8. 发明公开
    • 패턴 형태로 설계된 광학식 로터리 엔코더용 광 신호 감지 소자
    • 用于光转换编码器的光电探测器的图案及其设计方法
    • KR1020120116221A
    • 2012-10-22
    • KR1020110033828
    • 2011-04-12
    • 알에스오토메이션주식회사서울대학교산학협력단
    • 이상훈조동일박재홍반욱
    • G01D5/34G01D5/347
    • G01D5/3473G01D1/02G01D5/34707G01D5/36
    • PURPOSE: An optical signal sensing element for an optical rotary encoder designed as a pattern form is provided to obtain resolution higher than the resolution of a code disc by processing signals because signals having a period same with a repeat period of a minimum slit can be obtained. CONSTITUTION: An optical signal sensing element for an optical rotary encoder designed as a pattern form comprises an optical signal generating unit, am optical signal receiving unit, and a code disc. The optical signal receiving unit generates an output proportional to optical signals being projected to an activated area. Patterns generated by a mask have a form in which unit patterns are repeatedly arranged. The unit patterns have an optical signal screen unit and optical signal transmission unit divided by one boundary line. The width in a progressive direction of the code disc of the unit patterns is defined as a minimum repeat period of the code disc. The output of the optical signal receiving unit generates analog signals having a period same with the pattern period of the disc pattern as the code disc patterns passes above the patterned optical signal receiving unit. [Reference numerals] (AA) Optical signal generating unit; (CC) Light; (DD) Optical signal receiving unit; (EE) Code disc
    • 目的:提供一种设计为图案形式的光学旋转编码器的光学信号感应元件,以通过处理信号来获得高于代码盘分辨率的分辨率,因为可以获得具有与最小狭缝的重复周期相同周期的信号 。 构成:用于作为图案形式设计的光学旋转编码器的光信号感测元件包括光信号产生单元,光信号接收单元和代码盘。 光信号接收单元产生与被投影到激活区域的光信号成比例的输出。 由掩模生成的图案具有重复布置单元图案的形式。 单元图案具有光信号屏单元和光信号传输单元除以一边界线。 单位图案的代码盘的逐行方向的宽度被定义为代码盘的最小重复周期。 光信号接收单元的输出产生具有与代码光盘图案通过图案化光信号接收单元上方的盘图案的图案周期相同周期的模拟信号。 (附图标记)(AA)光信号生成单元; (CC)灯; (DD)光信号接收单元; (EE)代码光盘