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1. 发明授权

US08097842B2 High resolution single track optical encoder 失效
标题翻译：高分辨率单轨光学编码器
公开(公告)号：US08097842B2
公开(公告)日：2012-01-17
申请号：US12475536
申请日：2009-05-31
申请人： Chung Min Thor , Gim Eng Chew , Chee Wai Ng
发明人： Chung Min Thor , Gim Eng Chew , Chee Wai Ng
IPC分类号： G01D5/34
CPC分类号： G01D5/34746 , G01D5/2451
摘要： Disclosed are various embodiments of a single track reflective optical encoder featuring increased spatial resolution, reduced cross-talk between adjoining photodiodes, and increased amplitude output signals from individual photodiodes. With respect to prior art single track optical encoders, some photodiodes are removed from a photodiode array, while nevertheless maintaining appropriate phase relationships between pairs of A and A\, and B and B\, photodiodes. Such a configuration of photodiodes results in increased inter-photodiode spacing, and thereby permits spatial resolution to be increased while boosting current outputs from individual photodiodes. The single track optical encoder configurations disclosed herein permit very high resolution reflective optical encoders in small packages to be provided. In addition, the single track configuration reduces problems with misalignment between code scales and light detectors, permits relatively simple electronic circuitry to be used to process outputs, and reduces manufacturing, assembly, integrated circuit and encoder costs. Methods of making and using such optical encoders are also disclosed.
摘要翻译：公开了具有增加的空间分辨率，相邻光电二极管之间减少的串扰以及来自各个光电二极管的增加的振幅输出信号的单轨反射光学编码器的各种实施例。对于现有技术的单轨光学编码器，从光电二极管阵列中去除一些光电二极管，同时保持A和A 1对以及B和B 1光电二极管之间的适当的相位关系。这种光电二极管的配置导致增加的光电二极管之间的间隔，从而允许空间分辨率增加，同时提高来自各个光电二极管的电流输出。本文公开的单轨光学编码器配置允许提供小封装的非常高分辨率的反射光学编码器。此外，单轨配置减少了代码量表和光检测器之间的对准问题，允许使用相对简单的电子电路来处理输出，并减少制造，组装，集成电路和编码器成本。还公开了制造和使用这种光学编码器的方法。

2. 发明申请

US20100301195A1 High Resolution Single Track Optical Encoder 失效
标题翻译：高分辨率单轨光学编码器
公开(公告)号：US20100301195A1
公开(公告)日：2010-12-02
申请号：US12475536
申请日：2009-05-31
申请人： Chung Min Thor , Gim Eng Chew , Chee Wai Ng
发明人： Chung Min Thor , Gim Eng Chew , Chee Wai Ng
IPC分类号： G01D5/34
CPC分类号： G01D5/34746 , G01D5/2451
摘要： Disclosed are various embodiments of a single track reflective optical encoder featuring increased spatial resolution, reduced cross-talk between adjoining photodiodes, and increased amplitude output signals from individual photodiodes. With respect to prior art single track optical encoders, some photodiodes are removed from a photodiode array, while nevertheless maintaining appropriate phase relationships between pairs of A and A\, and B and B\, photodiodes. Such a configuration of photodiodes results in increased inter-photodiode spacing, and thereby permits spatial resolution to be increased while boosting current outputs from individual photodiodes. The single track optical encoder configurations disclosed herein permit very high resolution reflective optical encoders in small packages to be provided. In addition, the single track configuration reduces problems with misalignment between code scales and light detectors, permits relatively simple electronic circuitry to be used to process outputs, and reduces manufacturing, assembly, integrated circuit and encoder costs. Methods of making and using such optical encoders are also disclosed.
摘要翻译：公开了具有增加的空间分辨率，相邻光电二极管之间减少的串扰以及来自各个光电二极管的增加的振幅输出信号的单轨反射光学编码器的各种实施例。对于现有技术的单轨光学编码器，从光电二极管阵列中去除一些光电二极管，同时保持A和A 1对以及B和B 1光电二极管之间的适当的相位关系。这种光电二极管的配置导致增加的光电二极管之间的间隔，从而允许空间分辨率增加，同时提高来自各个光电二极管的电流输出。本文公开的单轨光学编码器配置允许提供小封装的非常高分辨率的反射光学编码器。此外，单轨配置减少了代码量表和光检测器之间的对准问题，允许使用相对简单的电子电路来处理输出，并减少制造，组装，集成电路和编码器成本。还公开了制造和使用这种光学编码器的方法。

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