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公开(公告)号:US07299991B2
公开(公告)日:2007-11-27
申请号:US10409544
申请日:2003-04-08
CPC分类号: G01D5/34707
摘要: Reflective members for use in encoder systems are provided. One embodiment comprises a reflective member comprising a reflective layer, at least another layer, and a reflective pattern comprising a first portion having a first reflective property and a second portion having a different reflective property. The reflective layer forms at least a part of the reflective pattern. In addition, the aforementioned first portion of the reflective member has a width of less than half of the grating period. The reflective member enables measurement of at least one operational attribute of an object.
摘要翻译: 提供了用于编码器系统的反射构件。 一个实施例包括反射构件,其包括反射层,至少另一层,以及包括具有第一反射性质的第一部分和具有不同反射性质的第二部分的反射图案。 反射层形成反射图案的至少一部分。 此外,反射构件的上述第一部分具有小于光栅周期的一半的宽度。 反射构件能够测量对象的至少一个操作属性。