Reflective members for use in encoder systems

Details Reflective members for use in encoder systems Reflective members for use in encoder systems

2007-11-27

2007-11-27

Le, Thien Minh (Department: 2876)

Registers

Records

Particular code pattern

C235S462010

Reexamination Certificate

active

10409544

ABSTRACT:
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.

REFERENCES:
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patent: 6663790 (2003-12-01), Kowarz et al.
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patent: 6782027 (2004-08-01), Cox et al.
patent: 6827283 (2004-12-01), Kappe et al.
patent: 2004/0184151 (2004-09-01), Schilling et al.

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