Miniaturized single track optical encoder system with integrated index channel(s)

Disclosed are various embodiments of a reflective optical encoder system having at least three channels-two data channels and at least one index channel. The various configurations of reflective optical encoders disclosed herein permits very high resolution reflective optical encoders in small packa...

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Bibliographic Details
Main Authors AZIZ TENGKU NORAZMAN BIN TENGKU ABD, BAHARI SAIDAN SAIFUL
Format Patent
LanguageEnglish
Published 19.07.2011
Subjects
ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS
MEASURING
MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE
MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
PHYSICS
TARIFF METERING APPARATUS
TESTING
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Summary:Disclosed are various embodiments of a reflective optical encoder system having at least three channels-two data channels and at least one index channel. The various configurations of reflective optical encoders disclosed herein permits very high resolution reflective optical encoders in small packages to be provided. In addition, the embodiments of the reflective optical encoder systems disclosed herein reduce problems associated with misalignment between code scales and light detectors, permit relatively simple electronic circuitry to be used to process outputs, and reduce manufacturing, assembly, integrated circuit and encoder costs. Methods of making and using such optical encoders are also disclosed.
Bibliography:Application Number: US20090495786