Optical position transducer systems and methods employing...

Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system

Reexamination Certificate

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Details

C250S231140, C250S231170, C250S231180, C356S616000, C356S617000, C356S622000

Reexamination Certificate

active

07820956

ABSTRACT:
A position transducer system is disclosed for a limited rotation motor that includes an illumination source that directs illumination toward an illumination reflector that rotates with a rotor of the limited rotation motor, and a plurality of detector areas adjacent the illumination source for receiving modulated reflected illumination from the illumination reflector.

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