Lens positioning system
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United States of America Patent
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Aug 30, 2016
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app pub date -
Jun 6, 2014
filing date -
Jun 6, 2014
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Abstract
An actuator includes an inner element coupled to an outer element by a linear-motion bearing that provides a single degree of translational movement of the inner element with respect to the outer element along a longitudinal axis. The inner element includes a permanent magnet and the outer element includes a conductive winding with a first coil wound in first direction around a first pole of the permanent magnet and a second coil wound in a second direction around a second pole of the permanent magnet.
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