Springless voice coil actuator and pre-compression magnetic force calibration method thereof
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United States of America Patent
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Feb 28, 2017
Grant Date -
Feb 19, 2015
app pub date -
Feb 24, 2014
filing date -
Aug 14, 2013
priority date (Note) -
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Abstract
A springless voice coil actuator is provided. The springless voice coil includes a base, a coil, a guiding rod, a slidable base, a main magnetic component and a balance magnetic component. The coil is disposed on the base. The guiding rod is disposed on the base. The slidable base is for sliding along the guiding rod to a predetermined direction. The main magnetic component is connected to the slidable base. The balance magnetic component is coupled with the main magnetic component for generating a magnetic induction.
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