ACTUATOR FOR COMPACT CAMERA
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United States of America Patent
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Issued Date -
Jul 30, 2015
app pub date -
Aug 12, 2013
filing date -
Oct 15, 2012
priority date (Note) -
Abandoned
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Abstract
An actuator includes: a main body having a working space therein; a coil mounted to the main body; a blade in which a lens is mounted and inserted into and disposed in the working space; a magnet mounted to the blade and disposed to face the coil to form a magnetic field around the coil, for generating driving power upwards and downwards through an electromagnetic interaction; a wire an end of which is mounted to the main body and an opposite end of which is mounted to the blade, for supporting the blade such that the blade is vertically moved; a Hall sensor mounted to the main body, for measuring a deviation of a vertical position of the magnet with respect to the main body; and a controller for applying a current for correcting the position deviation of the magnet to the coil.
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