Lens driving apparatus
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United States of America Patent
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Oct 26, 2021
Grant Date -
Jul 14, 2016
app pub date -
Mar 23, 2016
filing date -
Oct 4, 2013
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A lens driving apparatus includes: a fixed assembly including a base frame; a movable assembly including a lens holder configured to hold a lens unit; at least one set of magnets surrounding the movable assembly; three sets of coils configured to interact with the magnets and drive the movable assembly to move along a first, a second, and a third orthogonal axes; and a spring system attached between the movable assembly and the fixed assembly. The third axis is parallel to an optical axis of the lens unit. The first and second axes are respectively perpendicular to the third axis. The three sets of coils include a set of focusing coils and two sets of side coils. The at least one set of magnets include four magnetic members attached to inside walls of the outer casing, among which each two magnetic members are placed opposing to each other.
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