Lens driving apparatus and lens driving method
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United States of America Patent
Stats
-
Jan 22, 2019
Grant Date -
Jul 14, 2016
app pub date -
Jan 12, 2016
filing date -
Jan 14, 2015
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A lens driving apparatus includes a lens holding member for holding a lens movably in an optical axis direction; a first guide bar and a second guide bar that support the lens holding member movably in the optical axis direction; first driving unit and second driving unit that drive the lens holding member in the optical direction; and first position detection unit and second position detection unit that are positioned close to the first driving unit and the second driving unit to detect a position in the optical axis direction. Upon driving the lens holding member, either of or both of the first driving unit and the second driving unit are driven and controlled from a position detection result of the first position detection unit and the second position detection unit in such a manner that the first and second driving units are positioned at a predetermined position.
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