Vibration actuator and optical apparatus
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United States of America Patent
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Feb 9, 2016
Grant Date -
Aug 7, 2014
app pub date -
Aug 31, 2012
filing date -
Sep 1, 2011
priority date (Note) -
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Abstract
To reduce the length of the lens barrel, a vibration actuator has a vibrating element, a rotor, a pressing portion, a rotor holder that restricts a position of the rotor in the thrust and radial direction, and a bearing of which a rotation axis is coaxial with the axis of the vibrating element. The rotor holder includes an outer flange to receive the pressure force from the rotor portion, and an inner flange to serve as a first track face of the bearing.
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