Driving apparatus
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United States of America Patent
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Aug 8, 2023
Grant Date -
Jun 18, 2020
app pub date -
Feb 27, 2020
filing date -
Aug 28, 2017
priority date (Note) -
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status (Latency Note)
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Abstract
A driving apparatus includes a movable portion, a fixed portion configured to hold the movable portion, and a controller configured to control a position of the movable portion relative to the fixed portion. At least part of the outer surface of the movable portion is a spherical surface. The fixed portion includes a plurality of vibrators configured to press and contact the spherical surface of the movable portion and to rotate the movable portion, and a pressure receiver configured to hold pressure contact states of the plurality of vibrators against the movable portion. The movable portion is held by the plurality of vibrators and the pressure receiver, and a spherical center of the spherical surface of the movable portion is located between a plane passing through the plurality of vibrators and the pressure receiver.
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