Vibration type driving apparatus and driving circuit thereof
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United States of America Patent
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Jun 7, 2016
Grant Date -
Oct 3, 2013
app pub date -
Mar 27, 2013
filing date -
Apr 2, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
A vibration type driving apparatus includes a vibrating body having an electrical-mechanical energy converting element, a first elastic body and a second elastic body; and a moving body that moves relative to the vibrating body. The vibrating body has a third elastic body that includes a sliding surface. A resonance frequency in a mode where the non-sliding surface side of the vibrating body in the axial direction mainly vibrates with the third elastic body is adapted so as to fall out of a frequency range between a multiple of a maximum frequency of a driving signal applied to the electrical-mechanical energy converting element, and a multiple of a minimum frequency of the driving signal.
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