VIBRATION WAVE MOTOR AND IMAGING APPARATUS AND ELECTRONIC APPARATUS INCLUDING VIBRATION WAVE MOTOR
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United States of America Patent
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Issued Date -
Mar 2, 2023
app pub date -
Oct 10, 2022
filing date -
Apr 13, 2020
priority date (Note) -
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Abstract
A vibration wave motor, includes a vibrator including an electro-mechanical energy conversion element and an elastic body, and a contact body, wherein the elastic body includes a flat plate portion on which the electro-mechanical energy conversion element is fixed, and a protruding portion, wherein the protruding portion includes a contact portion, a side wall portion, and a coupling portion that is configured to couple the contact portion and the side wall portion, and wherein a predetermined inequality is satisfied, where a thickness of the side wall portion in a direction orthogonal to the pressure direction is t1, and a distance in the pressure direction from a second surface of the flat plate portion to the coupling portion is h1, the second surface of the flat plate portion facing a first surface of the flat plate portion on which the electro-mechanical energy conversion element is fixed.
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