VIBRATION WAVE RADIATING DEVICE
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United States of America Patent
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Issued Date -
Apr 25, 2024
app pub date -
Jan 5, 2024
filing date -
Jan 5, 2024
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Abstract
In a vibration wave radiating device, when a distance between a connection portion and a reflecting plane portion in a direction orthogonal to the reflecting plane portion is TD, an angle defined by a virtual line parallel to the reflecting plane portion and a back surface of a vibrating portion in a longitudinal section is θ, a shortest distance between a peripheral edge of the back surface at an end of the vibrating portion opposite to the connection portion and a peripheral edge of the reflecting plane portion is L, and a wavelength of a vibration wave emitted from the vibrating portion is λ, a relationship indicated by 0.78λ≤L≤1.19λ or 1.5λ≤L≤2.14λ is satisfied when TD=0 and 35°≤θ≤55°.
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