Vibration wave motor and optical device
Number of patents in Portfolio can not be more than 2000
United States of America
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-
Dec 14, 2021
Grant Date -
Oct 4, 2018
app pub date -
Mar 23, 2018
filing date -
Mar 23, 2018
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A vibration wave motor comprises a vibrator including a piezoelectric element and a vibrating body, a friction member including a first surface configured to come into contact with the vibrator, and a second surface, which is a surface on the opposite side of the first surface, the vibrator and the friction member moving relative to each other in a driving direction by a vibration generated by the vibrator, a supporting member configured to support the friction member on the second surface side; and a pressure member configured to bring the vibrator and the friction member into pressure contact with each other. A fixing portion configured to fix the friction member to the supporting member is provided in the friction member. The vibrator can move to a position where at least part of the vibrator and the fixing portion overlap each other in a pressure direction of the pressure member.
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