Vibration wave motor and lens driving apparatus
AssigneeCanon Kabushiki Kaisha
InventorShunsuke Ninomiya
Life of this patent
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Abstract
Provided is a vibration wave motor including: a vibrator; a pressurizing member configured to pressurize the vibrator against a friction member; a holding member configured to hold the vibrator; and a buffering member provided between the vibrator and the holding member. The vibrator and the friction member are moved relatively to each other in a relative movement direction by vibration of the vibrator, and the holding member holds the vibrator in such a manner that an extending part extending in a pressurizing direction of the pressurizing member sandwiches the vibrator and the buffering member.
Claims13
A vibration wave motor comprising:
- a vibrator;
- a pressurizing member configured to pressurize the vibrator against a friction member;
- a holding member configured to hold the vibrator;
- and
- a buffering member provided between the vibrator and the holding member, wherein
- the vibrator and the friction member are moved relatively to each other in a relative movement direction by vibration of the vibrator, and
- the holding member holds the vibrator in such a manner that an extending part extending in a pressurizing direction of the pressurizing member sandwiches the vibrator and the buffering member.
A lens driving apparatus comprising:
- a vibration wave motor including:
- a vibrator;
- a pressurizing member configured to pressurize the vibrator against a friction member;
- a holding member configured to hold the vibrator;
- and
- a buffering member provided between the vibrator and the holding member, the vibrator and the friction member being moved relatively to each other in a relative movement direction by vibration of the vibrator, an extending part provided in a direction different from the relative movement direction holding the vibrator in such a manner that the holding member sandwiches the holding member;
- and
- a lens,
- wherein the lens is driven by the relative movement in an optical axis direction.
Dependencies are inferred from the claim text.