US 11,843,279 B2
Vibration wave driving apparatus and image pickup apparatus
Akira Shimada, Saitama (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Jul. 6, 2022, as Appl. No. 17/858,644.
Claims priority of application No. 2021-124537 (JP), filed on Jul. 29, 2021.
Prior Publication US 2023/0031311 A1, Feb. 2, 2023
Int. Cl. H02K 33/02 (2006.01); H02N 2/00 (2006.01); H02N 2/10 (2006.01)
CPC H02K 33/02 (2013.01) [H02N 2/001 (2013.01); H02N 2/103 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A vibration wave driving apparatus comprising:
a vibration actuator; and
a driven member configured to be driven by the vibration actuator,
wherein the vibration actuator includes:
a vibrator having an electric-mechanical energy conversion element and an elastic member to which the electric-mechanical energy conversion element is fixed;
a pressurizing member configured to pressurize the vibrator;
a contacting member configured to pressurizing-contact with the vibrator by pressurizing the vibrator by the pressurizing member and move relative to the vibrator; and
an outputting member configured to output a driving force to the driven member, the driving force generated by the moving of the contacting member relative to the vibrator, and
wherein the driven member includes an output transmission member configured to hold the outputting member in a direction of the relative movement with a predetermined spring force.