VIBRATOR OF VIBRATORY DRIVE UNIT, VIBRATORY DRIVE UNIT, INTERCHANGEABLE LENS, IMAGING DEVICE, AND AUTOMATIC STAGE

摘要

A vibrator including an electro-mechanical transducer and an elastic body that is fixed to the electro-mechanical transducer and that is provided with a projection, the projection having a hollow structure. The projection includes a contact portion having a first surface at a tip, the first surface being parallel to a first plane, a wall portion projecting towards an opposite side with respect to the electro-mechanical transducer, and a connection portion connecting the wall portion and the contact portion to each other. The connection portion having a spring property, and the contact portion includes a portion of which a cross-sectional area in a second plane that is parallel to the first plane increases as an increase of a distance between the portion and the first surface.

主权项

1. A vibrator, comprising:
an electro-mechanical transducer; and an elastic body, wherein the elastic body is provided with a projection protruding at a side opposite to a side at which the electro-mechanical transducer is provided, and a contact portion that protrudes along a direction in which the projection protrudes is provided to the projection, and wherein a width of a base of the contact portion is larger than a width of a top of the contact portion.