Actuator and camera module with a fine movement mechanism as well as the fine motion mechanism with the actuator

摘要

A substrate 1 having a length and a predetermined width as viewed from the thickness direction, the reinforcement portion 2 provided on the surface in the thickness direction either of the substrate 1, provided on a surface in the thickness direction the other of the substrate 1, the substrate In the actuator 11 with a drive unit 10 having a (piezoelectric element 3) displacement means for displacing the width direction of the substrate to the other end side with respect to the direction of one end side length, the reinforcement section 2, the reinforcement portion 2 flexural rigidity of the board width direction of the forms to the shape smaller than the bending stiffness of the substrate thickness direction.