Patent ID: 8345363
Filing Date: 2013-01-01
Classification: G02B,H02N,Y10T

Abstract:
1. A drive device comprising: a couple member having a piezoelectric element and a drive shaft coupled together; a movable object to which the couple member is fixed and that is displaced according to drive of the piezoelectric element; a link member that includes an engagement part that is engaged with the drive shaft in a slidable manner along a lengthwise direction of the drive shaft; and a stationary member that holds the link member, wherein the couple member and the movable object are displaced relative to the stationary member according to the drive of the piezoelectric element, and the link member includes a biasing member that biases the drive shaft in a direction intersecting a direction connecting a center of the movable object and the drive shaft when viewed from a moving direction of the movable object.