Patent ID: 9140875
Filing Date: 2015-09-22
Classification: G02B,G03B,H02N

Abstract:
1. A lens drive device comprising: a base; a lens holder arranged on the base; a piezoelectric actuator imparting a drive force to the lens holder; and a pressing piece that provides the piezoelectric actuator with a force to press the piezoelectric actuator against the lens holder; wherein the lens holder has: wherein one end side of the joint is bendable with respect to the projection so as to allow the barrel to move in the optical axis direction through the projection; wherein the other end side of the joint is bendable with respect to the support so as to allow the joint to move in the optical axis direction; wherein the piezoelectric actuator is arranged at a position opposing a region on the opposite side of the outer peripheral surface of the barrel from the projection and has a plurality of frictional parts separated from each other in the optical axis direction; wherein the pressing piece is located on the opposite side of the piezoelectric actuator from the barrel and is integrally disposed upright on the base; and wherein a leading end part of the pressing piece is a free end that presses the piezoelectric actuator against the barrel from the side of the support toward the side of the projection so as to keep a state that at least one of the plurality of frictional parts is in contact with the region.