| 摘要 |
PURPOSE:To provide an optical element driving device in which driving characteristic is not changed even when an optical element is tilted. CONSTITUTION:A moving body 12 is attached to a piezoelectric element 11, and connected to an arm 9 provided in a lens frame 5 freely moving in a lens barrel 3 through a pin 13 in a state a gap DELTA is left. By impressing a driving signal on the piezoelectric element 11, a lens 4 is moved in an optical axis direction together with the lens frame 5 by using impact force caused by elongation and contraction, and a focus driving mechanism is formed. Even when the lens frame 5 is tilted, the tilt component is not transmitted to the moving body 12 side by the gap DELTA, and the driving characteristic that the frictional force of the moving body 12 and the lens barrel 3 is not changed is realized. |
