Patent ID: 7876484
Filing Date: 2011-01-25
Classification: G02B,G03G,H04N

Abstract:
1. An actuator, comprising: a first vibration system including a driving member having a frame shape, and a pair of first axial members which supports the driving member on a first axis; a second vibration system including a movable plate provided inside the driving member, and a pair of second axial members which supports the movable plate on a second axis perpendicular to the first axis; a ferromagnetic member; a coil generating a magnetic-field acting on the ferromagnetic member and a voltage applying unit applying a voltage to the coil; and a positioning portion disposed on the driving member and setting a fixing position of the ferromagnetic member or the coil with respect to the driving member; wherein either one of the ferromagnetic member and the coil is disposed at a position on the driving member apart from each of the first and second axes in a plan view of the movable plate, the movable plate rotates about each of the first and second axes by the voltage applying unit applying a voltage to the coil, and the positioning portion includes a spacer which forms a space between the movable plate and the ferromagnetic member.