Patent ID: 6856219

Claim:
An electrostatic actuator comprising: a substrate which extends in a horizontal direction; a movable member securing section disposed at the substrate; a movable member having a front surface and a back surface, with the back surface of the movable member opposing the substrate with a gap therebetween extending in a vertical direction; a movable connection beam which connects the movable member to the movable member securing section so that the movable member is displaceable in the vertical direction; a movable electrode disposed on the front surface of the movable member; a drive electrode mounting member mounted to the substrate and disposed at the front surface side of the movable member; a drive electrode securing section disposed at the drive electrode mounting member; and a plurality of drive electrodes disposed at the drive electrode securing section so as to be deformable by flexing in the vertical direction, the plurality of drive electrodes opposing the movable electrode with gaps therebetween in the vertical direction.