Patent ID: 6680558
Filing Date: 2004-01-20
Classification: G02B,H02N,H04N

Abstract:
An electrostatic actuator, comprising:first stator electrodes arranged in a predetermined direction and extending in a direction crossing the predetermined direction; a second stator electrode arranged to face the first stator electrodes and extending in the predetermined direction; a third stator electrode arranged to face the first stator electrodes and extending in the predetermined direction so as to be electrically isolated from the second stator electrode; a first movable section provided with first and second movable section electrodes, arranged movable within a moving space in the predetermined direction, the moving space being defined between the first stator electrodes and the second stator electrode, the first movable section electrodes being mounted to the first movable section to face the first stator electrodes, and the second movable section electrode being mounted to the first movable section to face the second stator electrode; and a second movable section provided with third and fourth movable section electrodes, arranged independently of the first movable section, the second movable section being movable within the moving space in the predetermined direction, the third movable section electrodes being mounted to the second movable section to face the first stator electrodes, and the fourth movable section electrode being mounted to the second movable section to face the third stator electrode.