Patent ID: 7164334
Filing Date: 2007-01-16
Classification: G02B,H01H

Abstract:
1. An electrostatic actuator in which absorbing electrodes provided on a substrate electrostatically attract a rocking plate, the electrostatic actuator including: a supporting column fixed on the substrate, the supporting column pivotally supporting the rocking plate to allow more than one degree of pivotal freedom, and the supporting column has a leg part fixed on the substrate and a column capital part provided on the leg part, the column capital part being wider than the leg part; a plurality of beams provided at respective ends of the rocking plate so as to be subjected to electrostatic force of the absorbing electrodes; the rocking plate has a hollow dome part having the plurality of beams at respective ends of the dome part; and the dome part is engaged with the column capital part of the supporting column.