Patent ID: 6771158
Filing Date: 2004-08-03
Classification: B81B,G02B

Abstract:
A micro electromechanical differential actuator for driving and making out-of plane vertical motions and/or in-plane horizontal motions, which comprises:a fixed base; a first structure layer connected to one side of the fixed base and extends out at least on suspension arm from one of its sides; a second structure layer connected to the other side or the same side of the fixed base and extends a corresponding suspension arm for each of the suspension arm on the first structure layer; and a support part connected to the suspension arms of the first structure layer and the second structure layer; wherein the support part is driven by a driving force from the actuator to make out-of-plane vertical motion and in-plane horizontal motions, and the suspension arms of the first structure layer and the second structure layer absorbs motion deformation of the support part so that it is maintained level and; wherein the support part is further connected with the suspension arm structure to form a double-sided bridge structure.