Patent ID: 6367250
Filing Date: 2002-04-09
Classification: F01D,F03G,F05D,F15B,H01H,Y10T

Abstract:
A micro actuator energized by optical energy for use in a remotely controlled servo mechanism comprising:a) means for supplying optical energy, b) actuating means having a first and second shape memory alloy element for actuating said servo mechanism, whereby actuation of said first shape memory element positions said servo mechanism in a first position and actuation of said second shape memory element positions said shape memory element in a second position, wherein said actuating means includes piston-cylinder means having said first and second shape memory elements positioned upon opposite sides thereof whereby a force may be selectively applied to either side of said piston, c) control means whereby said optical energy may be selectively directed to said first and second shape memory element whereby the flow of said optical energy to said first and second shape memory alloy elements may be independently controlled.