Patent ID: 8310128
Filing Date: 2012-11-13
Classification: H02N

Abstract:
1. A MEMS stage comprising: an end effector; a first linear comb drive actuator mechanically connected to said end effector for translating said end effector in a first direction corresponding to a y-axis direction; a second linear comb drive actuator mechanically connected to said end effector for translating said end effector in a second direction corresponding to an x-axis direction; a first plurality of folded springs mechanically connected to said first linear comb drive actuator; a second plurality of folded springs mechanically connected to said second linear comb drive actuator; and a first and a second four bar linkage mechanism, each including a plurality of flexure hinges, wherein said first four bar linkage mechanism connects said first linear comb drive actuator to said end effector and said second four bar linkage mechanism connects said second linear comb drive actuator to said end effector; said four bar linkage mechanism comprising: wherein said MEMS stage delivers translational motion along the X and Y axes, and restricts all rotational degree of freedom of said end effector during translation in said first or second direction and decouples motion in said first direction from motion in said second direction.