US Patent 7924514 - CNT bundle microactuator

http://www.freepatentsonline.com/7924514.html

This patent is from Hon Hai Precision (Foxconn) and teaches a form of microactuator intended for use in cameras and cellphones which uses carbon nanotubes to form the arms of the microactuator. Claim 1 reads:

1. A moveable assembly comprising:

a frame;

a plurality of resilient suspension arms each comprised of one or more carbon nanotube bundles; and

a moveable member;

the frame being disposed around the moveable member; and

each of the resilient suspension arms comprising a first end connected to the frame, and a second end connected to the moveable member, the resilient suspension arms being centro-symmetrically arranged relative to the moveable member such that the moveable member is capable of stably moving along a predetermined direction when driven by an external force.