One or more piezoelectric ring bender actuators may provide the force required for compressing {HEAD ~ the support ring} and deflecting {TAIL ~ the optical surfaces} 
One or more piezoelectric ring bender actuators may provide the force required for compressing { HEAD ~ the support ring } and deflecting { TAIL ~ the optical surfaces }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL