An array of M×N actuators for {HEAD ~ use} in {TAIL ~ an optical projection system} wherein each of the actuators consists of: 
in
An array of M×N actuators for { HEAD ~ use } in { TAIL ~ an optical projection system } wherein each of the actuators consists of :
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH