It should be noted that the concept of imparting {HEAD ~ motion} to a solid state image sensor using {TAIL ~ piezoelectric elements} is known 
It should be noted that the concept of imparting { HEAD ~ motion } to a solid state image sensor using { TAIL ~ piezoelectric elements } is known
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH