{HEAD ~ A lens array} 4 is formed as {TAIL ~ an erect 1:1 imaging lens} by superimposing two lens plates 40 and 40 together 
is formed as
{ HEAD ~ A lens array } 4 is formed as { TAIL ~ an erect 1:1 imaging lens } by superimposing two lens plates 40 and 40 together
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH