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