The light beam shaping module comprises a first cylindrical lens and {HEAD ~ a second cylindrical lens} for respectively converging {TAIL ~ the light beams} in two directions 
for converging
The light beam shaping module comprises a first cylindrical lens and { HEAD ~ a second cylindrical lens } for respectively converging { TAIL ~ the light beams } in two directions
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH