The processing optic tiles {HEAD ~ the first optical field} into {TAIL ~ a plurality} of second optical fields 
into
The processing optic tiles { HEAD ~ the first optical field } into { TAIL ~ a plurality } of second optical fields
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH