injecting {HEAD ~ a plastic molding composition} into {TAIL ~ the mold} and against the molding surface of the master element to injection mold a diffractive optical element, whereby the optical element has the desired diffraction pattern on its surface and 
into
injecting { HEAD ~ a plastic molding composition } into { TAIL ~ the mold } and against the molding surface of the master element to injection mold a diffractive optical element , whereby the optical element has the desired diffraction pattern on its surface and
OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH