When the optical element is irradiated to replicate or image {TAIL ~ the patterns} of {HEAD ~ the optical element}, refined patterns can be replicated or imaged 
When the optical element is irradiated to replicate or image { TAIL ~ the patterns } of { HEAD ~ the optical element } , refined patterns can be replicated or imaged
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH