{HEAD ~ A layer} of {TAIL ~ transparent acrylate polymer dielectric} between the metal layers completes the interference filter, which may be sandwiched between protective layers 
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{ HEAD ~ A layer } of { TAIL ~ transparent acrylate polymer dielectric } between the metal layers completes the interference filter , which may be sandwiched between protective layers
HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH