{HEAD ~ Several techniques} for forming a colored interference filter coating on {TAIL ~ a substrate} such as polyester film 
{ HEAD ~ Several techniques } for forming a colored interference filter coating on { TAIL ~ a substrate } such as polyester film
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH