{HEAD ~ The specular layer} 22 comprises {TAIL ~ a film} 23 of a commercially available polyester film such as Mylar having a metallized coating 24 deposited on clear film 23 to form a specular surface 26 
{ HEAD ~ The specular layer } 22 comprises { TAIL ~ a film } 23 of a commercially available polyester film such as Mylar having a metallized coating 24 deposited on clear film 23 to form a specular surface 26
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH 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