About: http://webisa.webdatacommons.org/172182863

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	The dichroic mirrors are made of thin film multi-layers of dielectric materials formed on a transparent substrate such as glass by well known thin film manufacturing processes.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com