About: http://webisa.webdatacommons.org/405284093

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 light path modify unit set forth above is a light guide formed of a material having a refractive index higher than that of air.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com