About: http://webisa.webdatacommons.org/305124111

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 deflection angle usually refers to the angle above or below a plane parallel to the substrate and including the pivot point of the mirror or frame.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com