About: http://webisa.webdatacommons.org/78513796

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	wherein the refractive optical element is a single cylindrical lens having a curved surface positioned so that an apex of the curved surface is non-parallel to the both the first and second directions.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com.au