About: http://webisa.webdatacommons.org/184954274

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	a thin-walled portion at its lower or upper portion, and other lenses whose optical center is offset from its geometrical center.
http://www.w3.org/ns/prov#wasQuotedFrom	patents.com