About: http://webisa.webdatacommons.org/27782916

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	It can be preferably positioned at the center of the lens, at a thinnest portion of the lens, alternatively and/or additionally at an edge, as for example on an integral mounting flange and/or at other positions of a lens.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com