About: http://webisa.webdatacommons.org/293255989

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	Advantageously, the optic means comprises a focusing lens, e.g. a plano-convex lens, and an aperture stop located in the first optical path adjacent the focusing lens.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com