About: http://webisa.webdatacommons.org/219583589

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	d in which a light intercepting material such as nickel is vapor deposited on a glass disc for improving the resolution.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca