About: http://webisa.webdatacommons.org/212796880

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	Preferably, the length of the aperture is from 1 ??m to 1000 ??m, for example about 50 ??m.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com