About: http://webisa.webdatacommons.org/221485624

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	However, h is a distance from the optical axis Ax1 for the surfaces of the first lens 21.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com