About: http://webisa.webdatacommons.org/339358200

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	??L is the outer diameter of the most object-side lens component of the objective optical system; and ??D is the smallest distance between the center of an illumination light source and its outer periphery.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com