About: http://webisa.webdatacommons.org/228395716

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	In known range finders of this type, the optical element is a mirror having a spherical surface which is reflective in a peripheral region only.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com