About: http://webisa.webdatacommons.org/403886401

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, there is a distinct difference between the two calibration methods: while the aperture of the integrating sphere fills the entire FOV limiter, the filament of the QH lamp is only a point source in it.
http://www.w3.org/ns/prov#wasQuotedFrom	mdpi.com