About: http://webisa.webdatacommons.org/16055779

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	The light source was a light emitting diode, and the detector was a silicon photodiode.
http://www.w3.org/ns/prov#wasQuotedFrom	patents.com