About: http://webisa.webdatacommons.org/441528016

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	source such as a laser or a light emitting diode (LED), with the intensity of the output being modulated electrically by the response of the sensor.
http://www.w3.org/ns/prov#wasQuotedFrom	patents.com