About: http://webisa.webdatacommons.org/274647193

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	It will be apparent that some other light source such as a laser diode or incandescent lamp could be used rather than the LED to provide light for the transducer.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk