About: http://webisa.webdatacommons.org/225397149

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 such as a light emitting diode or a electro-luminescence plate and the gradient index lens unit are not expensive, and reduce the production cost of the image input device.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com