About: http://webisa.webdatacommons.org/98720159

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 switching arrangement may produce a binary image, for example black and white, or grey levels may be introduced by providing a continuously variable modulation voltage to the modulation electrodes (22).
http://www.w3.org/ns/prov#wasQuotedFrom	google.com