About: http://webisa.webdatacommons.org/451268002

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	In general, the optical system 17 which images light modulated by first light modulator 16 onto rear-projection screen 23 may comprise one or more mirrors, lenses or other optical elements.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com.au