About: http://webisa.webdatacommons.org/168559527

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	FIG. 14 is a schematic drawing showing the optical system of a general projection-type display apparatus provided with an integrator optical system.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk