About: http://webisa.webdatacommons.org/323773481

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. 9 is a plot of the light intensity of the lamp of FIGS. 5, 6, 7 versus viewing angle .O slashed. when the lens is slightly defocussed;
http://www.w3.org/ns/prov#wasQuotedFrom	google.com