About: http://webisa.webdatacommons.org/366597904

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. 13A is a diagram of an optical system based on a single lens model, and FIG. 13B is a diagram of a single lens model showing creation of a blur spot when the target image is moved away from the focal point.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com.au