About: http://webisa.webdatacommons.org/375045108

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. 4B is a schematic sectional plan view of the optical system of FIG. 2 with ray trace lines showing stereo aperture in relation to viewing fields presented to a pair of eyes confronted by the optical system of FIG. 2;
http://www.w3.org/ns/prov#wasQuotedFrom	google.com