About: http://webisa.webdatacommons.org/111818403

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	A structure such as shown in FIG. 4b is useful for head-up display diffraction optics combiners, for example, as previously discussed.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com