About: http://webisa.webdatacommons.org/41721251

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	In this type of optical switching element, since light is emitted from the surface 22 of the light guide 21, another optical element such as a lens or the like can easily be disposed on the surface side.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com