About: http://webisa.webdatacommons.org/110433095

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	The infrared scanning beam receiver 31 shown in the figure is a generally conical block made of a material that transmits an infrared ray such as plastic (e.g., acrylic material) or glass.
http://www.w3.org/ns/prov#wasQuotedFrom	google.fr