About: http://webisa.webdatacommons.org/185337883

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 UV transparent window (not shown), made of a material such as quartz, fused silica, or UV transparent glass, may be included at opening 26 to protect continuous light source 7 b while allowing light to reach the target surfaces.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com