About: http://webisa.webdatacommons.org/41508412

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 a typical optical arrangement associated with a sample mount, nearly monochromatic light, such as from a laser, is passed through a double convex lens which focuses the light upon the material sample.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com