PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • A ???C-plate??? is an optical retarder utilizing a layer of a uniaxially birefringent material with its extraordinary axis (also called ???c-axis???) perpendicular to the plane of the layer, i.e. parallel to the direction of normally incident light.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com