PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • However, it remains challenging to design a lens that meets three important conditions at the same time: high NA for maximum speed (f#<1.25), broadband color correction (VIS + NIR), and a passively athermal design suitable for outdoor use, i.e. minimal shift of the focal length.
http://www.w3.org/ns/prov#wasQuotedFrom
  • spie.org