About: http://webisa.webdatacommons.org/54500121

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 spherical aberration correcting element according to claim 18, wherein one surface is a continuous surface and the other surface is the grating surface.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com