About: http://webisa.webdatacommons.org/4987984

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	Accordingly, off-axis aberrations such as astigmatism, curvature of field and upper coma, in particular, can be excellently corrected.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com