About: http://webisa.webdatacommons.org/200902831

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	This invention relates to an optical element and an optical apparatus using the same, and is particularly suitable for the various optical systems of a photographing apparatus such as a video camera or a still camera.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com