About: http://webisa.webdatacommons.org/98726015

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 present invention relates to an optical element to be used as a polarization diffraction element, phase shifting element, antireflection element or the like, in optical pickup devices and other devices.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com