About: http://webisa.webdatacommons.org/368988093

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	Herein, in the present embodiment and other embodiments, a ???grating portion??? indicates one periodic structure that composes respective diffraction gratings.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca