About: http://webisa.webdatacommons.org/139595755

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	splitting grating 17 is a diffraction grating having a 2-dimensional convexo-concave pattern formed on a transparent substrate made of, e.g. glass similar to the 1-dimensional beam splitting grating 12 of the second embodiment.
http://www.w3.org/ns/prov#wasQuotedFrom	patents.com