About: http://webisa.webdatacommons.org/193549500

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 optical shutter 74 may be a Pockel cell, or other suitable electro-optic device capable of selectively blocking or transmitting a portion or all of the energy in laser beam 70.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com