About: http://webisa.webdatacommons.org/70717364

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	To this end, the optical head 3 is composed of a laser diode as a laser source, an optical system including a polarizing beam splitter (PBS), objective lens 3 a, etc., photodetector to detect a return light, etc.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com