About: http://webisa.webdatacommons.org/38071534

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 pickup has a mechanism including a driver, termed actuator, which moves the objective lenses independently in directions both parallel and perpendicular to the optical axis for focusing and tracking purposes.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com