About: http://webisa.webdatacommons.org/201638210

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	rection toward a target object for imaging.BACKGROUND ARTVarious electro-optical systems have been developed for reading optical indicia, such as bar codes.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com