About: http://webisa.webdatacommons.org/228173013

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	In a known eye detector used in a single lens reflex camera, a bundle of rays emitted from a light source, such as a light emitting diode (LED), is made incident upon a photographer's eye through an eyepiece of the view finder.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com