About: http://webisa.webdatacommons.org/198771383

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	Typically, cladding glass 102 has a refractive index of about 1.5.Overlying cladding material 102 is a layer of a light (optically) absorptive material 104.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com