Covers glasses of RI 1.82-2.0, preferably 1.90-1.95, of composition (wt%): 49-65 BaO, 20-40 TiO2, 6-14 B2O3, 1-11 Al2O3.
Origin
Unknown
Journal Title
Usp 3 041 191, 26/6/62
Sector
Refractive Indexes
Class
RI 20