Covers glasses melted from mixtures of at least one of the group SrO, BaO, at least one of ZnO, CdO with B2O3 in amount to form borates, the ratio of (SrO + BaO) to (ZnO + CdO) being between 1.5 and 0.2. 40 compositions are quoted with RI ranging from 1.706 - 1.642.
Origin
Unknown
Journal Title
Usp 2 996 393, 15/8/61
Sector
Refractive Indexes
Class
RI 18