Glasses α nd E σ δt δc λc ε
BNF1 1.977 1.47 260 97.4 67.30 863 0.048 6.42
BNF2 4.280 1.49 312 147 65.80 843 0.053 7.84
BNF3 6.580 1.53 350 173.8 64.50 793 0.058 7.96
BNF4 8.882 1.54 381 206 64.35 757 0.061 8.12
BNF5 11.179 1.57 420 249.7 63.00 747 0.066 8.57
Table 3: Calculated properties of studied glasses.