The refractive index(nd) of H-ZLaF70B/H-ZLaF70GT is 1.90366 while the abbe number(υd) is 31.32. H-ZLaF70B and H-ZLaF70GT are both optimized products based on H-ZLaF70 glass. H-ZLaF70B has the lower cost and H-ZLaF70GT has the higher transmittance.
Glass name | Transmittance（5mm） | Transmittance（10mm） | ||||
400nm | 420nm | 460nm | 400nm | 420nm | 460nm | |
H-ZLaF70 | 0.914 | 0.95 | 0.977 | 0.859 | 0.927 | 0.969 |
H-ZLaF70B | 0.901 | 0.954 | 0.984 | 0.812 | 0.91 | 0.969 |
H-ZLaF70GT | 0.941 | 0.971 | 0.987 | 0.886 | 0.942 | 0.975 |
