sky light optical glass 1.material:optical glass 2.type:TB1/2 3.guarantee the quality

Sky light Optical glass  characteristics:

Type Thickness(mm) A[2856k] D65 Chemical stability ND α×10-7 (/) Tg () Ts() S x y Y x y Y DA DW TB1 2 0.450 0.407 88.3 0.316 0.330 87.7 4 5 1.547       2.85 TB2 2 0.456 0.405  86.8  0.321  0.330  85.4 1 3 1.558       2.97

Technical specifications of Sky light Optical glass: Grading of Sky light Optical glass by air bubble, strip and stress: Type Thickness(mm) T400 T435 T435-T500 T600-T500 T600-Tg* TB1 2   ≥83.0 ≥1.5 ≥3.0   TB2 2 ≥80.0       6.0±3.0 Type Air bubble Stripe Stress TB1 C-B 3C 3 TB2 C-B 3C 3

sky light optical glass ,glass filter,optica glass.

sky light optical glass