Cover 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 FB1 1 0.513 0.440 10.6 0.421 0.445 9.6     1.527 98 599 599 2.54 FB3 1 0.473 0.473 0.4 0.392 0.435 0.4     1.527 98 599 599 2.54

Technical specifications of Cover glass Grading of Cover glass by air bubble, strip and stress Type Thickness (mm) 320 (nm) 450 (nm) 570 (nm) 660 (nm) 1100 (nm) FB1 1 ≤5.0 12.0~20.0 32.0~46.0 30.0~45.0   FB3 1 ≤0.1 0.1~1.0 0.1~3.0 0.1~1.7 ≤6.6 Type Air bubble Stripe Stress FB1 C 4 3 FB3 C 4 3