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Infrared glass Characteristic
Type Thickness
(mm)
A[2856k] D65 Chemical Stability ND α×10-7
(/℃)
Tg
(℃)
Ts
(℃)
S
x y Y x y Y DA DW
HWB760 3             5 4 1.532 111 534 592 2.77
HWB780 3             5 4 1.532 111 534 592 2.77
HWB800 3             5 4 1.520 98 559 615 3.05
HWB830 3             5 4 1.520 98 559 615 3.05
HWB850 3             5 4 1.520 98 559 615 3.05
HWB930 6             3 3         2.57

Infrared glass technical indexes and class of bubble, stripe, stress
< < < < < <
Type Thickness
(mm)
λtj(nm) λ0(nm) 0(%) K Bubble Stripe Stress
HWB760 3 760±10 850 ≥83.6 ≥0.6 C-B 3C 3
HWB780 3 780±10 900 ≥83.6 ≥0.5 C-B 3C 3
HWB800 3 800±10 900 ≥83.6 ≥0.5 C-B 3C 3
HWB830 3 830±10 930 ≥83.6 ≥0.5 C-B 3C 3
HWB850 3 850±10 950 ≥80.0 ≥0.5 C-B 4 3
HWB930 6 930±15 1050 ≥80.0 ≥0.2 C 3C 3

Infrared glass's spectra
Infrared glass
Infrared glass

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