HB640
1. characteristics
| Type | Thickness (mm) |
A[2856k] | D65 | Chemical Stability | ND | α×10-7 (℃) |
Tg (℃) |
Ts (℃) |
S | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| x | y | Y | x | y | Y | DA | DW | |||||||
| HB640 | 2 | 0.724 | 0.276 | 5.0 | 0.723 | 0.277 | 2.4 | 1 | 2 | 1.523 | 103 | 527 | 605 | 2.64 |
2. Technical Indexes
| Type | Thickness (mm) |
λtj (nm) |
λ0 (nm) |
Tλ0 (%) |
K |
|---|---|---|---|---|---|
| HB640 | 2 | 640 ± 10 | 720 | ≥88.7 | ≥1.2 |
3. Class Of Bubble、Stripe、Stress
| Type | Bubble | Stripe | Stress |
|---|---|---|---|
| HB640 | C-B | 3C | 3 |
4. Transmittance
