JB490
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 | |||||||
| JB490 | 2 | 0.502 | 0.468 | 94.5 | 0.422 | 0.514 | 89.6 | 1 | 3 | 1.523 | 103 | 527 | 605 | 2.64 |
2. Technical Indexes
| Type | Thickness (mm) |
λtj (nm) |
λ0 (nm) |
Tλ0 (%) |
K |
|---|---|---|---|---|---|
| JB490 | 2 | 490±10 | 580 | ≥89.5 | ≥1.2 |
3. Class Of Bubble、Stripe、Stress
| Type | Bubble | Stripe | Stress |
|---|---|---|---|
| JB490 | C-B | 3C | 3 |
4. Transmittance
