| 牌
号 |
厚度
(mm) |
A[2856k] |
D65 |
化学稳定性
|
ND |
α×10-7
(/℃) |
Tg
(℃) |
Ts
(℃) |
S |
| x |
y |
Y |
x |
y |
Y |
DA |
DW |
| QB16 |
2 |
0.430 |
0.411 |
82.4 |
0.300 |
0.327 |
84.7 |
6 |
5 |
1.520 |
|
|
|
2.64 |
| QB17
|
2 |
0.424 |
0.417 |
71.4 |
0.299 |
0.334 |
74.0 |
6 |
5 |
1.515 |
|
|
|
2.60 |
| QB18 |
2 |
0.400 |
0.413 |
75.2 |
0.274 |
0.315 |
78.3 |
1 |
3 |
1.518 |
90 |
490 |
555 |
2.50 |
| QB19
|
2 |
0.247 |
0.250 |
12.2 |
0.175 |
0.137 |
15.6 |
1 |
| |
