Refractive
Indices |
|
|
|
|
706.5 |
1.51289 |
|
656.3 |
1.51432 |
|
643.8 |
1.51472 |
|
632.8 |
1.51509 |
|
589.3 |
1.51673 |
|
587.6 |
1.51680 |
|
546.1 |
1.51872 |
|
486.1 |
1.52237 |
|
480.0 |
1.52282 |
|
435.8 |
1.52667 |
|
404.7 |
1.53022 |
|
365.0 |
1.53622 |
|
|
|
|
|
|
|
Constants of Dispersion
Formula |
|
2.2702566 |
|
-9.1988101 10 |
|
1.160970610 |
|
-7.612391110 |
|
2.855872710 |
|
-1.256648610 |
|
Relative Partial Dispersions
|
|
0.3080 |
|
0.2569 |
|
0.2387 |
|
0.2371 |
|
0.5342 |
|
0.4748 |
|
|
|
-0.0014 |
|
-0.0035 |
|
Chemical
Properties |
|
Grade |
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|
1 |
.gif)
|
1 |
|
3 |
|
1 |
|
ThermalProperties |
.gif)
|
565 |
.gif)
|
630 |
|
511 |
|
547 |
|
75 |
|
82 |
|
Mechanical
Properties |
|
595 |
|
1.00 |
|
7920 |
|
3270 |
|
0.211 |
|
Stress-Optical
Coefficient |
|
2.70 |
|
Coloration Code |
|
33/29 |
|
|
|
Other Properties |
|
2.52 |
|
|
|
Internal
Transmittance |
|
|
|
2400 |
0.86 |
0.74 |
2200 |
0.930 |
0.86 |
2000 |
0.960 |
0.922 |
1800 |
0.985 |
0.970 |
1600 |
0.990 |
0.980 |
1400 |
0.995 |
0.990 |
1200 |
0.998 |
0.996 |
1060 |
0.998 |
0.996 |
1000 |
0.999 |
0.997 |
950 |
0.999 |
0.997 |
900 |
0.999 |
0.998 |
850 |
0.999 |
0.998 |
800 |
0.999 |
0.999 |
700 |
0.999 |
0.999 |
650 |
0.999 |
0.998 |
600 |
0.999 |
0.999 |
550 |
0.999 |
0.999 |
500 |
0.999 |
0.998 |
480 |
0.999 |
0.998 |
460 |
0.999 |
0.998 |
440 |
0.999 |
0.997 |
420 |
0.999 |
0.998 |
400 |
0.999 |
0.998 |
390 |
0.998 |
0.997 |
380 |
0.997 |
0.993 |
370 |
0.997 |
0.993 |
360 |
0.994 |
0.988 |
350 |
0.989 |
0.977 |
340 |
0.977 |
0.954 |
330 |
0.95 |
0.91 |
320 |
0.90 |
0.81 |
310 |
0.80 |
0.63 |
300 |
0.61 |
0.38 |
290 |
0.36 |
0.13 |
280 |
0.14 |
0.02 |
|
1.51680 
64.20
0.008050 
1.51872 
64.00
0.008105