Refractive
Indices |
|
|
|
|
706.5 |
1.55943 |
|
656.3 |
1.56105 |
|
643.8 |
1.56150 |
|
632.8 |
1.56192 |
|
589.3 |
1.56380 |
|
587.6 |
1.56388 |
|
546.1 |
1.56610 |
|
486.1 |
1.57033 |
|
480.0 |
1.57086 |
|
435.8 |
1.57535 |
|
404.7 |
1.57951 |
|
365.0 |
1.58661 |
|
|
|
|
|
|
|
Constants of Dispersion
Formula |
|
2.4092857 |
|
-9.1675379 10 |
|
-1.323499310 |
|
1.437233010 |
|
1.579655710 |
|
3.815337610 |
|
Relative Partial Dispersions
|
|
0.3050 |
|
0.2544 |
|
0.2392 |
|
0.2373 |
|
0.5409 |
|
0.4799 |
|
|
|
-0.0007 |
|
-0.0013 |
|
Chemical
Properties |
|
Grade |
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|
1 |
.gif)
|
3 |
|
1 |
|
2 |
|
ThermalProperties |
.gif)
|
616 |
.gif)
|
671 |
|
557 |
|
589 |
|
62 |
|
71 |
|
Mechanical
Properties |
|
506 |
|
0.80 |
|
8063 |
|
3252 |
|
0.240 |
|
Stress-Optical
Coefficient |
|
|
|
Coloration
Code |
|
35/30 |
|
|
|
Other
Properties |
|
3.05 |
|
|
|
Internal
Transmittance |
|
|
|
2400 |
0.915 |
0.838 |
2200 |
0.945 |
0.893 |
2000 |
0.984 |
0.969 |
1800 |
0.993 |
0.986 |
1600 |
0.998 |
0.996 |
1400 |
0.999 |
0.998 |
1200 |
0.999 |
0.998 |
1060 |
0.999 |
0.998 |
1000 |
0.999 |
0.998 |
950 |
0.999 |
0.998 |
900 |
0.999 |
0.998 |
850 |
0.999 |
0.998 |
800 |
0.999 |
0.998 |
700 |
0.999 |
0.998 |
650 |
0.999 |
0.998 |
600 |
0.999 |
0.998 |
550 |
0.999 |
0.998 |
500 |
0.998 |
0.996 |
480 |
0.997 |
0.995 |
460 |
0.997 |
0.994 |
440 |
0.996 |
0.992 |
420 |
0.995 |
0.991 |
400 |
0.994 |
0.988 |
390 |
0.991 |
0.982 |
380 |
0.987 |
0.974 |
370 |
0.981 |
0.963 |
360 |
0.966 |
0.934 |
350 |
0.940 |
0.883 |
340 |
0.89 |
0.79 |
330 |
0.80 |
0.64 |
320 |
0.66 |
0.43 |
310 |
0.46 |
0.21 |
300 |
0.24 |
0.06 |
290 |
0.08 |
|
280 |
|
|
|
1.56388 
60.76
0.009280 
1.56610 
60.50
0.009357