Refractive
Indices |
|
|
|
|
706.5 |
1.54827 |
|
656.3 |
1.54981 |
|
643.8 |
1.55023 |
|
632.8 |
1.55063 |
|
589.3 |
1.55240 |
|
587.6 |
1.55248 |
|
546.1 |
1.55456 |
|
486.1 |
1.55853 |
|
480.0 |
1.55902 |
|
435.8 |
1.56321 |
|
404.7 |
1.56707 |
|
365.0 |
1.57364 |
|
|
|
|
|
|
|
Constants of Dispersion
Formula |
|
2.3778046 |
|
-1.0321230 10 |
|
1.169965710 |
|
2.933530810 |
|
-2.056140510 |
|
1.358266010 |
|
Relative Partial Dispersions
|
|
0.3062 |
|
0.2560 |
|
0.2385 |
|
0.2367 |
|
0.5366 |
|
0.4768 |
|
|
0.0002 |
|
-0.0012 |
|
Chemical
Properties |
|
Grade |
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|
1 |
.gif)
|
2 |
|
3 |
|
3 |
|
ThermalProperties |
.gif)
|
611 |
.gif)
|
667 |
|
546 |
|
588 |
|
64 |
|
72 |
|
Mechanical
Properties |
|
550 |
|
|
|
8277 |
|
3370 |
|
0.228 |
|
Stress-Optical
Coefficient |
|
|
|
Coloration
Code |
|
34/29 |
|
|
|
Other
Properties |
|
2.90 |
|
|
|
Internal
Transmittance |
|
|
|
2400 |
0.90 |
0.81 |
2200 |
0.935 |
0.874 |
2000 |
0.981 |
0.963 |
1800 |
0.991 |
0.982 |
1600 |
0.997 |
0.994 |
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 |
0.998 |
0.997 |
650 |
0.998 |
0.996 |
600 |
0.998 |
0.996 |
550 |
0.998 |
0.996 |
500 |
0.997 |
0.995 |
480 |
0.997 |
0.994 |
460 |
0.996 |
0.993 |
440 |
0.996 |
0.992 |
420 |
0.996 |
0.992 |
400 |
0.995 |
0.991 |
390 |
0.993 |
0.987 |
380 |
0.991 |
0.982 |
370 |
0.988 |
0.976 |
360 |
0.980 |
0.960 |
350 |
0.964 |
0.930 |
340 |
0.931 |
0.867 |
330 |
0.87 |
0.76 |
320 |
0.78 |
0.61 |
310 |
0.64 |
0.41 |
300 |
0.44 |
0.19 |
290 |
0.22 |
0.05 |
280 |
0.07 |
|
|
1.55248 
63.36
0.008720 
1.55456 
63.10
0.008788