Refractive
Indices |
|
|
|
|
706.5 |
1.74299 |
|
656.3 |
1.74729 |
|
643.8 |
1.74852 |
|
632.8 |
1.74968 |
|
589.3 |
1.75496 |
|
587.6 |
1.75520 |
|
546.1 |
1.76168 |
|
486.1 |
1.77472 |
|
480.0 |
1.77640 |
|
435.8 |
1.79126 |
|
404.7 |
1.80598 |
|
365.0 |
1.83375 |
|
|
|
|
|
|
|
Constants of Dispersion
Formula |
|
2.9684662 |
|
-1.3339731 10 |
|
3.175435510 |
|
3.703717910 |
|
-3.391937810 |
|
2.910976310 |
|
Relative Partial Dispersions
|
|
0.2884 |
|
0.2369 |
|
0.2363 |
|
0.2325 |
|
0.6029 |
|
0.5330 |
|
|
|
0.0008 |
|
0.0041 |
|
Chemical
Properties |
|
Grade |
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|
1 |
.gif)
|
3 |
|
1 |
|
2 |
|
ThermalProperties |
.gif)
|
420 |
.gif)
|
465 |
|
414 |
|
435 |
|
87 |
|
|
|
Mechanical
Properties |
|
380 |
|
0.50 |
|
5472 |
|
2250 |
|
0.216 |
|
Stress-Optical
Coefficient |
|
|
|
Coloration
Code |
|
41/35 |
|
|
|
Other
Properties |
|
4.78 |
|
|
|
Internal
Transmittance |
|
|
|
2400 |
0.930 |
0.865 |
2200 |
0.955 |
0.912 |
2000 |
0.978 |
0.956 |
1800 |
0.985 |
0.970 |
1600 |
0.992 |
0.984 |
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 |
0.994 |
460 |
0.996 |
0.993 |
440 |
0.992 |
0.984 |
420 |
0.983 |
0.966 |
400 |
0.96 |
0.92 |
390 |
0.93 |
0.87 |
380 |
0.88 |
0.78 |
370 |
0.78 |
0.61 |
360 |
0.53 |
0.29 |
350 |
0.17 |
0.03 |
340 |
|
|
330 |
|
|
320 |
|
|
310 |
|
|
300 |
|
|
290 |
|
|
280 |
|
|
|
1.75520 
27.53
0.027432 
1.76168 
27.32
0.027881