Refractive
Indices |
|
|
|
|
706.5 |
1.59834 |
|
656.3 |
1.60007 |
|
643.8 |
1.60056 |
|
632.8 |
1.60101 |
|
589.3 |
1.60302 |
|
587.6 |
1.60311 |
|
546.1 |
1.60548 |
|
486.1 |
1.61003 |
|
480.0 |
1.61059 |
|
435.8 |
1.61541 |
|
404.7 |
1.61988 |
|
365.0 |
1.62748 |
|
|
|
|
|
|
|
Constants of Dispersion
Formula |
|
2.5304905 |
|
-1.0327992 10 |
|
1.417605110 |
|
2.509307110 |
|
-7.648715610 |
|
7.328297410 |
|
Relative Partial Dispersions
|
|
0.3051 |
|
0.2544 |
|
0.2385 |
|
0.2366 |
|
0.5413 |
|
0.4806 |
|
|
|
-0.0002 |
|
-0.0012 |
|
Chemical
Properties |
|
Grade |
.gif)
|
3 |
.gif)
|
3 |
|
2 |
|
4 |
|
ThermalProperties |
.gif)
|
647 |
.gif)
|
687 |
|
590 |
|
620 |
|
66 |
|
74 |
|
Mechanical
Properties |
|
573 |
|
0.72 |
|
8460 |
|
3370 |
|
0.257 |
|
Stress-Optical
Coefficient |
|
1.99 |
|
Coloration
Code |
|
35/30 |
|
|
|
Other
Properties |
|
3.44 |
|
|
|
Internal
Transmittance |
|
|
|
2400 |
0.80 |
0.64 |
2200 |
0.88 |
0.77 |
2000 |
0.968 |
0.937 |
1800 |
0.979 |
0.958 |
1600 |
0.990 |
0.980 |
1400 |
0.995 |
0.990 |
1200 |
0.997 |
0.995 |
1060 |
0.998 |
0.996 |
1000 |
0.998 |
0.996 |
950 |
0.998 |
0.996 |
900 |
0.998 |
0.996 |
850 |
0.998 |
0.997 |
800 |
0.998 |
0.997 |
700 |
0.998 |
0.997 |
650 |
0.998 |
0.997 |
600 |
0.998 |
0.997 |
550 |
0.999 |
0.998 |
500 |
0.998 |
0.997 |
480 |
0.998 |
0.996 |
460 |
0.997 |
0.995 |
440 |
0.997 |
0.994 |
420 |
0.997 |
0.994 |
400 |
0.995 |
0.991 |
390 |
0.992 |
0.985 |
380 |
0.988 |
0.976 |
370 |
0.980 |
0.961 |
360 |
0.965 |
0.931 |
350 |
0.933 |
0.87 |
340 |
0.88 |
0.78 |
330 |
0.80 |
0.64 |
320 |
0.67 |
0.45 |
310 |
0.50 |
0.25 |
300 |
0.30 |
0.09 |
290 |
0.14 |
0.02 |
280 |
|
|
|
1.60311 
60.60
0.009952 
1.60548 
60.35
0.010033