Refractive
Indices |
|
|
|
|
706.5 |
1.56860 |
|
656.3 |
1.57090 |
|
643.8 |
1.57155 |
|
632.8 |
1.57216 |
|
589.3 |
1.57490 |
|
587.6 |
1.57502 |
|
546.1 |
1.57833 |
|
486.1 |
1.58482 |
|
480.0 |
1.58564 |
|
435.8 |
1.59281 |
|
404.7 |
1.59968 |
|
365.0 |
1.61197 |
|
|
|
|
|
|
|
Constants of Dispersion
Formula |
|
2.4245509 |
|
-7.9714057 10 |
|
1.914989210 |
|
3.550509810 |
|
1.394188210 |
|
1.705772010 |
|
Relative Partial Dispersions
|
|
0.2965 |
|
0.2465 |
|
0.2374 |
|
0.2344 |
|
0.5743 |
|
0.5083 |
|
|
|
-0.0009 |
|
-0.0010 |
|
Chemical
Properties |
|
Grade |
.gif)
|
3 |
.gif)
|
1 |
|
1 |
|
1 |
|
ThermalProperties |
.gif)
|
420 |
.gif)
|
470 |
|
|
|
|
|
97 |
|
|
|
Mechanical
Properties |
|
410 |
|
0.58 |
|
5654 |
|
2344 |
|
0.206 |
|
Stress-Optical
Coefficient |
|
|
|
Coloration
Code |
|
34/31 |
|
|
|
Other
Properties |
|
3.18 |
|
|
|
Internal
Transmittance |
|
|
|
2400 |
0.87 |
0.75 |
2200 |
0.941 |
0.885 |
2000 |
0.970 |
0.941 |
1800 |
0.985 |
0.970 |
1600 |
0.996 |
0.992 |
1400 |
0.999 |
0.998 |
1200 |
0.999 |
0.998 |
1060 |
0.999 |
0.998 |
1000 |
0.999 |
0.999 |
950 |
0.999 |
0.999 |
900 |
0.999 |
0.999 |
850 |
0.999 |
0.999 |
800 |
0.999 |
0.999 |
700 |
0.999 |
0.999 |
650 |
0.999 |
0.999 |
600 |
0.999 |
0.999 |
550 |
0.999 |
0.999 |
500 |
0.999 |
0.999 |
480 |
0.999 |
0.999 |
460 |
0.999 |
0.999 |
440 |
0.999 |
0.999 |
420 |
0.999 |
0.999 |
400 |
0.999 |
0.997 |
390 |
0.998 |
0.996 |
380 |
0.996 |
0.992 |
370 |
0.994 |
0.989 |
360 |
0.989 |
0.979 |
350 |
0.976 |
0.952 |
340 |
0.94 |
0.87 |
330 |
0.81 |
0.65 |
320 |
0.45 |
0.21 |
310 |
0.05 |
|
300 |
|
|
290 |
|
|
280 |
|
|
|
1.57502 
41.31
0.013920 
1.57833 
41.03
0.014097