Refractive
Indices |
|
|
|
|
706.5 |
1.53536 |
|
656.3 |
1.53729 |
|
643.8 |
1.53783 |
|
632.8 |
1.53834 |
|
589.3 |
1.54062 |
|
587.6 |
1.54072 |
|
546.1 |
1.54344 |
|
486.1 |
1.54875 |
|
480.0 |
1.54941 |
|
435.8 |
1.55519 |
|
404.7 |
1.56068 |
|
365.0 |
1.57033 |
|
|
|
|
|
|
|
Constants of Dispersion
Formula |
|
2.3287431 |
|
-7.8679800 10 |
|
1.576385410 |
|
1.979423510 |
|
1.800289210 |
|
3.653347410 |
|
Relative Partial Dispersions
|
|
0.2993 |
|
0.2493 |
|
0.2377 |
|
0.2351 |
|
0.5628 |
|
0.4990 |
|
|
|
-0.0009 |
|
-0.0025 |
|
Chemical
Properties |
|
Grade |
.gif)
|
3 |
.gif)
|
1 |
|
2 |
|
1 |
|
ThermalProperties |
.gif)
|
440 |
.gif)
|
502 |
|
383 |
|
426 |
|
88 |
|
95 |
|
Mechanical
Properties |
|
397 |
|
|
|
6175 |
|
2551 |
|
0.210 |
|
Stress-Optical
Coefficient |
|
|
|
Coloration
Code |
|
33/31 |
|
|
|
Other
Properties |
|
2.86 |
|
|
|
Internal
Transmittance |
|
|
|
2400 |
0.87 |
0.76 |
2200 |
0.909 |
0.827 |
2000 |
0.955 |
0.912 |
1800 |
0.983 |
0.966 |
1600 |
0.999 |
0.998 |
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 |
0.998 |
0.997 |
600 |
0.998 |
0.997 |
550 |
0.998 |
0.997 |
500 |
0.998 |
0.997 |
480 |
0.998 |
0.996 |
460 |
0.997 |
0.995 |
440 |
0.997 |
0.995 |
420 |
0.997 |
0.995 |
400 |
0.997 |
0.995 |
390 |
0.996 |
0.993 |
380 |
0.994 |
0.989 |
370 |
0.994 |
0.988 |
360 |
0.991 |
0.983 |
350 |
0.984 |
0.968 |
340 |
0.964 |
0.930 |
330 |
0.912 |
0.832 |
320 |
0.76 |
0.58 |
310 |
0.40 |
0.16 |
300 |
0.10 |
0.01 |
290 |
|
|
280 |
|
|
|
1.54072 
47.20
0.011457 
1.54344 
46.92
0.011583