Refractive
Indices |
|
|
|
|
706.5 |
1.65577 |
|
656.3 |
1.65878 |
|
643.8 |
1.65965 |
|
632.8 |
1.66045 |
|
589.3 |
1.66410 |
|
587.6 |
1.66426 |
|
546.1 |
1.66871 |
|
486.1 |
1.67752 |
|
480.0 |
1.67864 |
|
435.8 |
1.68851 |
|
404.7 |
1.69805 |
|
365.0 |
1.71548 |
|
|
|
|
|
|
|
Constants of Dispersion
Formula |
|
2.6938657 |
|
-1.0428693 10 |
|
2.383882310 |
|
1.427777910 |
|
-8.749012310 |
|
8.871850410 |
|
Relative Partial Dispersions
|
|
0.2924 |
|
0.2430 |
|
0.2371 |
|
0.2339 |
|
0.5862 |
|
0.5196 |
|
|
|
-0.0001 |
|
0.0009 |
|
Chemical
Properties |
|
Grade |
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|
1 |
.gif)
|
3 |
|
1 |
|
1 |
|
ThermalProperties |
.gif)
|
533 |
.gif)
|
596 |
|
467 |
|
516 |
|
63 |
|
69 |
|
Mechanical
Properties |
|
422 |
|
|
|
6589 |
|
2660 |
|
0.239 |
|
Stress-Optical
Coefficient |
|
|
|
Coloration Code |
|
39/34 |
|
|
|
Other Properties |
|
3.95 |
|
|
|
Internal
Transmittance |
|
|
|
2400 |
0.964 |
0.930 |
2200 |
0.969 |
0.939 |
2000 |
0.989 |
0.978 |
1800 |
0.994 |
0.989 |
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 |
0.997 |
0.995 |
700 |
0.997 |
0.994 |
650 |
0.996 |
0.993 |
600 |
0.996 |
0.993 |
550 |
0.996 |
0.993 |
500 |
0.995 |
0.990 |
480 |
0.994 |
0.988 |
460 |
0.992 |
0.984 |
440 |
0.989 |
0.978 |
420 |
0.982 |
0.965 |
400 |
0.965 |
0.931 |
390 |
0.945 |
0.893 |
380 |
0.915 |
0.837 |
370 |
0.87 |
0.75 |
360 |
0.76 |
0.58 |
350 |
0.57 |
0.33 |
340 |
0.26 |
0.07 |
330 |
|
|
320 |
|
|
310 |
|
|
300 |
|
|
290 |
|
|
280 |
|
|
|
1.66426 
35.45
0.018740 
1.66871 
35.21
0.018992