KG5 Data Sheet
Sydor Optics offers Optical Wedges, Optical Filters, and Witness Samples made from the SCHOTT KG5 substrate material. If you have questions or need help selecting the ideal material for your application, please contact a Sales Engineer, who will gladly assist you with your needs or discuss additional options that may be available.
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| Refractive Indices |
| Pd |
0.921 |
| Reference thickness |
| d [mm] |
2 |
| Spectral values guaranteed |
| τi (365nm)≥0.8 |
| τi (500nm)≥0.86 |
| τi (600nm)≥0.8 |
| τi (700nm)≤0.43 |
| τi (800nm)≤0.09 |
| τi (900nm)≤0.008 |
| τi (1060nm)≤0.0001 |
| τi (2200nm)≤0.001 |
| Refractive Index n |
| ni (365.0 nm) = 1.530 |
| nd (587.6 nm) = 1.510 |
| |
| |
| |
|
| Density |
| ρ [g/cm3] |
2.53 |
| Bubble content |
| Bubble class |
3 |
| Chemical Resistance |
| FR class |
0 |
| SR class |
3.0 |
| AR class |
4.0 |
| Transformation temperature |
| Tg [°C] |
565 |
| Thermal expansion |
| α-30/+70°C [10-6/K] |
5.4 |
| α20/300°C [10-6/K] |
6.2 |
| α20/200°C [10-6/K] |
|
| Temperature coefficient |
TK [nm/°C] |
| |
| |
| |
|
| Notes |
| Ionically colored glass |
| Shortpass filter |
| Heat protection filter |
| |
|
| Long-term changes in the polished |
| surface are possible under some |
| circumstances. |
|
| Transmission changes are possible |
| under the action of intense |
| ultraviolet radiation. |
| |
All data without tolerances are to be |
| understood to be reference values. |
| Guaranteed values are only those |
| values listed in the section |
| “Spectral values guaranteed”. |
|
Colorimetric evaluation
| Illuminant |
A (Planck T = 2856 K) |
| d [mm] |
1 |
2 |
3 |
| x |
0.440 |
0.434 |
0.427 |
| y |
0.411 |
0.415 |
0.418 |
| Y |
85 |
78 |
72 |
| λd [nm] |
504 |
505 |
505 |
| Pe |
0.02 |
0.03 |
0.05 |
|
| Illuminant |
Planck T = 3200 K |
| d [mm] |
1 |
2 |
3 |
| x |
0.416 |
0.410 |
0.404 |
| y |
0.402 |
0.406 |
0.409 |
| Y |
85 |
78 |
72 |
| λd [nm] |
503 |
503 |
503 |
| Pe |
0.02 |
0.03 |
0.05 |
|
| Illuminant |
D65 (TC = 6504 K) |
| d [mm] |
1 |
2 |
3 |
| x |
0.308 |
0.304 |
0.300 |
| y |
0.331 |
0.332 |
0.334 |
| Y |
85 |
79 |
74 |
| λd [nm] |
496 |
496 |
496 |
| Pe |
0.02 |
0.03 |
0.04 |
|
|
Internal transmittance τi at reference thickness d = 2 mm
The internal transmittance values, tabulated and graphically represented, are reference values only
| λ [nm] |
τi |
| 200 |
< 10-5 |
| 210 |
< 10-5 |
| 220 |
< 10-5 |
| 230 |
< 10-5 |
| 240 |
< 10-5 |
| 250 |
< 10-5 |
| 260 |
< 10-5 |
| 270 |
< 10-5 |
| 280 |
2.8·10-5 |
| 290 |
1.9·10-3 |
| 300 |
2.2·10-2 |
| 310 |
0.114 |
| 320 |
0.295 |
| 330 |
0.516 |
| 340 |
0.684 |
| 350 |
0.795 |
| 360 |
0.869 |
| 370 |
0.898 |
| 380 |
0.909 |
| 390 |
0.900 |
| 400 |
0.877 |
| 410 |
0.862 |
| 420 |
0.850 |
| 430 |
0.851 |
| 440 |
0.862 |
| 450 |
0.865 |
| 460 |
0.862 |
| 470 |
0.872 |
| 480 |
0.879 |
| 490 |
0.884 |
|
| λ [nm] |
τi |
| 500 |
0.888 |
| 510 |
0.885 |
| 520 |
0.878 |
| 530 |
0.874 |
| 540 |
0.881 |
| 550 |
0.890 |
| 560 |
0.892 |
| 570 |
0.887 |
| 580 |
0.877 |
| 590 |
0.860 |
| 600 |
0.838 |
| 610 |
0.810 |
| 620 |
0.777 |
| 630 |
0.738 |
| 640 |
0.696 |
| 650 |
0.650 |
| 660 |
0.604 |
| 670 |
0.555 |
| 680 |
0.505 |
| 690 |
0.450 |
| 700 |
0.398 |
| 710 |
0.347 |
| 720 |
0.299 |
| 730 |
0.255 |
| 740 |
0.214 |
| 750 |
0.178 |
| 760 |
0.145 |
| 770 |
0.116 |
| 780 |
9.2·10-2 |
| 790 |
7.2·10-2 |
|
| λ [nm] |
τi |
| 800 |
5.6·10-2 |
| 810 |
4.2·10-2 |
| 820 |
3.2·10-2 |
| 830 |
2.3·10-2 |
| 840 |
1.6·10-2 |
| 850 |
1.1·10-2 |
| 860 |
7.7·10-3 |
| 870 |
5.3·10-3 |
| 880 |
3.8·10-3 |
| 890 |
2.7·10-3 |
| 900 |
2.0·10-3 |
| 910 |
1.4·10-3 |
| 920 |
1.0·10-3 |
| 930 |
7.3·10-4 |
| 940 |
5.3·10-4 |
| 950 |
3.9·10-4 |
| 960 |
2.9·10-4 |
| 970 |
2.2·10-4 |
| 980 |
1.6·10-4 |
| 990 |
1.3·10-4 |
| 1000 |
9.9·10-5 |
| 1010 |
7.8·10-5 |
| 1020 |
6.2·10-5 |
| 1030 |
4.9·10-5 |
| 1040 |
4.1·10-5 |
| 1050 |
3.5·10-5 |
| 1060 |
3.0·10-5 |
| 1070 |
2.6·10-5 |
| 1080 |
2.3·10-5 |
| 1090 |
2.1·10-5 |
|
| λ [nm] |
τi |
| 1100 |
1.9·10-5 |
| 1110 |
1.7·10-5 |
| 1120 |
1.5·10-5 |
| 1130 |
1.4·10-5 |
| 1140 |
1.2·10-5 |
| 1150 |
1.1·10-5 |
| 1160 |
1.0·10-5 |
| 1170 |
< 10-5 |
| 1180 |
< 10-5 |
| 1190 |
< 10-5 |
| 1200 |
< 10-5 |
| 1250 |
< 10-5 |
| 1300 |
< 10-5 |
| 1350 |
1.0·10-5 |
| 1400 |
1.5·10-5 |
| 1450 |
2.6·10-5 |
| 1500 |
4.5·10-5 |
| 1550 |
8.5·10-5 |
| 1600 |
1.5·10-4 |
| 1650 |
2.7·10-4 |
| 1700 |
4.4·10-4 |
| 1750 |
5.8·10-4 |
| 1800 |
6.6·10-4 |
| 1850 |
6.9·10-4 |
| 1900 |
6.5·10-4 |
| 1950 |
6.0·10-4 |
| 2000 |
5.6·10-4 |
| 2050 |
5.1·10-4 |
| 2100 |
4.9·10-4 |
| 2150 |
4.9·10-4 |
|
| λ [nm] |
τi |
| 2200 |
5.4·10-4 |
| 2250 |
6.5·10-4 |
| 2300 |
8.3·10-4 |
| 2350 |
1.1·10-3 |
| 2400 |
1.5·10-3 |
| 2450 |
2.1·10-3 |
| 2500 |
2.9·10-3 |
| 2550 |
4.1·10-3 |
| 2600 |
5.3·10-3 |
| 2650 |
6.6·10-3 |
| 2700 |
7.9·10-3 |
| 2750 |
5.6·10-3 |
| 2800 |
8.9·10-4 |
| 2850 |
2.8·10-4 |
| 2900 |
2.0·10-4 |
| 2950 |
1.9·10-4 |
| 3000 |
1.8·10-4 |
| 3050 |
1.9·10-4 |
| 3100 |
2.1·10-4 |
| 3150 |
2.3·10-4 |
| 3200 |
2.7·10-4 |
| 3250 |
3.1·10-4 |
| 3300 |
3.6·10-4 |
| 3350 |
4.3·10-4 |
| 3400 |
5.6·10-4 |
| 3450 |
7.3·10-4 |
| 3500 |
9.3·10-4 |
| 3550 |
1.2·10-3 |
| 3600 |
1.6·10-3 |
| 3650 |
1.9·10-3 |
|
| λ [nm] |
τi |
| 3700 |
2.2·10-3 |
| 3750 |
2.0·10-3 |
| 3800 |
1.6·10-3 |
| 3850 |
1.0·10-3 |
| 3900 |
4.6·10-4 |
| 3950 |
1.9·10-4 |
| 4000 |
7.4·10-5 |
| 4050 |
3.6·10-5 |
| 4100 |
1.6·10-5 |
| 4150 |
< 10-5 |
| 4200 |
< 10-5 |
| 4250 |
< 10-5 |
| 4300 |
< 10-5 |
| 4350 |
< 10-5 |
| 4400 |
< 10-5 |
| 4450 |
< 10-5 |
| 4500 |
< 10-5 |
| 4550 |
< 10-5 |
| 4600 |
< 10-5 |
| 4650 |
< 10-5 |
| 4700 |
< 10-5 |
| 4750 |
< 10-5 |
| 4800 |
< 10-5 |
| 4850 |
< 10-5 |
| 4900 |
< 10-5 |
| 4950 |
< 10-5 |
| 5000 |
< 10-5 |
| 5050 |
< 10-5 |
| 5100 |
< 10-5 |
| 5150 |
< 10-5 |
|
