GG420

GG420

A longpass filter with low transmission in short wavelengths range and high transmission in long wavelength ranges.

Find more information in the tabs below or on our website.

Use our Interactive Filter Diagram to compare this filter or download our Filter Calculation Tool.

For customized filter products you can mark an article and use the request-button.

*product image is exemplary.

Spectral values guaranteed
λs (τi = 0.00001) [nm] 360
λc (τi = 0.5) [nm] 420 ± 6
λp1 (τi = 0.92) [nm] 530
Download Data sheet
Glass type
 Article L
 W
 T
 Weight

Only values between 1 and 30 with one decimal place are allowed.

SCHOTT
GG420 - GG420
Thickness
3.0
Reflection factor
0.9183
λ [nm]
200 < 10⁻³
210 < 10⁻³
220 < 10⁻³
230 < 10⁻³
240 < 10⁻³
250 < 10⁻³
260 < 10⁻³
270 < 10⁻³
280 < 10⁻³
290 < 10⁻³
300 < 10⁻³
310 < 10⁻³
320 < 10⁻³
330 < 10⁻³
340 < 10⁻³
350 < 10⁻³
360 < 10⁻³
370 < 10⁻³
380 < 10⁻³
390 < 10⁻³
400 < 10⁻³
410 0.061
420 0.479
430 0.770
440 0.855
450 0.885
460 0.903
470 0.918
480 0.930
490 0.941
λ [nm]
500 0.950
510 0.958
520 0.964
530 0.970
540 0.975
550 0.978
560 0.981
570 0.983
580 0.984
590 0.985
600 0.986
610 0.986
620 0.986
630 0.985
640 0.985
650 0.984
660 0.983
670 0.983
680 0.981
690 0.980
700 0.979
710 0.978
720 0.977
730 0.975
740 0.974
750 0.972
760 0.971
770 0.969
780 0.968
790 0.966
λ [nm]
800 0.965
810 0.964
820 0.962
830 0.961
840 0.960
850 0.958
860 0.957
870 0.956
880 0.955
890 0.954
900 0.953
910 0.952
920 0.952
930 0.951
940 0.951
950 0.950
960 0.950
970 0.949
980 0.949
990 0.949
1,000 0.948
1,010 0.948
1,020 0.948
1,030 0.948
1,040 0.947
1,050 0.947
1,060 0.947
1,070 0.947
1,080 0.947
1,090 0.946
λ [nm]
1,100 0.946
1,110 0.946
1,120 0.946
1,130 0.947
1,140 0.947
1,150 0.947
1,160 0.947
1,170 0.947
1,180 0.947
1,190 0.947
1,200 0.947
1,250 0.948
1,300 0.950
1,350 0.953
1,400 0.952
1,450 0.958
1,500 0.963
1,550 0.966
1,600 0.969
1,650 0.970
1,700 0.970
1,750 0.970
1,800 0.968
1,850 0.966
1,900 0.965
1,950 0.963
2,000 0.961
2,050 0.959
2,100 0.956
2,150 0.950
λ [nm]
2,200 0.938
2,250 0.934
2,300 0.938
2,350 0.938
2,400 0.932
2,450 0.921
2,500 0.914
2,550 0.910
2,600 0.906
2,650 0.889
2,700 0.812
2,750 0.324
2,800 0.240
2,850 0.250
2,900 0.267
2,950 0.278
3,000 0.283
3,050 0.279
3,100 0.269
3,150 0.255
3,200 0.240
3,250 0.224
3,300 0.206
3,350 0.191
3,400 0.176
3,450 0.164
3,500 0.158
3,550 0.155
3,600 0.153
3,650 0.154
λ [nm]
3,700 0.157
3,750 0.164
3,800 0.172
3,850 0.177
3,900 0.179
3,950 0.174
4,000 0.166
4,050 0.155
4,100 0.141
4,150 0.123
4,200 0.105
4,250 0.086
4,300 0.066
4,350 0.046
4,400 0.024
4,450 0.009
4,500 0.003
4,550 < 10⁻³
4,600 < 10⁻³
4,650 < 10⁻³
4,700 < 10⁻³
4,750 < 10⁻³
4,800 < 10⁻³
4,850 < 10⁻³
4,900 < 10⁻³
4,950 < 10⁻³
5,000 < 10⁻³
5,050 < 10⁻³
5,100 < 10⁻³
5,150 < 10⁻³
Reflection factor
Pd 0.918
Reference thickness
d [mm] 3
Spectral values guaranteed
λs (τi = 0.00001) [nm] 360
λc (τi = 0.5) [nm] 420 ± 6
λp1 (τi = 0.92) [nm] 530
Refractive Indices n
ns (852.1 nm) = 1.520
ne (546.1 nm) = 1.530
nd (587.6 nm) = 1.520

Colorimetric evaluation

Illuminant A(Planck T = 2347K)
d [mm] 1 2 3
x 0.450 0.453 0.455
y 0.410 0.412 0.414
Y 91 90 90
λd [nm] 581 581 581
Pe 0.04 0.07 0.10
Illuminant Planck T = 3200 K
d [mm] 1 2 3
x 0.426 0.429 0.432
y 0.403 0.405 0.408
Y 91 90 90
λd [nm] 579 579 579
Pe 0.04 0.07 0.10
Illuminant D65 (TC = 6504 K)
d [mm] 1 2 3
x 0.317 0.320 0.324
y 0.337 0.342 0.348
Y 91 90 89
λd [nm] 569 570 570
Pe 0.03 0.06 0.08
Density
p [g/cm3] 2.55
Bubble content
Bubble class 3
Transformation temperature
Tg [°C] 535
Temperature coefficient
Tk [nm/°C] 0.07
Chemical Resistance
FR class 0
SR class 1.0
AR class 1.0
Thermal expansion
α-30°C/+70°C [10-6/K] 7.8
α20°C/300°C [10-6/K] 9
α20°C/200°C [10-6/K]
Back