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GG495

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

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GG495
Spectral values guaranteed
λs (τi = 0.00001) [nm] 430
λc (τi = 0.5) [nm] 495 ± 6
λp1 (τi = 0.92) [nm] 560
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Download Data sheet GG495
Article Details
SCHOTT
Article
Glass type
L
W
T
Weight
 
Technical Details
Internal Transmittance (Chart)

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

SCHOTT
GG495 - GG495
Thickness
3.0
Reflection factor
0.9174
Internal Transmittance (Table)
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 < 10⁻³
420 < 10⁻³
430 < 10⁻³
440 < 10⁻³
450 < 10⁻³
460 < 10⁻³
470 < 10⁻³
480 0.003
490 0.218
λ [nm]
500 0.732
510 0.918
520 0.962
530 0.976
540 0.982
550 0.986
560 0.988
570 0.989
580 0.989
590 0.989
600 0.989
610 0.988
620 0.987
630 0.986
640 0.985
650 0.984
660 0.982
670 0.981
680 0.979
690 0.978
700 0.976
710 0.975
720 0.973
730 0.971
740 0.969
750 0.968
760 0.966
770 0.964
780 0.962
790 0.960
λ [nm]
800 0.959
810 0.957
820 0.955
830 0.954
840 0.952
850 0.951
860 0.949
870 0.948
880 0.947
890 0.946
900 0.944
910 0.943
920 0.942
930 0.941
940 0.941
950 0.940
960 0.939
970 0.939
980 0.938
990 0.938
1,000 0.937
1,010 0.937
1,020 0.936
1,030 0.936
1,040 0.936
1,050 0.936
1,060 0.936
1,070 0.935
1,080 0.935
1,090 0.935
λ [nm]
1,100 0.935
1,110 0.935
1,120 0.935
1,130 0.935
1,140 0.935
1,150 0.936
1,160 0.936
1,170 0.936
1,180 0.936
1,190 0.936
1,200 0.936
1,250 0.938
1,300 0.941
1,350 0.943
1,400 0.944
1,450 0.951
1,500 0.956
1,550 0.960
1,600 0.963
1,650 0.965
1,700 0.966
1,750 0.965
1,800 0.964
1,850 0.962
1,900 0.959
1,950 0.957
2,000 0.955
2,050 0.953
2,100 0.950
2,150 0.945
λ [nm]
2,200 0.933
2,250 0.929
2,300 0.932
2,350 0.931
2,400 0.926
2,450 0.917
2,500 0.908
2,550 0.901
2,600 0.896
2,650 0.881
2,700 0.812
2,750 0.341
2,800 0.244
2,850 0.250
2,900 0.261
2,950 0.271
3,000 0.275
3,050 0.269
3,100 0.256
3,150 0.241
3,200 0.226
3,250 0.211
3,300 0.193
3,350 0.175
3,400 0.160
3,450 0.149
3,500 0.144
3,550 0.141
3,600 0.139
3,650 0.140
λ [nm]
3,700 0.143
3,750 0.149
3,800 0.155
3,850 0.162
3,900 0.164
3,950 0.160
4,000 0.152
4,050 0.141
4,100 0.127
4,150 0.111
4,200 0.095
4,250 0.076
4,300 0.055
4,350 0.035
4,400 0.019
4,450 0.008
4,500 0.003
4,550 0.001
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
Optical values
Reflection factor
Pd 0.917
Reference thickness
d [mm] 3
Spectral values guaranteed
λs (τi = 0.00001) [nm] 430
λc (τi = 0.5) [nm] 495 ± 6
λp1 (τi = 0.92) [nm] 560
Refractive Indices n
nF (486.1 nm) = 1.530
nh (404.7 nm) = 1.542
ng (435.8 nm) = 1.535
ns (852.1 nm) = 1.516
ne (546.1 nm) = 1.526
nd (587.6 nm) = 1.524
Colorimetric evaluation
Illuminant A(Planck T = 2347K)
d [mm] 1 2 3
x 0.502 0.507 0.509
y 0.469 0.472 0.472
Y 89 88 88
λd [nm] 580 581 581
Pe 0.81 0.86 0.88
Illuminant Planck T = 3200 K
d [mm] 1 2 3
x 0.488 0.494 0.497
y 0.478 0.482 0.482
Y 89 88 87
λd [nm] 579 579 579
Pe 0.82 0.87 0.89
Illuminant D65 (TC = 6504 K)
d [mm] 1 2 3
x 0.422 0.433 0.438
y 0.514 0.525 0.527
Y 87 85 84
λd [nm] 570 571 571
Pe 0.82 0.89 0.90
Physical values
Density
p [g/cm3] 2.56
Bubble content
Bubble class 3
Transformation temperature
Tg [°C] 535
Temperature coefficient
Tk [nm/°C] 0.1
Chemical Resistance
FR class 0
SR class 1.0
AR class 1.0
Thermal expansion
α-30°C/+70°C [10-6/K] 8.1
α20°C/300°C [10-6/K] 9.4
α20°C/200°C [10-6/K]
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