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NG11

NG11

Neutral filters exhibit almost constant attenuation inside the visible spectrum. They appear grey.

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.

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*product image is exemplary.

Spectral values guaranteed
τi (405nm) =0.76± 0,02
τi (546nm) =0.77± 0,02
τi (694nm) =0.79± 0,02
Glass type
Article L
W
T
Weight

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

SCHOTT
NG11 - NG11
Thickness
1.0
Reflection factor
0.9234
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 0.007
330 0.074
340 0.239
350 0.424
360 0.567
370 0.629
380 0.597
390 0.717
400 0.753
410 0.748
420 0.747
430 0.754
440 0.752
450 0.756
460 0.779
470 0.779
480 0.777
490 0.775
λ [nm]
500 0.772
510 0.773
520 0.777
530 0.781
540 0.784
550 0.783
560 0.782
570 0.777
580 0.773
590 0.770
600 0.771
610 0.772
620 0.772
630 0.771
640 0.769
650 0.768
660 0.769
670 0.774
680 0.781
690 0.789
700 0.792
710 0.793
720 0.791
730 0.786
740 0.782
750 0.776
760 0.770
770 0.765
780 0.758
790 0.751
λ [nm]
800 0.744
810 0.738
820 0.730
830 0.722
840 0.717
850 0.709
860 0.703
870 0.694
880 0.685
890 0.681
900 0.675
910 0.670
920 0.664
930 0.660
940 0.655
950 0.652
960 0.645
970 0.643
980 0.639
990 0.636
1,000 0.633
1,010 0.631
1,020 0.628
1,030 0.626
1,040 0.624
1,050 0.624
1,060 0.623
1,070 0.622
1,080 0.621
1,090 0.622
λ [nm]
1,100 0.624
1,110 0.625
1,120 0.627
1,130 0.628
1,140 0.629
1,150 0.630
1,160 0.632
1,170 0.633
1,180 0.635
1,190 0.637
1,200 0.640
1,250 0.662
1,300 0.680
1,350 0.703
1,400 0.729
1,450 0.747
1,500 0.769
1,550 0.779
1,600 0.784
1,650 0.784
1,700 0.783
1,750 0.783
1,800 0.783
1,850 0.784
1,900 0.790
1,950 0.793
2,000 0.800
2,050 0.806
2,100 0.810
2,150 0.810
λ [nm]
2,200 0.810
2,250 0.812
2,300 0.820
2,350 0.823
2,400 0.820
2,450 0.820
2,500 0.820
2,550 0.820
2,600 0.820
2,650 0.813
2,700 0.740
2,750 0.255
2,800 0.120
2,850 0.115
2,900 0.130
2,950 0.153
3,000 0.176
3,050 0.207
3,100 0.240
3,150 0.275
3,200 0.309
3,250 0.342
3,300 0.352
3,350 0.341
3,400 0.290
3,450 0.219
3,500 0.150
3,550 0.102
3,600 0.074
3,650 0.063
λ [nm]
3,700 0.080
3,750 0.116
3,800 0.158
3,850 0.172
3,900 0.157
3,950 0.130
4,000 0.106
4,050 0.106
4,100 0.106
4,150 0.112
4,200 0.116
4,250 0.107
4,300 0.087
4,350 0.060
4,400 0.042
4,450 0.029
4,500 0.017
4,550 0.010
4,600 0.006
4,650 0.003
4,700 0.002
4,750 0.001
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 0.923
Reference thickness
d [mm] 1
Spectral values guaranteed
τi (405nm) =0.76± 0,02
τi (546nm) =0.77± 0,02
τi (694nm) =0.79± 0,02
Refractive Indices n
nF (486.1 nm) = 1.504
nh (404.7 nm) = 1.512
ng (435.8 nm) = 1.508
ns (852.1 nm) = 1.492
ne (546.1 nm) = 1.500
nd (587.6 nm) = 1.499

Colorimetric evaluation

Illuminant A(Planck T = 2347K)
d [mm] 1 2 3
x
y
Y
λd [nm]
Pe
Illuminant Planck T = 3200 K
d [mm] 1 2 3
x
y
Y
λd [nm]
Pe
Illuminant D65 (TC = 6504 K)
d [mm] 1 2 3
x
y
Y
λd [nm]
Pe
Density
p [g/cm3] 2.4098
Bubble content
Bubble class 2
Transformation temperature
Tg [°C] 481
Temperature coefficient
Tk [nm/°C]
Chemical Resistance
FR class 1
SR class 3.4
AR class 2.0
Thermal expansion
α-30°C/+70°C [10-6/K] 6.67
α20°C/300°C [10-6/K] 7.2
α20°C/200°C [10-6/K] 7