1. Home
  2. Products
  3. Optical Filter Glass
  4. Matt Filter Plates
  5. Longpass
  6. N-WG295

N-WG295

N-WG is a colorless longpass filter with different cutoffs in the UV range, transmitting in the visible and IR 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.

N-WG295
Spectral values guaranteed
λs (τi = 0.00001) [nm] 250
λc (τi = 0.5) [nm] 295 ± 6
Select product
$00.00
Need help or a quote?
CONTACT OUR SUPPORT
Download Data sheet N-WG295
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
N-WG295 - N-WG295
Thickness
2.0
Reflection factor
0.9189
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 0.002
280 0.064
290 0.326
300 0.639
310 0.837
320 0.928
330 0.963
340 0.979
350 0.986
360 0.989
370 0.991
380 0.992
390 0.993
400 0.993
410 0.994
420 0.994
430 0.995
440 0.995
450 0.995
460 0.995
470 0.996
480 0.996
490 0.996
λ [nm]
500 0.997
510 0.997
520 0.997
530 0.997
540 0.997
550 0.998
560 0.998
570 0.998
580 0.998
590 0.998
600 0.998
610 0.998
620 0.999
630 0.999
640 0.999
650 0.999
660 0.999
670 0.999
680 0.999
690 0.999
700 1.000
710 1.000
720 1.000
730 1.000
740 1.000
750 1.000
760 1.000
770 1.000
780 1.000
790 1.000
λ [nm]
800 1.000
810 1.000
820 1.000
830 1.000
840 1.000
850 1.000
860 1.000
870 1.000
880 1.000
890 1.000
900 1.000
910 1.000
920 1.000
930 1.000
940 1.000
950 1.000
960 1.000
970 1.000
980 1.000
990 1.000
1,000 1.000
1,010 1.000
1,020 1.000
1,030 1.000
1,040 1.000
1,050 1.000
1,060 1.000
1,070 1.000
1,080 1.000
1,090 1.000
λ [nm]
1,100 1.000
1,110 1.000
1,120 1.000
1,130 1.000
1,140 1.000
1,150 1.000
1,160 1.000
1,170 1.000
1,180 1.000
1,190 1.000
1,200 1.000
1,250 1.000
1,300 1.000
1,350 1.000
1,400 0.999
1,450 1.000
1,500 1.000
1,550 1.000
1,600 1.000
1,650 1.000
1,700 1.000
1,750 1.000
1,800 0.999
1,850 0.998
1,900 0.996
1,950 0.995
2,000 0.993
2,050 0.991
2,100 0.986
2,150 0.983
λ [nm]
2,200 0.976
2,250 0.973
2,300 0.975
2,350 0.971
2,400 0.965
2,450 0.959
2,500 0.952
2,550 0.946
2,600 0.939
2,650 0.926
2,700 0.854
2,750 0.420
2,800 0.358
2,850 0.399
2,900 0.424
2,950 0.442
3,000 0.451
3,050 0.454
3,100 0.452
3,150 0.447
3,200 0.436
3,250 0.426
3,300 0.409
3,350 0.385
3,400 0.357
3,450 0.324
3,500 0.288
3,550 0.249
3,600 0.220
3,650 0.202
λ [nm]
3,700 0.213
3,750 0.245
3,800 0.256
3,850 0.250
3,900 0.232
3,950 0.213
4,000 0.192
4,050 0.175
4,100 0.157
4,150 0.134
4,200 0.111
4,250 0.088
4,300 0.064
4,350 0.041
4,400 0.022
4,450 0.010
4,500 0.004
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 0.919
Reference thickness
d [mm] 2
Spectral values guaranteed
λs (τi = 0.00001) [nm] 250
λc (τi = 0.5) [nm] 295 ± 6
Refractive Indices n
nF (486.1 nm) = 1.523
n (296.7 nm) = 1.550
nh (404.7 nm) = 1.531
ng (435.8 nm) = 1.528
ns (852.1 nm) = 1.510
ne (546.1 nm) = 1.520
nd (587.6 nm) = 1.518
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
Physical values
Density
p [g/cm3] 2.51
Bubble content
Bubble class 1
Transformation temperature
Tg [°C] 565
Temperature coefficient
Tk [nm/°C] 0.06
Chemical Resistance
FR class 0
SR class 1.0
AR class 2.0
Thermal expansion
α-30°C/+70°C [10-6/K] 7.2
α20°C/300°C [10-6/K] 8.4
α20°C/200°C [10-6/K]
Back