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RG905

A longpass filter with low transmission in short wavelengths range and high transmission in long wavelength ranges. They seperate visible from infrared light.

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*product image is exemplary.

RG905.jpeg
Spectral values guaranteed
τi (405nm) ≤0.002
τi (900nm) ≥0.96
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Download Data sheet RG905
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
RG905 - RG905
Thickness
4.0
Reflection factor
0.9210
Internal Transmittance (Table)
λ [nm]
200
210
220
230
240
250
260
270
280
290
300 < 10⁻³
310 < 10⁻³
320 < 10⁻³
330
340
350
360
370 < 10⁻³
380
390
400
410 < 10⁻³
420 < 10⁻³
430 < 10⁻³
440 < 10⁻³
450 0.003
460 0.011
470 0.026
480 0.040
490 0.043
λ [nm]
500 0.040
510 0.026
520 0.013
530 0.005
540 0.003
550 0.005
560 0.010
570 0.008
580 0.002
590 < 10⁻³
600 < 10⁻³
610 < 10⁻³
620 < 10⁻³
630 < 10⁻³
640 < 10⁻³
650 < 10⁻³
660 < 10⁻³
670 0.002
680 0.017
690 0.078
700 0.216
710 0.380
720 0.518
730 0.623
740 0.704
750 0.769
760 0.822
770 0.863
780 0.896
790 0.921
λ [nm]
800 0.939
810 0.952
820 0.961
830 0.967
840 0.972
850 0.974
860 0.976
870 0.976
880 0.977
890 0.976
900 0.975
910 0.974
920 0.973
930 0.971
940 0.968
950 0.965
960 0.962
970 0.957
980 0.952
990 0.946
1,000 0.938
1,010 0.929
1,020 0.918
1,030 0.905
1,040 0.890
1,050 0.872
1,060 0.851
1,070 0.827
1,080 0.801
1,090 0.771
λ [nm]
1,100 0.740
1,110 0.706
1,120 0.669
1,130 0.632
1,140 0.593
1,150 0.555
1,160 0.515
1,170 0.477
1,180 0.440
1,190 0.405
1,200 0.374
1,250 0.261
1,300 0.229
1,350 0.255
1,400 0.264
1,450 0.224
1,500 0.195
1,550 0.201
1,600 0.232
1,650 0.251
1,700 0.245
1,750 0.240
1,800 0.256
1,850 0.302
1,900 0.369
1,950 0.444
2,000 0.511
2,050 0.563
2,100 0.606
2,150 0.642
λ [nm]
2,200 0.668
2,250 0.695
2,300 0.723
2,350 0.742
2,400 0.753
2,450 0.753
2,500 0.746
2,550 0.738
2,600 0.727
2,650 0.711
2,700 0.673
2,750 0.441
2,800 0.304
2,850 0.277
2,900 0.267
2,950 0.254
3,000 0.232
3,050 0.205
3,100 0.176
3,150 0.148
3,200 0.123
3,250 0.102
3,300 0.084
3,350 0.070
3,400 0.059
3,450 0.052
3,500 0.046
3,550 0.044
3,600 0.043
3,650 0.043
λ [nm]
3,700 0.044
3,750 0.046
3,800 0.049
3,850 0.053
3,900 0.058
3,950 0.062
4,000 0.063
4,050 0.059
4,100 0.051
4,150 0.041
4,200 0.031
4,250 0.022
4,300 0.015
4,350 0.009
4,400 0.005
4,450 0.002
4,500 < 10⁻³
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
Optical values
Reflection factor
Pd 0.921
Reference thickness
d [mm] 4
Spectral values guaranteed
τi (405nm) ≤0.002
τi (900nm) ≥0.96
Refractive Indices n
nF (486.1 nm) = 1.516
nh (404.7 nm) = 1.525
ng (435.8 nm) = 1.521
ns (852.1 nm) = 1.502
ne (546.1 nm) = 1.512
nd (587.6 nm) = 1.510
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] 2.5386
Bubble content
Bubble class -
Transformation temperature
Tg [°C] 481
Temperature coefficient
Tk [nm/°C]
Chemical Resistance
FR class 0
SR class 1.0
AR class 1.0
Thermal expansion
α-30°C/+70°C [10-6/K] 8.81
α20°C/300°C [10-6/K] 10.1
α20°C/200°C [10-6/K]
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