BG7

A UV blue bandpass filter that selectively transmits certain wavelength ranges (pass band).

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BG7
Spectral values guaranteed
τi (365nm) ≥0.25
τi (488nm) ≥0.78
τi (633nm) ≤0.08
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    Article Details
     
    Technical Details
    Internal Transmittance (Chart)

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

    Lambda [nm]
    200
    300
    400
    500
    600
    700
    800
    900
    1000
    1100
    1200
    1E-5
    1E-4
    1E-3
    0.01
    0.05
    0.1
    0.2
    0.3
    0.4
    0.5
    0.6
    0.7
    0.8
    0.9
    0.95
    0.96
    0.97
    0.98
    0.99
    SCHOTT
    BG7 - BG7
    Thickness
    1.0
    Reflection factor
    0.9185
    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 0.013
    340 0.066
    350 0.160
    360 0.260
    370 0.349
    380 0.435
    390 0.504
    400 0.561
    410 0.614
    420 0.657
    430 0.695
    440 0.728
    450 0.754
    460 0.776
    470 0.788
    480 0.794
    490 0.788
    λ [nm]
    500 0.767
    510 0.730
    520 0.679
    530 0.611
    540 0.535
    550 0.450
    560 0.369
    570 0.295
    580 0.229
    590 0.174
    600 0.131
    610 0.096
    620 0.070
    630 0.051
    640 0.037
    650 0.027
    660 0.021
    670 0.015
    680 0.011
    690 0.009
    700 0.007
    710 0.006
    720 0.005
    730 0.004
    740 0.004
    750 0.003
    760 0.003
    770 0.003
    780 0.003
    790 0.003
    λ [nm]
    800 0.003
    810 0.003
    820 0.003
    830 0.003
    840 0.003
    850 0.003
    860 0.003
    870 0.004
    880 0.004
    890 0.004
    900 0.005
    910 0.005
    920 0.006
    930 0.007
    940 0.008
    950 0.009
    960 0.010
    970 0.011
    980 0.012
    990 0.014
    1,000 0.016
    1,010 0.018
    1,020 0.020
    1,030 0.022
    1,040 0.024
    1,050 0.026
    1,060 0.029
    1,070 0.033
    1,080 0.036
    1,090 0.041
    λ [nm]
    1,100 0.044
    1,110 0.048
    1,120 0.052
    1,130 0.056
    1,140 0.062
    1,150 0.067
    1,160 0.073
    1,170 0.078
    1,180 0.084
    1,190 0.090
    1,200 0.096
    1,250 0.132
    1,300 0.171
    1,350 0.215
    1,400 0.263
    1,450 0.314
    1,500 0.363
    1,550 0.412
    1,600 0.462
    1,650 0.508
    1,700 0.550
    1,750 0.589
    1,800 0.624
    1,850 0.656
    1,900 0.685
    1,950 0.712
    2,000 0.737
    2,050 0.757
    2,100 0.774
    2,150 0.789
    λ [nm]
    2,200 0.802
    2,250 0.816
    2,300 0.827
    2,350 0.839
    2,400 0.849
    2,450 0.860
    2,500 0.870
    2,550 0.881
    2,600 0.887
    2,650 0.887
    2,700 0.875
    2,750 0.767
    2,800 0.691
    2,850 0.675
    2,900 0.672
    2,950 0.670
    3,000 0.654
    3,050 0.628
    3,100 0.602
    3,150 0.574
    3,200 0.546
    3,250 0.517
    3,300 0.493
    3,350 0.472
    3,400 0.451
    3,450 0.438
    3,500 0.433
    3,550 0.432
    3,600 0.434
    3,650 0.438
    λ [nm]
    3,700 0.444
    3,750 0.453
    3,800 0.465
    3,850 0.478
    3,900 0.490
    3,950 0.501
    4,000 0.503
    4,050 0.495
    4,100 0.478
    4,150 0.456
    4,200 0.430
    4,250 0.400
    4,300 0.366
    4,350 0.326
    4,400 0.281
    4,450 0.230
    4,500 0.177
    4,550 0.128
    4,600 0.091
    4,650 0.064
    4,700 0.046
    4,750 0.036
    4,800 0.031
    4,850 0.029
    4,900 0.027
    4,950 0.020
    5,000 0.013
    5,050 0.006
    5,100 0.003
    5,150 0.001
    Optical values
    Reflection factor
    Pd 0.919
    Reference thickness
    d [mm] 1
    Spectral values guaranteed
    τi (365nm) ≥0.25
    τi (488nm) ≥0.78
    τi (633nm) ≤0.08
    Refractive Indices n
    nF (486.1 nm) = 1.526
    nh (404.7 nm) = 1.536
    ng (435.8 nm) = 1.531
    ns (852.1 nm) = 1.511
    ne (546.1 nm) = 1.521
    nd (587.6 nm) = 1.519
    Colorimetric evaluation
    Illuminant A(Planck T = 2347K)
    d [mm] 1 2 3
    x 0.262 0.179 0.145
    y 0.406 0.360 0.317
    Y 30 14 8
    λd [nm] 495 492 490
    Pe 0.44 0.65 0.76
    Illuminant Planck T = 3200 K
    d [mm] 1 2 3
    x 0.246 0.172 0.143
    y 0.382 0.333 0.292
    Y 31 16 9
    λd [nm] 493 490 488
    Pe 0.45 0.66 0.76
    Illuminant D65 (TC = 6504 K)
    d [mm] 1 2 3
    x 0.191 0.152 0.138
    y 0.272 0.229 0.200
    Y 38 21 13
    λd [nm] 486 484 482
    Pe 0.49 0.68 0.76
    Physical values
    Density
    p [g/cm3] 2.6028
    Bubble content
    Bubble class
    Transformation temperature
    Tg [°C] 447
    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] 8.7
    α20°C/300°C [10-6/K] 10
    α20°C/200°C [10-6/K]