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BG67HT

BG67HT
Spectral values guaranteed
τi (450nm) ≥0.75
τi (500nm) ≥0.83
τi (550nm) ≥0.65
τi (600nm) ≤0.19
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Download Data sheet BG67HT
Technical Details
Internal Transmittance (Chart)

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

SCHOTT
BG67HT - BG67HT
Thickness
1.0
Reflection factor
0.9134
Internal Transmittance (Table)
λ [nm]
200
210
220
230
240
250
260
270
280
290
300
310
320 < 10⁻³
330 < 10⁻³
340 0.008
350 0.076
360 0.220
370 0.363
380 0.470
390 0.543
400 0.594
410 0.638
420 0.674
430 0.706
440 0.735
450 0.762
460 0.786
470 0.807
480 0.824
490 0.837
λ [nm]
500 0.843
510 0.839
520 0.824
530 0.791
540 0.739
550 0.665
560 0.572
570 0.464
580 0.353
590 0.249
600 0.163
610 0.098
620 0.054
630 0.027
640 0.013
650 0.006
660 0.002
670 < 10⁻³
680 < 10⁻³
690 < 10⁻³
700 < 10⁻³
710 < 10⁻³
720 < 10⁻³
730 < 10⁻³
740 < 10⁻³
750 < 10⁻³
760 < 10⁻³
770 < 10⁻³
780 < 10⁻³
790 < 10⁻³
λ [nm]
800 < 10⁻³
810 < 10⁻³
820 < 10⁻³
830 < 10⁻³
840 < 10⁻³
850 < 10⁻³
860 < 10⁻³
870 < 10⁻³
880 < 10⁻³
890 < 10⁻³
900 < 10⁻³
910 < 10⁻³
920 < 10⁻³
930 < 10⁻³
940 < 10⁻³
950 < 10⁻³
960 < 10⁻³
970 < 10⁻³
980 < 10⁻³
990 < 10⁻³
1,000 < 10⁻³
1,010 < 10⁻³
1,020 < 10⁻³
1,030 < 10⁻³
1,040 < 10⁻³
1,050 < 10⁻³
1,060 < 10⁻³
1,070 < 10⁻³
1,080 < 10⁻³
1,090 < 10⁻³
λ [nm]
1,100 < 10⁻³
1,110 < 10⁻³
1,120 < 10⁻³
1,130 < 10⁻³
1,140 < 10⁻³
1,150 < 10⁻³
1,160 < 10⁻³
1,170 < 10⁻³
1,180 < 10⁻³
1,190 < 10⁻³
1,200 < 10⁻³
1,250 < 10⁻³
1,300 0.003
1,350 0.009
1,400 0.021
1,450 0.042
1,500 0.076
1,550 0.122
1,600 0.170
1,650 0.235
1,700 0.304
1,750 0.374
1,800 0.442
1,850 0.504
1,900 0.563
1,950 0.617
2,000 0.663
2,050 0.704
2,100 0.739
2,150 0.771
λ [nm]
2,200 0.796
2,250 0.818
2,300 0.838
2,350 0.854
2,400 0.869
2,450 0.881
2,500 0.891
2,550 0.897
2,600 0.903
2,650 0.907
2,700 0.908
2,750 0.903
2,800 0.874
2,850 0.821
2,900 0.771
2,950 0.730
3,000 0.696
3,050 0.664
3,100 0.633
3,150 0.603
3,200 0.578
3,250 0.556
3,300 0.536
3,350 0.520
3,400 0.506
3,450 0.499
3,500 0.496
3,550 0.500
3,600 0.507
3,650 0.520
λ [nm]
3,700 0.534
3,750 0.544
3,800 0.532
3,850 0.487
3,900 0.421
3,950 0.351
4,000 0.268
4,050 0.169
4,100 0.094
4,150 0.053
4,200 0.029
4,250 0.020
4,300 0.018
4,350 0.018
4,400 0.016
4,450 0.013
4,500 0.010
4,550 0.008
4,600 0.008
4,650 0.010
4,700 0.015
4,750 0.024
4,800 0.036
4,850 0.050
4,900 0.068
4,950 0.091
5,000 0.117
5,050 0.143
5,100 0.164
5,150 0.175
Optical values
Reflection factor
Pd 0.913
Reference thickness
d [mm] 1
Spectral values guaranteed
τi (450nm) ≥0.75
τi (500nm) ≥0.83
τi (550nm) ≥0.65
τi (600nm) ≤0.19
Refractive Indices n
nF (486.1 nm) = 1.547
nh (404.7 nm) = 1.556
ng (435.8 nm) = 1.552
ns (852.1 nm) = 1.533
ne (546.1 nm) = 1.543
nd (587.6 nm) = 1.541
Colorimetric evaluation
Illuminant A(Planck T = 2347K)
d [mm] 1 2 3
x 0.274 0.211 0.179
y 0.445 0.441 0.434
Y 40 25 17
λd [nm] 499 497 496
Pe 0.40 0.55 0.63
Illuminant Planck T = 3200 K
d [mm] 1 2 3
x 0.259 0.201 0.173
y 0.422 0.415 0.407
Y 42 26 18
λd [nm] 497 496 495
Pe 0.41 0.55 0.63
Illuminant D65 (TC = 6504 K)
d [mm] 1 2 3
x 0.203 0.170 0.154
y 0.312 0.300 0.294
Y 49 33 24
λd [nm] 490 489 489
Pe 0.41 0.54 0.61
Physical values
Density
p [g/cm3] 2.8547
Bubble content
Bubble class
Transformation temperature
Tg [°C] 390
Temperature coefficient
Tk [nm/°C]
Chemical Resistance
FR class 1.0
SR class 52.3
AR class 3.3
Thermal expansion
α-30°C/+70°C [10-6/K] 11.76
α20°C/300°C [10-6/K] 13.65
α20°C/200°C [10-6/K]
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