Data Sheet
RG850
Density
ρ [g/cm3]
Reflection factor
Ρd
Bubble content
Bubble class
Notes
2.93
Colloidally colored glass
0.91
Reference thickness
d [mm]
3
Spectral values guaranteed
=
λc (τi = 0.50) [nm]
850
λs (τis = 1·10-5) [nm] =
700
λp1 (τip1 = 0.90) [nm] =
950
λp2 (τip2 = 0.97) [nm] =
1200
3
Chemical resistance
FR class
SR class
AR class
5
53.4
1.3
Transformation temperature
Tg [°C]
554
±9
Thermal expansion
-6
α-30/+70°C [10 /K]
-6
α20/300°C [10 /K]
-6
α20/200°C [10 /K]
Refractive index n
λ [nm]
Element
587.6
He
852.1
Cs
Hg
1014
Long pass filter
n
1.56
1.55
1.55
9.5
10.5
Temperature coefficient
Tk [nm/°C]
0.24
All data without tolerances are to be
understood to be reference values.
Guaranteed values are only those
values listed in the section
"Spectral values guaranteed".
Colorimetric evaluation
A ( Planck T = 2856 K )
1
2
3
Illuminant
d [mm]
x
y
Y
λd [nm]
Pe
Planck T = 3200 K
1
2
3
Illuminant
d [mm]
x
y
Y
λd [nm]
Pe
Illuminant
d [mm]
x
y
Y
λd [nm]
Pe
D65 ( T c = 6504 K )
3
1
2
0.99
Internal transmittance
0.98
0.97
0.96
0.95
0.90
0.80
0.70
0.60
0.50
0.40
0.30
0.20
0.10
0.05
0.01
1E-03
1E-04
1E-05
200
300
400
500
600
700
800
900
1000
1100
1200
Wavelength [nm]
STATUS DECEMBER 2004
Page 1/2
RG850
0.99
Internal transmittance
0.98
0.97
0.96
0.95
0.90
0.80
0.70
0.60
0.50
0.40
0.30
0.20
0.10
0.05
0.01
1E-03
1E-04
1E-05
200
700
1200
1700
2200
2700
3200
3700
4200
4700
5200
Wavelength [nm]
Internal transmittance τi at reference thickness
d [mm] = 3
The internal transmittance values, tabulated and graphically represented, are reference values only
τi
τi
τi
τi
τi
λ [nm]
λ [nm]
λ [nm]
λ [nm]
λ [nm]
200
< 1.0E-05
500
< 1.0E-05
800
1.2E-03 1100
9.9E-01 2200
9.7E-01
210
< 1.0E-05
510
< 1.0E-05
810
5.3E-03 1110
9.9E-01 2250
9.6E-01
220
< 1.0E-05
520
< 1.0E-05
820
2.4E-02 1120
9.9E-01 2300
9.6E-01
230
< 1.0E-05
530
< 1.0E-05
830
9.1E-02 1130
9.9E-01 2350
9.6E-01
240
< 1.0E-05
540
< 1.0E-05
840
2.6E-01 1140
9.9E-01 2400
9.5E-01
250
< 1.0E-05
550
< 1.0E-05
850
5.0E-01 1150
9.9E-01 2450
9.4E-01
260
< 1.0E-05
560
< 1.0E-05
860
7.0E-01 1160
9.9E-01 2500
9.4E-01
270
< 1.0E-05
570
< 1.0E-05
870
8.4E-01 1170
9.9E-01 2550
9.3E-01
280
< 1.0E-05
580
< 1.0E-05
880
9.1E-01 1180
9.9E-01 2600
9.3E-01
290
< 1.0E-05
590
< 1.0E-05
890
9.4E-01 1190
9.9E-01 2650
9.1E-01
300
< 1.0E-05
600
< 1.0E-05
900
9.6E-01 1200
9.9E-01 2700
8.6E-01
310
< 1.0E-05
610
< 1.0E-05
910
9.7E-01 1250
1.0E+00 2750
5.1E-01
320
< 1.0E-05
620
< 1.0E-05
920
9.7E-01 1300
1.0E+00 2800
2.2E-01
330
< 1.0E-05
630
< 1.0E-05
930
9.7E-01 1350
1.0E+00 2850
1.7E-01
340
< 1.0E-05
640
< 1.0E-05
940
9.8E-01 1400
1.0E+00 2900
1.4E-01
350
< 1.0E-05
650
< 1.0E-05
950
9.8E-01 1450
1.0E+00 2950
1.2E-01
360
< 1.0E-05
660
< 1.0E-05
960
9.8E-01 1500
1.0E+00 3000
1.0E-01
370
< 1.0E-05
670
< 1.0E-05
970
9.8E-01 1550
1.0E+00 3050
9.3E-02
380
< 1.0E-05
680
< 1.0E-05
980
9.8E-01 1600
1.0E+00 3100
8.3E-02
390
< 1.0E-05
690
< 1.0E-05
990
9.8E-01 1650
1.0E+00 3150
7.7E-02
400
< 1.0E-05
700
< 1.0E-05 1000
9.8E-01 1700
1.0E+00 3200
7.4E-02
410
< 1.0E-05
710
< 1.0E-05 1010
9.8E-01 1750
9.9E-01 3250
7.2E-02
420
< 1.0E-05
720
< 1.0E-05 1020
9.8E-01 1800
9.9E-01 3300
6.8E-02
430
< 1.0E-05
730
< 1.0E-05 1030
9.9E-01 1850
9.9E-01 3350
6.4E-02
440
< 1.0E-05
740
< 1.0E-05 1040
9.9E-01 1900
9.9E-01 3400
5.9E-02
450
< 1.0E-05
750
< 1.0E-05 1050
9.9E-01 1950
9.9E-01 3450
5.4E-02
460
< 1.0E-05
760
1.5E-05 1060
9.9E-01 2000
9.9E-01 3500
4.9E-02
470
< 1.0E-05
770
3.4E-05 1070
9.9E-01 2050
9.9E-01 3550
4.5E-02
480
< 1.0E-05
780
8.5E-05 1080
9.9E-01 2100
9.8E-01 3600
4.5E-02
490
< 1.0E-05
790
2.4E-04 1090
9.9E-01 2150
9.8E-01 3650
4.5E-02
STATUS DECEMBER 2004
λ [nm]
3700
3750
3800
3850
3900
3950
4000
4050
4100
4150
4200
4250
4300
4350
4400
4450
4500
4550
4600
4650
4700
4750
4800
4850
4900
4950
5000
5050
5100
5150
τi
<
<
<
<
<
4.2E-02
3.7E-02
3.5E-02
4.2E-02
5.5E-02
7.2E-02
7.1E-02
6.3E-02
5.7E-02
5.2E-02
4.9E-02
5.2E-02
5.1E-02
4.4E-02
3.3E-02
2.3E-02
1.3E-02
6.8E-03
3.0E-03
1.2E-03
4.7E-04
1.8E-04
7.2E-05
3.0E-05
1.3E-05
1.0E-05
1.0E-05
1.0E-05
1.0E-05
1.0E-05
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