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© 2003-2013 ACO department

Политика по обработке Персональных данных

 

N-SK15 - Schott 2000

 Diagram n (λ)    n calculation    Diagram τ (λ)    τ calculation    Analogue search

  Main parameters
nd = 1.622960
ne = 1.625520
Vd = 58.01
Ve = 57.74
nF - nC = 0.010737
nF' - nC' = 0.010831
Coloring:
0.36 - 0.31 mkm.

  Coefficients of dispertion formulas
Type: Sellmeier
Spectral range: 0.3650146 - 2.3254 mkm.
C1 = 1.30417786 C2 = 0.28584116 C3 = 0.974781572 C4 = 0.00695051276 C5 = 0.0232023703 C6 = 99.016884

  Refraction index
n 2.32541.592676
n 1.97011.598220
n 1.52961.604112
n 1.061.610271
n t1.610983
n s1.613957
n r1.617847
n C1.619700
n C'1.620218
n 0.63281.620703
n D1.622864
n d1.622960
n e1.625520
n F1.630437
n F'1.631050
n g1.636292
n h1.641159
n i1.649472
n 0.3341-----
n 0.3126-----
n 0.2967-----
n 0.2804-----
n 0.2483-----
  Relative partial dispertion
PC,t0.8118
PC,A'0.3457
Pd,C0.3036
Pe,C0.5420
Pg,d1.2416
Pg,F0.5453
Ph,g0.4533
Pi,g1.2275
PC',t0.8601
Pe,C'0.4937
PF',e0.5150
Pi,F'1.7157
 transmittance: 10 mm
τ2.50.67
τ2.32540.83
τ1.97010.959
τ1.52960.99
τ1.060.996
τ0.70.997
τ0.660.996
τ0.620.996
τ0.580.996
τ0.546070.996
τ0.50.994
τ0.460.992
τ0.43580.99
τ0.420.988
τ0.40470.986
τ0.40.985
τ0.390.98
τ0.380.969
τ0.370.95
τ0.3650.93
τ0.350.83
τ0.33410.55
 transmittance: 25 mm
τ2.50.37
τ2.32540.62
τ1.97010.9
τ1.52960.975
τ1.060.991
τ0.70.993
τ0.660.991
τ0.620.99
τ0.580.991
τ0.546070.99
τ0.50.986
τ0.460.98
τ0.43580.976
τ0.420.971
τ0.40470.965
τ0.40.962
τ0.390.95
τ0.380.93
τ0.370.88
τ0.3650.84
τ0.350.63
τ0.33410.22

  mechanical
Density: 3.62 g/cm3
Poisson coef.: 0.265
Young module: 840 Pa*108
Knoop hardness: 620
Optical stress coef.: 1.93 1/Pa*1012
Abrasion: 3

  Chemical
Climatic resistance: 3
Staining: 3
Resistance to acids: 52.2
Resistance to alkalis: 2
Phosphate resistance: 3.2

 Temperature coefficient of linear expansion
Temp. range, CValue, 1/C*10^-7
-30 ~ 7067
20 ~ 30076

 Temperature coefs. of nabs
Temp. range,
C
Wave length,
mkm.
Value,
1/C*10-6
-40 ~ -20-0.2
20 ~ 400.6
60 ~ 801.1
-40 ~ -20e0.4
20 ~ 40e1.3
60 ~ 80e1.8
-40 ~ -20g1
20 ~ 40g1.9
60 ~ 80g2.5
 Temperature coefs. of nrel
Temp. range,
C
Wave length,
mkm.
Value,
1/C*10-6
-40 ~ -202
20 ~ 402
60 ~ 802.1
-40 ~ -20e2.6
20 ~ 40e2.7
60 ~ 80e2.9
-40 ~ -20g3.2
20 ~ 40g3.4
60 ~ 80g3.7