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© 2003-2013 ACO department

Политика по обработке Персональных данных

 

N-LAK9 - Schott 2000

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

  Main parameters
nd = 1.691002
ne = 1.694012
Vd = 54.70
Ve = 54.48
nF - nC = 0.012630
nF' - nC' = 0.012738
Coloring:
0.37 - 0.30 mkm.

  Coefficients of dispertion formulas
Type: Sellmeier
Spectral range: 0.3650146 - 2.3254 mkm.
C1 = 1.46231905 C2 = 0.344399589 C3 = 1.15508372 C4 = 0.00724270156 C5 = 0.0243353131 C6 = 85.4686868

  Refraction index
n 2.32541.652942
n 1.97011.660323
n 1.52961.668043
n 1.061.675840
n t1.676716
n s1.680326
n r1.684966
n C1.687158
n C'1.687771
n 0.63281.688342
n D1.690889
n d1.691002
n e1.694012
n F1.699789
n F'1.700509
n g1.706668
n h1.712393
n i1.722189
n 0.3341-----
n 0.3126-----
n 0.2967-----
n 0.2804-----
n 0.2483-----
  Relative partial dispertion
PC,t0.8267
PC,A'0.3484
Pd,C0.3042
Pe,C0.5426
Pg,d1.2403
Pg,F0.5446
Ph,g0.4532
Pi,g1.2288
PC',t0.8752
Pe,C'0.4941
PF',e0.5143
Pi,F'1.7164
 transmittance: 10 mm
τ2.50.51
τ2.32540.76
τ1.97010.963
τ1.52960.992
τ1.060.998
τ0.70.998
τ0.660.998
τ0.620.998
τ0.580.997
τ0.546070.997
τ0.50.996
τ0.460.996
τ0.43580.994
τ0.420.99
τ0.40470.983
τ0.40.98
τ0.390.971
τ0.380.954
τ0.370.92
τ0.3650.91
τ0.350.79
τ0.33410.56
τ0.320.28
 transmittance: 25 mm
τ2.50.19
τ2.32540.5
τ1.97010.91
τ1.52960.98
τ1.060.995
τ0.70.995
τ0.660.994
τ0.620.994
τ0.580.993
τ0.546070.992
τ0.50.991
τ0.460.99
τ0.43580.984
τ0.420.975
τ0.40470.958
τ0.40.95
τ0.390.93
τ0.380.89
τ0.370.82
τ0.3650.78
τ0.350.55
τ0.33410.23
τ0.320.04

  mechanical
Density: 3.51 g/cm3
Poisson coef.: 0.285
Young module: 1100 Pa*108
Knoop hardness: 700
Optical stress coef.: 1.83 1/Pa*1012

  Chemical
Climatic resistance: 3
Staining: 3
Resistance to acids: 52
Resistance to alkalis: 1.2
Phosphate resistance: 4.3

 Temperature coefficient of linear expansion
Temp. range, CValue, 1/C*10^-7
-30 ~ 7063
20 ~ 30075

 Temperature coefs. of nabs
Temp. range,
C
Wave length,
mkm.
Value,
1/C*10-6
-40 ~ -200.8
20 ~ 401.5
60 ~ 802
-40 ~ -20e1.6
20 ~ 40e2.2
60 ~ 80e2.7
-40 ~ -20g2.3
20 ~ 40g2.9
60 ~ 80g3.3
 Temperature coefs. of nrel
Temp. range,
C
Wave length,
mkm.
Value,
1/C*10-6
-40 ~ -203
20 ~ 402.9
60 ~ 803.1
-40 ~ -20e3.9
20 ~ 40e3.7
60 ~ 80e3.8
-40 ~ -20g4.6
20 ~ 40g4.4
60 ~ 80g4.4