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© 2003-2013 ACO department

Политика по обработке Персональных данных

 

N-LAK8 - Schott 2000

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

  Main parameters
nd = 1.713003
ne = 1.716160
Vd = 53.83
Ve = 53.61
nF - nC = 0.013245
nF' - nC' = 0.013358
Coloring:
0.37 - 0.30 mkm.

  Coefficients of dispertion formulas
Type: Sellmeier
Spectral range: 0.3650146 - 2.3254 mkm.
C1 = 1.33183167 C2 = 0.546623206 C3 = 1.19084015 C4 = 0.00620023871 C5 = 0.0216465439 C6 = 82.5827736

  Refraction index
n 2.32541.672943
n 1.97011.680750
n 1.52961.688898
n 1.061.697102
n t1.698021
n s1.701810
n r1.706676
n C1.708973
n C'1.709615
n 0.63281.710215
n D1.712885
n d1.713003
n e1.716160
n F1.722218
n F'1.722974
n g1.729437
n h1.735445
n i1.745729
n 0.3341-----
n 0.3126-----
n 0.2967-----
n 0.2804-----
n 0.2483-----
  Relative partial dispertion
PC,t0.8268
PC,A'0.3483
Pd,C0.3042
Pe,C0.5425
Pg,d1.2407
Pg,F0.5449
Ph,g0.4536
Pi,g1.2300
PC',t0.8753
Pe,C'0.4940
PF',e0.5144
Pi,F'1.7179
 transmittance: 10 mm
τ2.50.4
τ2.32540.71
τ1.97010.95
τ1.52960.992
τ1.060.998
τ0.70.998
τ0.660.998
τ0.620.998
τ0.580.998
τ0.546070.998
τ0.50.998
τ0.460.995
τ0.43580.992
τ0.420.988
τ0.40470.981
τ0.40.977
τ0.390.965
τ0.380.95
τ0.370.91
τ0.3650.88
τ0.350.74
τ0.33410.51
τ0.320.28
τ0.310.16
 transmittance: 25 mm
τ2.50.1
τ2.32540.42
τ1.97010.88
τ1.52960.979
τ1.060.994
τ0.70.996
τ0.660.995
τ0.620.994
τ0.580.994
τ0.546070.995
τ0.50.994
τ0.460.987
τ0.43580.979
τ0.420.97
τ0.40470.952
τ0.40.94
τ0.390.92
τ0.380.87
τ0.370.78
τ0.3650.72
τ0.350.47
τ0.33410.19
τ0.320.04
τ0.310.01

  mechanical
Density: 3.75 g/cm3
Poisson coef.: 0.289
Young module: 1150 Pa*108
Knoop hardness: 740
Optical stress coef.: 1.81 1/Pa*1012
Abrasion: 2

  Chemical
Climatic resistance: 3
Staining: 2
Resistance to acids: 52.3
Resistance to alkalis: 1
Phosphate resistance: 3.3

 Temperature coefficient of linear expansion
Temp. range, CValue, 1/C*10^-7
-30 ~ 7056
20 ~ 30067

 Temperature coefs. of nabs
Temp. range,
C
Wave length,
mkm.
Value,
1/C*10-6
-40 ~ -201.7
20 ~ 402.6
60 ~ 803.1
-40 ~ -20e2.4
20 ~ 40e3.5
60 ~ 80e4.1
-40 ~ -20g3
20 ~ 40g4.3
60 ~ 80g5
 Temperature coefs. of nrel
Temp. range,
C
Wave length,
mkm.
Value,
1/C*10-6
-40 ~ -204
20 ~ 404.1
60 ~ 804.3
-40 ~ -20e4.7
20 ~ 40e5
60 ~ 80e5.2
-40 ~ -20g5.4
20 ~ 40g5.8
60 ~ 80g6.2