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© 2003-2013 ACO department

Политика по обработке Персональных данных

 

N-BAK2 - Schott 2000

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

  Main parameters
nd = 1.539960
ne = 1.542116
Vd = 59.70
Ve = 59.43
nF - nC = 0.009043
nF' - nC' = 0.009120
Coloring:
0.31 - 0.26 mkm.

  Coefficients of dispertion formulas
Type: Sellmeier
Spectral range: 0.3650146 - 2.3254 mkm.
C1 = 1.01662154 C2 = 0.319903051 C3 = 0.937232995 C4 = 0.00592383763 C5 = 0.0203828415 C6 = 113.118417

  Refraction index
n 2.32541.513868
n 1.97011.518705
n 1.52961.523851
n 1.061.529189
n t1.529800
n s1.532341
n r1.535642
n C1.537209
n C'1.537647
n 0.63281.538056
n D1.539879
n d1.539960
n e1.542116
n F1.546252
n F'1.546767
n g1.551169
n h1.555251
n i1.562210
n 0.3341-----
n 0.3126-----
n 0.2967-----
n 0.2804-----
n 0.2483-----
  Relative partial dispertion
PC,t0.8192
PC,A'0.3473
Pd,C0.3041
Pe,C0.5426
Pg,d1.2395
Pg,F0.5437
Ph,g0.4513
Pi,g1.2209
PC',t0.8676
Pe,C'0.4942
PF',e0.5143
Pi,F'1.7076
 transmittance: 10 mm
τ2.50.74
τ2.32540.82
τ1.97010.93
τ1.52960.994
τ1.060.999
τ0.70.998
τ0.660.998
τ0.620.997
τ0.580.998
τ0.546070.998
τ0.50.997
τ0.460.996
τ0.43580.996
τ0.420.997
τ0.40470.997
τ0.40.997
τ0.390.996
τ0.380.996
τ0.370.996
τ0.3650.994
τ0.350.988
τ0.33410.968
τ0.320.92
τ0.310.84
τ0.30.7
τ0.290.52
τ0.280.3
 transmittance: 25 mm
τ2.50.47
τ2.32540.6
τ1.97010.84
τ1.52960.984
τ1.060.997
τ0.70.995
τ0.660.994
τ0.620.993
τ0.580.994
τ0.546070.994
τ0.50.993
τ0.460.991
τ0.43580.991
τ0.420.992
τ0.40470.992
τ0.40.992
τ0.390.991
τ0.380.989
τ0.370.989
τ0.3650.986
τ0.350.971
τ0.33410.92
τ0.320.8
τ0.310.65
τ0.30.41
τ0.290.19
τ0.280.05

  mechanical
Density: 2.86 g/cm3
Poisson coef.: 0.233
Young module: 710 Pa*108
Knoop hardness: 530
Optical stress coef.: 2.6 1/Pa*1012
Abrasion: 2

  Chemical
Climatic resistance: 2
Staining: 0
Resistance to acids: 1
Resistance to alkalis: 1
Phosphate resistance: 2.3

 Temperature coefficient of linear expansion
Temp. range, CValue, 1/C*10^-7
-30 ~ 7080
20 ~ 30090

 Temperature coefs. of nabs
Temp. range,
C
Wave length,
mkm.
Value,
1/C*10-6
-40 ~ -20-0.9
20 ~ 40-0.3
60 ~ 800.1
-40 ~ -20e-0.3
20 ~ 40e0.3
60 ~ 80e0.8
-40 ~ -20g0.2
20 ~ 40g0.9
60 ~ 80g1.4
 Temperature coefs. of nrel
Temp. range,
C
Wave length,
mkm.
Value,
1/C*10-6
-40 ~ -201.1
20 ~ 401
60 ~ 801.1
-40 ~ -20e1.8
20 ~ 40e1.7
60 ~ 80e1.8
-40 ~ -20g2.3
20 ~ 40g2.3
60 ~ 80g2.4