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© 2003-2013 ACO department

Политика по обработке Персональных данных

 

N-SSK8 - Schott 2000

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

  Main parameters
nd = 1.617728
ne = 1.620676
Vd = 49.82
Ve = 49.53
nF - nC = 0.012396
nF' - nC' = 0.012529
Coloring:
0.39 - 0.35 mkm.

  Coefficients of dispertion formulas
Type: Sellmeier
Spectral range: 0.3650146 - 2.3254 mkm.
C1 = 1.44857867 C2 = 0.117965926 C3 = 1.06937528 C4 = 0.00869310149 C5 = 0.0421566593 C6 = 111.300666

  Refraction index
n 2.32541.585936
n 1.97011.591368
n 1.52961.597231
n 1.061.603599
n t1.604359
n s1.607590
n r1.611919
n C1.614010
n C'1.614598
n 0.63281.615149
n D1.617618
n d1.617728
n e1.620676
n F1.626407
n F'1.627128
n g1.633351
n h1.639232
n i1.649537
n 0.3341-----
n 0.3126-----
n 0.2967-----
n 0.2804-----
n 0.2483-----
  Relative partial dispertion
PC,t0.7784
PC,A'0.3365
Pd,C0.2998
Pe,C0.5377
Pg,d1.2602
Pg,F0.5601
Ph,g0.4743
Pi,g1.3056
PC',t0.8259
Pe,C'0.4902
PF',e0.5204
Pi,F'1.8076
 transmittance: 10 mm
τ2.50.73
τ2.32540.85
τ1.97010.959
τ1.52960.992
τ1.060.997
τ0.70.998
τ0.660.996
τ0.620.996
τ0.580.997
τ0.546070.997
τ0.50.994
τ0.460.987
τ0.43580.982
τ0.420.975
τ0.40470.959
τ0.40.95
τ0.390.92
τ0.380.85
τ0.370.73
τ0.3650.63
τ0.350.16
 transmittance: 25 mm
τ2.50.46
τ2.32540.66
τ1.97010.9
τ1.52960.98
τ1.060.993
τ0.70.994
τ0.660.991
τ0.620.99
τ0.580.992
τ0.546070.992
τ0.50.984
τ0.460.969
τ0.43580.955
τ0.420.94
τ0.40470.9
τ0.40.88
τ0.390.81
τ0.380.66
τ0.370.45
τ0.3650.31
τ0.350.01

  mechanical
Density: 3.27 g/cm3
Poisson coef.: 0.251
Young module: 840 Pa*108
Knoop hardness: 570
Optical stress coef.: 2.36 1/Pa*1012
Abrasion: 3

  Chemical
Climatic resistance: 1
Staining: 0
Resistance to acids: 1
Resistance to alkalis: 1.3
Phosphate resistance: 1

 Temperature coefficient of linear expansion
Temp. range, CValue, 1/C*10^-7
-30 ~ 7072
20 ~ 30082

 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 ~ -20e0.5
20 ~ 40e1.5
60 ~ 80e2.1
-40 ~ -20g1.3
20 ~ 40g2.4
60 ~ 80g3.1
 Temperature coefs. of nrel
Temp. range,
C
Wave length,
mkm.
Value,
1/C*10-6
-40 ~ -201.9
20 ~ 402
60 ~ 802.2
-40 ~ -20e2.7
20 ~ 40e2.9
60 ~ 80e3.2
-40 ~ -20g3.5
20 ~ 40g3.9
60 ~ 80g4.2