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© 2003-2013 ACO department

Политика по обработке Персональных данных

 

N-SF64 - Schott 2000

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

  Main parameters
nd = 1.705908
ne = 1.711420
Vd = 30.23
Ve = 29.99
nF - nC = 0.023349
nF' - nC' = 0.023720
Coloring:
0.42 - 0.37 mkm.

  Coefficients of dispertion formulas
Type: Sellmeier
Spectral range: 0.3650146 - 2.3254 mkm.
C1 = 1.59163762 C2 = 0.219908428 C3 = 1.46929315 C4 = 0.0118623434 C5 = 0.0594585499 C6 = 133.310762

  Refraction index
n 2.32541.659931
n 1.97011.666069
n 1.52961.673064
n 1.061.681763
n t1.682914
n s1.688060
n r1.695436
n C1.699142
n C'1.700198
n 0.63281.701192
n D1.705705
n d1.705908
n e1.711420
n F1.722492
n F'1.723918
n g1.736567
n h1.749121
n i1.772812
n 0.3341-----
n 0.3126-----
n 0.2967-----
n 0.2804-----
n 0.2483-----
  Relative partial dispertion
PC,t0.6949
PC,A'0.3129
Pd,C0.2897
Pe,C0.5258
Pg,d1.3130
Pg,F0.6028
Ph,g0.5376
Pi,g1.5522
PC',t0.7401
Pe,C'0.4806
PF',e0.5352
Pi,F'2.0939
 transmittance: 10 mm
τ2.50.77
τ2.32540.84
τ1.97010.95
τ1.52960.992
τ1.060.998
τ0.70.994
τ0.660.992
τ0.620.992
τ0.580.994
τ0.546070.993
τ0.50.984
τ0.460.971
τ0.43580.957
τ0.420.93
τ0.40470.88
τ0.40.85
τ0.390.75
τ0.380.55
τ0.370.21
 transmittance: 25 mm
τ2.50.52
τ2.32540.64
τ1.97010.88
τ1.52960.979
τ1.060.996
τ0.70.985
τ0.660.98
τ0.620.981
τ0.580.984
τ0.546070.982
τ0.50.961
τ0.460.93
τ0.43580.9
τ0.420.84
τ0.40470.73
τ0.40.67
τ0.390.48
τ0.380.22
τ0.370.02

  mechanical
Density: 2.99 g/cm3
Poisson coef.: 0.245
Young module: 880 Pa*108
Knoop hardness: 620
Optical stress coef.: 2.95 1/Pa*1012
Abrasion: 4

  Chemical
Climatic resistance: 1
Staining: 0
Resistance to acids: 1
Resistance to alkalis: 1.2
Phosphate resistance: 1

 Temperature coefficient of linear expansion
Temp. range, CValue, 1/C*10^-7
-30 ~ 7085
20 ~ 30098

 Temperature coefs. of nabs
Temp. range,
C
Wave length,
mkm.
Value,
1/C*10-6
-40 ~ -20-1.3
20 ~ 40-0.6
60 ~ 80-0.1
-40 ~ -20e0.1
20 ~ 40e1.2
60 ~ 80e1.9
-40 ~ -20g2
20 ~ 40g3.5
60 ~ 80g4.4
 Temperature coefs. of nrel
Temp. range,
C
Wave length,
mkm.
Value,
1/C*10-6
-40 ~ -200.9
20 ~ 400.9
60 ~ 801
-40 ~ -20e2.4
20 ~ 40e2.7
60 ~ 80e3
-40 ~ -20g4.4
20 ~ 40g5.1
60 ~ 80g5.6