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© 2003-2013 ACO department

Политика по обработке Персональных данных

 

N-LASF40 - Schott 2000

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

  Main parameters
nd = 1.834043
ne = 1.839346
Vd = 37.29
Ve = 37.04
nF - nC = 0.022363
nF' - nC' = 0.022657
Coloring:
0.44 - 0.35 mkm.

  Coefficients of dispertion formulas
Type: Sellmeier
Spectral range: 0.3650146 - 2.3254 mkm.
C1 = 1.98550331 C2 = 0.274057042 C3 = 1.28945661 C4 = 0.010958331 C5 = 0.0474551603 C6 = 96.9085286

  Refraction index
n 2.32541.786005
n 1.97011.792979
n 1.52961.800743
n 1.061.809993
n t1.811183
n s1.816429
n r1.823798
n C1.827450
n C'1.828486
n 0.63281.829458
n D1.833847
n d1.834043
n e1.839346
n F1.849813
n F'1.851144
n g1.862754
n h1.873931
n i1.894026
n 0.3341-----
n 0.3126-----
n 0.2967-----
n 0.2804-----
n 0.2483-----
  Relative partial dispertion
PC,t0.7274
PC,A'0.3234
Pd,C0.2948
Pe,C0.5319
Pg,d1.2838
Pg,F0.5786
Ph,g0.4997
Pi,g1.3983
PC',t0.7737
Pe,C'0.4856
PF',e0.5275
Pi,F'1.9175
 transmittance: 10 mm
τ2.50.75
τ2.32540.9
τ1.97010.981
τ1.52960.996
τ1.060.999
τ0.70.999
τ0.660.998
τ0.620.998
τ0.580.998
τ0.546070.997
τ0.50.992
τ0.460.983
τ0.43580.975
τ0.420.966
τ0.40470.95
τ0.40.94
τ0.390.92
τ0.380.87
τ0.370.78
τ0.3650.68
τ0.350.21
 transmittance: 25 mm
τ2.50.24
τ2.32540.59
τ1.97010.91
τ1.52960.982
τ1.060.995
τ0.70.994
τ0.660.992
τ0.620.99
τ0.580.988
τ0.546070.983
τ0.50.963
τ0.460.92
τ0.43580.88
τ0.420.84
τ0.40470.77
τ0.40.74
τ0.390.65
τ0.380.51
τ0.370.28
τ0.3650.15

  mechanical
Density: 4.55 g/cm3
Poisson coef.: 0.304
Young module: 1110 Pa*108
Knoop hardness: 690
Optical stress coef.: 2.19 1/Pa*1012
Abrasion: 1

  Chemical
Climatic resistance: 1
Staining: 1
Resistance to acids: 51.2
Resistance to alkalis: 1
Phosphate resistance: 2

 Temperature coefficient of linear expansion
Temp. range, CValue, 1/C*10^-7
-30 ~ 7058
20 ~ 30069

 Temperature coefs. of nabs
Temp. range,
C
Wave length,
mkm.
Value,
1/C*10-6
-40 ~ -204.6
20 ~ 405.7
60 ~ 806.3
-40 ~ -20e6.3
20 ~ 40e7.7
60 ~ 80e8.5
-40 ~ -20g8
20 ~ 40g9.8
60 ~ 80g10.8
 Temperature coefs. of nrel
Temp. range,
C
Wave length,
mkm.
Value,
1/C*10-6
-40 ~ -207.1
20 ~ 407.3
60 ~ 807.6
-40 ~ -20e8.8
20 ~ 40e9.3
60 ~ 80e9.7
-40 ~ -20g10.6
20 ~ 40g11.4
60 ~ 80g12