Logotype


search by parameters
analog search

catalogs
GOST Rus
Hikari
Hoya
O'Hara
Schott 2000
Special
Sumita

help

© 2003-2013 ACO department

Политика по обработке Персональных данных

 

N-LAF21 - Schott 2000

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

  Main parameters
nd = 1.788000
ne = 1.791949
Vd = 47.48
Ve = 47.24
nF - nC = 0.016593
nF' - nC' = 0.016762
Coloring:
0.40 - 0.33 mkm.

  Coefficients of dispertion formulas
Type: Sellmeier
Spectral range: 0.3650146 - 1.06 mkm.
C1 = 1.88246178 C2 = 0.239703394 C3 = 1.23484815 C4 = 0.00936029744 C5 = 0.0354026371 C6 = 84.3919934

  Refraction index
n 2.3254-----
n 1.9701-----
n 1.5296-----
n 1.061.768930
n t1.769965
n s1.774350
n r1.780193
n C1.783008
n C'1.783799
n 0.63281.784539
n D1.787853
n d1.788000
n e1.791949
n F1.799602
n F'1.800562
n g1.808828
n h1.816594
n i1.830081
n 0.3341-----
n 0.3126-----
n 0.2967-----
n 0.2804-----
n 0.2483-----
  Relative partial dispertion
PC,t0.7860
PC,A'0.3387
Pd,C0.3008
Pe,C0.5388
Pg,d1.2551
Pg,F0.5559
Ph,g0.4680
Pi,g1.2807
PC',t0.8336
Pe,C'0.4911
PF',e0.5190
Pi,F'1.7789
 transmittance: 10 mm
τ2.50.47
τ2.32540.76
τ1.97010.958
τ1.52960.992
τ1.060.996
τ0.70.997
τ0.660.997
τ0.620.997
τ0.580.996
τ0.546070.996
τ0.50.994
τ0.460.988
τ0.43580.982
τ0.420.976
τ0.40470.959
τ0.40.95
τ0.390.92
τ0.380.88
τ0.370.8
τ0.3650.75
τ0.350.48
 transmittance: 25 mm
τ2.50.15
τ2.32540.51
τ1.97010.9
τ1.52960.98
τ1.060.991
τ0.70.992
τ0.660.992
τ0.620.992
τ0.580.991
τ0.546070.99
τ0.50.985
τ0.460.971
τ0.43580.956
τ0.420.94
τ0.40470.9
τ0.40.88
τ0.390.82
τ0.380.73
τ0.370.58
τ0.3650.48
τ0.350.16

  mechanical
Density: 4.34 g/cm3
Poisson coef.: 0.294
Young module: 1260 Pa*108
Knoop hardness: 780
Optical stress coef.: 1.42 1/Pa*1012
Abrasion: 2

  Chemical
Climatic resistance: 1
Staining: 1
Resistance to acids: 51.3
Resistance to alkalis: 1
Phosphate resistance: 1.3

 Temperature coefficient of linear expansion
Temp. range, CValue, 1/C*10^-7
-30 ~ 7062
20 ~ 30072

 Temperature coefs. of nabs
Temp. range,
C
Wave length,
mkm.
Value,
1/C*10-6
-40 ~ -201.4
20 ~ 402.2
60 ~ 802.7
-40 ~ -20e2.3
20 ~ 40e3.4
60 ~ 80e3.9
-40 ~ -20g3.3
20 ~ 40g4.5
60 ~ 80g5.2
 Temperature coefs. of nrel
Temp. range,
C
Wave length,
mkm.
Value,
1/C*10-6
-40 ~ -203.7
20 ~ 403.8
60 ~ 803.9
-40 ~ -20e4.8
20 ~ 40e4.9
60 ~ 80e5.2
-40 ~ -20g5.8
20 ~ 40g6.1
60 ~ 80g6.4