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Политика по обработке Персональных данных

 

STK20 - GOST Rus

 Diagram n (λ)    n calculation    Analogue search

  Main parameters
nd = 1.764828
ne = 1.768458
Vd = 50.19
Ve = 49.96
nF - nC = 0.015237
nF' - nC' = 0.015379
 

  Coefficients of dispertion formulas
Type: Resnik
Spectral range: 0.40466 - 2.5 mkm.
C1 = 0.028 C2 = 1.75682 C3 = 0.022531 C4 = -0.0134304 C5 = -0.0011808 C6 = -0.000211493 C7 = 0.000265206 C8 = 0.0000839004 C9 = -0.0000843641 C10 = -0.000647514 C11 = 0

  Refraction index
n 2.32541.722972
n 1.97011.730482
n 1.52961.738512
n 1.061.747014
n t1.747998
n s1.752137
n r1.757600
n C1.760215
n C'1.760947
n 0.63281.761633
n D1.764692
n d1.764828
n e1.768458
n F1.775452
n F'1.776327
n g1.783831
n h-----
n i-----
n 0.3341-----
n 0.3126-----
n 0.2967-----
n 0.2804-----
n 0.2483-----
  Relative partial dispertion
PC,t0.8016
PC,A'0.3433
Pd,C0.3027
Pe,C0.5409
Pg,d1.2470
Pg,F0.5498
Ph,g-----
Pi,g-----
PC',t0.8497
Pe,C'0.4928
PF',e0.5164
Pi,F'-----

  mechanical
Density: 4.36 g/cm3
Optical stress coef.: 1.45 1/Pa*1012
Abrasion: 1.32

  Chemical
Climatic resistance: с
Resistance to acids: IV

 Temperature coefficient of linear expansion
Temp. range, CValue, 1/C*10^-7
-60 ~ 2058
0 ~ 3059
20 ~ 12062
20 ~ 30066