LF11 - GOST Rus

Diagram n (λ)

n calculation

Analogue search

Main parameters
n_d = 1.560910 n_e = 1.563761	V_d = 46.78 V_e = 46.49	n_F - n_C = 0.011989 n_F' - n_C' = 0.012124

Type: Resnik
Spectral range: 0.36501 - 2.6 mkm.
C1 = 0.028 C2 = 1.55778 C3 = 0.0223362 C4 = -0.0108332 C5 = -0.000314265 C6 = -0.000459755 C7 = 0.0000545236 C8 = -0.000793165 C9 = 0.000682884 C10 = 0.000992835 C11 = -0.000604566

Refraction index
n _2.3254	1.529887
n _1.9701	1.535349
n _1.5296	1.541061
n _1.06	1.547306
n _t	1.548048
n _s	1.551174
n _r	1.555322
n _C	1.557329
n _C'	1.557894
n _0.6328	1.558424
n _D	1.560804
n _d	1.560910
n _e	1.563761
n _F	1.569319
n _F'	1.570019
n _g	1.576084
n _h	1.581872
n _i	1.592092
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7740
P_C,A'	0.3335
P_d,C	0.2986
P_e,C	0.5364
P_g,d	1.2655
P_g,F	0.5642
P_h,g	0.4827
P_i,g	1.3351
P_C',t	0.8211
P_e,C'	0.4893
P_F',e	0.5219
P_i,F'	1.8410

Density: 3.02 g/cm³
Poisson coef.: 0.211
Young module: 661 Pa*10⁸
Optical stress coef.: 3 1/Pa*10¹²
Abrasion: 0.7

Climatic resistance: А
Resistance to acids: I

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
-60 ~ 20	71
0 ~ 30	72
20 ~ 120	74
20 ~ 300	77