BF23 - GOST Rus

Diagram n (λ)

n calculation

Analogue search

Main parameters
n_d = 1.549389 n_e = 1.551882	V_d = 52.43 V_e = 52.14	n_F - n_C = 0.010476 n_F' - n_C' = 0.010583

Type: Resnik
Spectral range: 0.36501 - 2.6 mkm.
C1 = 0.028 C2 = 1.54699 C3 = 0.0195183 C4 = -0.00986303 C5 = -0.000783819 C6 = -0.0000758946 C7 = -0.0000550294 C8 = -0.000380235 C9 = 0.000178796 C10 = 0 C11 = 0

Refraction index
n _2.3254	1.521140
n _1.9701	1.526105
n _1.5296	1.531451
n _1.06	1.537240
n _t	1.537916
n _s	1.540745
n _r	1.544458
n _C	1.546237
n _C'	1.546737
n _0.6328	1.547204
n _D	1.549296
n _d	1.549389
n _e	1.551882
n _F	1.556714
n _F'	1.557320
n _g	1.562536
n _h	1.567436
n _i	1.576014
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7942
P_C,A'	0.3395
P_d,C	0.3007
P_e,C	0.5387
P_g,d	1.2549
P_g,F	0.5557
P_h,g	0.4677
P_i,g	1.2865
P_C',t	0.8419
P_e,C'	0.4910
P_F',e	0.5190
P_i,F'	1.7843

Density: 2.92 g/cm³
Poisson coef.: 0.226
Young module: 684 Pa*10⁸
Optical stress coef.: 2.95 1/Pa*10¹²
Abrasion: 0.7

Climatic resistance: А
Resistance to acids: I