BF32 - GOST Rus

Diagram n (λ)

n calculation

Analogue search

Main parameters
n_d = 1.579410 n_e = 1.582358	V_d = 46.69 V_e = 46.40	n_F - n_C = 0.012409 n_F' - n_C' = 0.012549

Type: Resnik
Spectral range: 0.36501 - 2.6 mkm.
C1 = 0.028 C2 = 1.57767 C3 = 0.0235195 C4 = -0.0113849 C5 = -0.000522049 C6 = -0.00045538 C7 = 0.000172354 C8 = 0.0000354008 C9 = 0.000099714 C10 = 0 C11 = 0

Refraction index
n _2.3254	1.546863
n _1.9701	1.552639
n _1.5296	1.558804
n _1.06	1.565321
n _t	1.566085
n _s	1.569315
n _r	1.573621
n _C	1.575703
n _C'	1.576289
n _0.6328	1.576838
n _D	1.579301
n _d	1.579410
n _e	1.582358
n _F	1.588112
n _F'	1.588838
n _g	1.595131
n _h	1.601128
n _i	1.611832
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7750
P_C,A'	0.3345
P_d,C	0.2987
P_e,C	0.5363
P_g,d	1.2668
P_g,F	0.5655
P_h,g	0.4832
P_i,g	1.3457
P_C',t	0.8222
P_e,C'	0.4890
P_F',e	0.5221
P_i,F'	1.8528

Density: 2.85 g/cm³
Optical stress coef.: 2.8 1/Pa*10¹²
Abrasion: 0.37

Climatic resistance: д
Resistance to acids: VI

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
-60 ~ 20	103
0 ~ 30	107
20 ~ 120	114
20 ~ 300	125