TBF10 - GOST Rus

Diagram n (λ)

n calculation

Analogue search

Main parameters
n_d = 1.814810 n_e = 1.820575	V_d = 33.42 V_e = 33.16	n_F - n_C = 0.024379 n_F' - n_C' = 0.024739

Type: Resnik
Spectral range: 0.36501 - 2.6 mkm.
C1 = 0.028 C2 = 1.82119 C3 = 0.0484281 C4 = -0.0126801 C5 = 0.00102972 C6 = -0.000279442 C7 = 0.000683679 C8 = 0.000407888 C9 = -0.0001533 C10 = -0.00057059 C11 = 0.000432073

Refraction index
n _2.3254	1.765343
n _1.9701	1.772066
n _1.5296	1.779792
n _1.06	1.789217
n _t	1.790450
n _s	1.795945
n _r	1.803780
n _C	1.807696
n _C'	1.808809
n _0.6328	1.809856
n _D	1.814598
n _d	1.814810
n _e	1.820575
n _F	1.832075
n _F'	1.833549
n _g	1.846533
n _h	1.859263
n _i	1.883028
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7074
P_C,A'	0.3172
P_d,C	0.2918
P_e,C	0.5282
P_g,d	1.3012
P_g,F	0.5930
P_h,g	0.5221
P_i,g	1.4969
P_C',t	0.7530
P_e,C'	0.4826
P_F',e	0.5321
P_i,F'	2.0295

Density: 4.22 g/cm³
Optical stress coef.: 1.85 1/Pa*10¹²
Abrasion: 0.77

Climatic resistance: А
Resistance to acids: III

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
-60 ~ 20	68
0 ~ 30	70
20 ~ 120	73
20 ~ 300	77