OF3 - GOST Rus

Diagram n (λ)

n calculation

Analogue search

Main parameters
n_d = 1.612425 n_e = 1.615728	V_d = 44.09 V_e = 43.87	n_F - n_C = 0.013890 n_F' - n_C' = 0.014033

Type: Resnik
Spectral range: 0.36501 - 2.6 mkm.
C1 = 0.028 C2 = 1.6082 C3 = 0.0260001 C4 = -0.015657 C5 = -0.000808664 C6 = -0.00116148 C7 = 0.00013785 C8 = 0 C9 = 0 C10 = 0 C11 = 0

Refraction index
n _2.3254	1.571804
n _1.9701	1.579843
n _1.5296	1.588052
n _1.06	1.596207
n _t	1.597125
n _s	1.600931
n _r	1.605884
n _C	1.608247
n _C'	1.608910
n _0.6328	1.609530
n _D	1.612302
n _d	1.612425
n _e	1.615728
n _F	1.622137
n _F'	1.622943
n _g	1.629902
n _h	1.636481
n _i	1.648023
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.8007
P_C,A'	0.3405
P_d,C	0.3007
P_e,C	0.5385
P_g,d	1.2581
P_g,F	0.5589
P_h,g	0.4736
P_i,g	1.3045
P_C',t	0.8484
P_e,C'	0.4908
P_F',e	0.5194
P_i,F'	1.8055

Density: 3.15 g/cm³
Poisson coef.: 0.81
Young module: 568 Pa*10⁸
Optical stress coef.: 3.15 1/Pa*10¹²
Abrasion: 0.8

Climatic resistance: д
Resistance to acids: IV

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
-60 ~ 20	48
0 ~ 30	51
20 ~ 120	56
20 ~ 300	63