F2 - GOST Rus

Diagram n (λ)

n calculation

Analogue search

Main parameters
n_d = 1.616551 n_e = 1.620541	V_d = 36.61 V_e = 36.35	n_F - n_C = 0.016840 n_F' - n_C' = 0.017070

Type: Resnik
Spectral range: 0.36501 - 2.6 mkm.
C1 = 0.028 C2 = 1.62026 C3 = 0.0330128 C4 = -0.00943184 C5 = 0.000105437 C6 = -0.00048518 C7 = 0.00045581 C8 = 0.000354384 C9 = -0.000182147 C10 = 0 C11 = 0

Refraction index
n _2.3254	1.581314
n _1.9701	1.586296
n _1.5296	1.591909
n _1.06	1.598610
n _t	1.599483
n _s	1.603361
n _r	1.608862
n _C	1.611600
n _C'	1.612376
n _0.6328	1.613106
n _D	1.616403
n _d	1.616551
n _e	1.620541
n _F	1.628440
n _F'	1.629447
n _g	1.638265
n _h	1.646807
n _i	1.662241
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7194
P_C,A'	0.3215
P_d,C	0.2939
P_e,C	0.5309
P_g,d	1.2894
P_g,F	0.5833
P_h,g	0.5072
P_i,g	1.4237
P_C',t	0.7656
P_e,C'	0.4847
P_F',e	0.5288
P_i,F'	1.9473

Density: 3.6 g/cm³
Poisson coef.: 0.216
Young module: 570 Pa*10⁸
Optical stress coef.: 2.95 1/Pa*10¹²
Abrasion: 0.6

Climatic resistance: А
Resistance to acids: I

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
-60 ~ 20	70
0 ~ 30	72
20 ~ 120	75
20 ~ 300	80