FK1 - GOST Rus

Diagram n (λ)

n calculation

Analogue search

Main parameters
n_d = 1.519076 n_e = 1.520851	V_d = 69.87 V_e = 69.68	n_F - n_C = 0.007428 n_F' - n_C' = 0.007474

Type: Resnik
Spectral range: 0.36501 - 2.4 mkm.
C1 = 0.028 C2 = 1.51411 C3 = 0.012884 C4 = -0.00985151 C5 = -0.00076883 C6 = -0.000158403 C7 = 0.000211499 C8 = -0.000622708 C9 = 0.000401918 C10 = 0.000354409 C11 = -0.000582814

Refraction index
n _2.3254	1.492308
n _1.9701	1.498115
n _1.5296	1.503958
n _1.06	1.509591
n _t	1.510190
n _s	1.512564
n _r	1.515452
n _C	1.516780
n _C'	1.517149
n _0.6328	1.517492
n _D	1.519010
n _d	1.519076
n _e	1.520851
n _F	1.524209
n _F'	1.524624
n _g	1.528157
n _h	1.531440
n _i	1.536925
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.8872
P_C,A'	0.3617
P_d,C	0.3090
P_e,C	0.5480
P_g,d	1.2224
P_g,F	0.5314
P_h,g	0.4419
P_i,g	1.1803
P_C',t	0.9368
P_e,C'	0.4984
P_F',e	0.5078
P_i,F'	1.6559

Density: 2.58 g/cm³
Poisson coef.: 0.23
Young module: 680 Pa*10⁸
Optical stress coef.: 2.3 1/Pa*10¹²
Abrasion: 0.4

Climatic resistance: а
Resistance to acids: I