KF6 - GOST Rus

Diagram n (λ)

n calculation

Analogue search

Main parameters
n_d = 1.500571 n_e = 1.502654	V_d = 57.21 V_e = 56.95	n_F - n_C = 0.008748 n_F' - n_C' = 0.008825

Type: Resnik
Spectral range: 0.36501 - 2.6 mkm.
C1 = 0.028 C2 = 1.49824 C3 = 0.0162955 C4 = -0.00991899 C5 = -0.00107249 C6 = -0.000113433 C7 = 0.0000379866 C8 = 0.000407335 C9 = -0.000328411 C10 = -0.000706388 C11 = 0.000424756

Refraction index
n _2.3254	1.474343
n _1.9701	1.479296
n _1.5296	1.484667
n _1.06	1.490086
n _t	1.490690
n _s	1.493183
n _r	1.496396
n _C	1.497913
n _C'	1.498337
n _0.6328	1.498732
n _D	1.500493
n _d	1.500571
n _e	1.502654
n _F	1.506662
n _F'	1.507162
n _g	1.511443
n _h	1.515413
n _i	1.522288
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.8256
P_C,A'	0.3483
P_d,C	0.3038
P_e,C	0.5419
P_g,d	1.2427
P_g,F	0.5465
P_h,g	0.4537
P_i,g	1.2395
P_C',t	0.8740
P_e,C'	0.4935
P_F',e	0.5152
P_i,F'	1.7289

Density: 2.52 g/cm³
Poisson coef.: 0.196
Rigidity: 278.6 Pa*10⁸
Young module: 666.4 Pa*10⁸
Optical stress coef.: 3.06 1/Pa*10¹²
Abrasion: 1

Climatic resistance: Б
Resistance to acids: I

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
-60 ~ 20	63
0 ~ 30	65
20 ~ 120	68
20 ~ 300	74

Temperature coefs. of n_abs
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-60 ~ 20	F	2.7
-60 ~ 20	e	2.4
-60 ~ 20	D	2.1
-60 ~ 20	C	2
20 ~ 120	F	4.4
20 ~ 120	e	4
20 ~ 120	D	3.7
20 ~ 120	C	3.6