KF5 - GOST Rus

Diagram n (λ)

n calculation

Analogue search

Main parameters
n_d = 1.499678 n_e = 1.501598	V_d = 62.07 V_e = 61.84	n_F - n_C = 0.008049 n_F' - n_C' = 0.008110

Type: Resnik
Spectral range: 0.36501 - 2.6 mkm.
C1 = 0.028 C2 = 1.49501 C3 = 0.0145262 C4 = -0.010905 C5 = -0.000912544 C6 = -0.000378918 C7 = 0.0000810005 C8 = -0.000133937 C9 = 0.0000688415 C10 = 0 C11 = 0

Refraction index
n _2.3254	1.473075
n _1.9701	1.478508
n _1.5296	1.484153
n _1.06	1.489710
n _t	1.490313
n _s	1.492751
n _r	1.495796
n _C	1.497213
n _C'	1.497607
n _0.6328	1.497975
n _D	1.499606
n _d	1.499678
n _e	1.501598
n _F	1.505262
n _F'	1.505718
n _g	1.509605
n _h	1.513214
n _i	1.519432
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.8571
P_C,A'	0.3549
P_d,C	0.3062
P_e,C	0.5447
P_g,d	1.2332
P_g,F	0.5395
P_h,g	0.4483
P_i,g	1.2208
P_C',t	0.9061
P_e,C'	0.4957
P_F',e	0.5118
P_i,F'	1.7038

Density: 2.5 g/cm³
Poisson coef.: 0.196
Young module: 699 Pa*10⁸
Optical stress coef.: 3.05 1/Pa*10¹²
Abrasion: 1.2

Climatic resistance: А
Resistance to acids: I

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
-60 ~ 20	59
0 ~ 30	60
20 ~ 120	62
20 ~ 300	64