K5 - GOST Rus

Diagram n (λ)

n calculation

Analogue search

Main parameters
n_d = 1.511074 n_e = 1.512971	V_d = 64.28 V_e = 64.07	n_F - n_C = 0.007950 n_F' - n_C' = 0.008006

Type: Resnik
Spectral range: 0.36501 - 2.6 mkm.
C1 = 0.028 C2 = 1.50653 C3 = 0.014291 C4 = -0.0109833 C5 = -0.00107496 C6 = -0.000547111 C7 = 0.000138737 C8 = 0 C9 = 0 C10 = 0 C11 = 0

Refraction index
n _2.3254	1.484468
n _1.9701	1.489974
n _1.5296	1.495651
n _1.06	1.501171
n _t	1.501770
n _s	1.504192
n _r	1.507221
n _C	1.508629
n _C'	1.509021
n _0.6328	1.509385
n _D	1.511003
n _d	1.511074
n _e	1.512971
n _F	1.516580
n _F'	1.517027
n _g	1.520832
n _h	1.524344
n _i	1.530320
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.8627
P_C,A'	0.3573
P_d,C	0.3074
P_e,C	0.5461
P_g,d	1.2274
P_g,F	0.5348
P_h,g	0.4416
P_i,g	1.1933
P_C',t	0.9120
P_e,C'	0.4969
P_F',e	0.5100
P_i,F'	1.6719

Density: 2.47 g/cm³
Poisson coef.: 0.209
Young module: 789 Pa*10⁸
Optical stress coef.: 2.7 1/Pa*10¹²
Abrasion: 1

Climatic resistance: А
Resistance to acids: I

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
-60 ~ 20	67
0 ~ 30	70
20 ~ 120	74
20 ~ 300	85