K3 - GOST Rus

Diagram n (λ)

n calculation

Analogue search

Main parameters
n_d = 1.510069 n_e = 1.511990	V_d = 63.36 V_e = 63.13	n_F - n_C = 0.008050 n_F' - n_C' = 0.008110

Type: Resnik
Spectral range: 0.36501 - 2.6 mkm.
C1 = 0.028 C2 = 1.50554 C3 = 0.0145167 C4 = -0.0107823 C5 = -0.000996445 C6 = -0.00027287 C7 = 0.0000541344 C8 = 0 C9 = 0 C10 = 0 C11 = 0

Refraction index
n _2.3254	1.483629
n _1.9701	1.488948
n _1.5296	1.494552
n _1.06	1.500091
n _t	1.500693
n _s	1.503132
n _r	1.506181
n _C	1.507601
n _C'	1.507996
n _0.6328	1.508364
n _D	1.509997
n _d	1.510069
n _e	1.511990
n _F	1.515651
n _F'	1.516106
n _g	1.519979
n _h	1.523556
n _i	1.529622
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.8580
P_C,A'	0.3555
P_d,C	0.3066
P_e,C	0.5451
P_g,d	1.2310
P_g,F	0.5376
P_h,g	0.4443
P_i,g	1.1978
P_C',t	0.9070
P_e,C'	0.4961
P_F',e	0.5112
P_i,F'	1.6790

Density: 2.47 g/cm³
Poisson coef.: 0.204
Young module: 767 Pa*10⁸
Optical stress coef.: 2.7 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	74
0 ~ 30	77
20 ~ 120	83
20 ~ 300	91