TK9 - GOST Rus

Diagram n (λ)

n calculation

Analogue search

Main parameters
n_d = 1.617199 n_e = 1.619920	V_d = 54.04 V_e = 53.75	n_F - n_C = 0.011419 n_F' - n_C' = 0.011532

Type: Resnik
Spectral range: 0.36501 - 2.6 mkm.
C1 = 0.028 C2 = 1.61646 C3 = 0.021362 C4 = -0.00947654 C5 = -0.00122543 C6 = -0.000371378 C7 = 0.000122518 C8 = 0 C9 = 0 C10 = 0 C11 = 0

Refraction index
n _2.3254	1.588204
n _1.9701	1.593073
n _1.5296	1.598337
n _1.06	1.604120
n _t	1.604818
n _s	1.607800
n _r	1.611816
n _C	1.613756
n _C'	1.614302
n _0.6328	1.614812
n _D	1.617098
n _d	1.617199
n _e	1.619920
n _F	1.625176
n _F'	1.625834
n _g	1.631477
n _h	1.636748
n _i	1.645822
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7827
P_C,A'	0.3390
P_d,C	0.3014
P_e,C	0.5397
P_g,d	1.2503
P_g,F	0.5517
P_h,g	0.4615
P_i,g	1.2561
P_C',t	0.8304
P_e,C'	0.4919
P_F',e	0.5178
P_i,F'	1.7503

Density: 3.62 g/cm³
Poisson coef.: 0.266
Young module: 806 Pa*10⁸
Optical stress coef.: 2.3 1/Pa*10¹²
Abrasion: 0.7

Climatic resistance: А
Resistance to acids: III

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
-60 ~ 20	71
0 ~ 30	73
20 ~ 120	77
20 ~ 300	84