TK1 - GOST Rus

Diagram n (λ)

n calculation

Analogue search

Main parameters
n_d = 1.563884 n_e = 1.566096	V_d = 60.76 V_e = 60.51	n_F - n_C = 0.009279 n_F' - n_C' = 0.009353

Type: Resnik
Spectral range: 0.36501 - 2.6 mkm.
C1 = 0.028 C2 = 1.56158 C3 = 0.0171208 C4 = -0.0102506 C5 = -0.00129694 C6 = -0.000397112 C7 = 0.000224298 C8 = 0.000348921 C9 = -0.000341967 C10 = -0.000452646 C11 = 0.000272179

Refraction index
n _2.3254	1.536319
n _1.9701	1.541517
n _1.5296	1.547065
n _1.06	1.552700
n _t	1.553338
n _s	1.555991
n _r	1.559427
n _C	1.561049
n _C'	1.561501
n _0.6328	1.561924
n _D	1.563801
n _d	1.563884
n _e	1.566096
n _F	1.570329
n _F'	1.570855
n _g	1.575351
n _h	1.579508
n _i	1.586609
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.8309
P_C,A'	0.3512
P_d,C	0.3054
P_e,C	0.5439
P_g,d	1.2357
P_g,F	0.5411
P_h,g	0.4479
P_i,g	1.2131
P_C',t	0.8797
P_e,C'	0.4951
P_F',e	0.5128
P_i,F'	1.6975

Density: 3.08 g/cm³
Poisson coef.: 0.243
Young module: 791 Pa*10⁸
Optical stress coef.: 2.45 1/Pa*10¹²
Abrasion: 0.9

Climatic resistance: А
Resistance to acids: II

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
-60 ~ 20	59
0 ~ 30	60
20 ~ 120	61
20 ~ 300	65