TF1 - GOST Rus

Diagram n (λ)

n calculation

Analogue search

Main parameters
n_d = 1.647668 n_e = 1.652193	V_d = 33.88 V_e = 33.63	n_F - n_C = 0.019116 n_F' - n_C' = 0.019392

Type: Resnik
Spectral range: 0.36501 - 2.6 mkm.
C1 = 0.028 C2 = 1.6529 C3 = 0.0377377 C4 = -0.00923238 C5 = 0.000452637 C6 = -0.000471164 C7 = 0.000366763 C8 = 0 C9 = 0 C10 = 0 C11 = 0

Refraction index
n _2.3254	1.609922
n _1.9701	1.614928
n _1.5296	1.620581
n _1.06	1.627671
n _t	1.628620
n _s	1.632882
n _r	1.639008
n _C	1.642080
n _C'	1.642955
n _0.6328	1.643777
n _D	1.647501
n _d	1.647668
n _e	1.652193
n _F	1.661197
n _F'	1.662347
n _g	1.672450
n _h	1.682279
n _i	1.700215
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7041
P_C,A'	0.3171
P_d,C	0.2922
P_e,C	0.5290
P_g,d	1.2963
P_g,F	0.5886
P_h,g	0.5141
P_i,g	1.4524
P_C',t	0.7498
P_e,C'	0.4832
P_F',e	0.5311
P_i,F'	1.9809

Density: 3.86 g/cm³
Poisson coef.: 0.227
Rigidity: 218.4 Pa*10⁸
Young module: 536.1 Pa*10⁸
Optical stress coef.: 2.55 1/Pa*10¹²
Abrasion: 0.5

Climatic resistance: А
Resistance to acids: II

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
-60 ~ 20	82
0 ~ 30	84
20 ~ 120	85
20 ~ 300	88

Temperature coefs. of n_abs
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-60 ~ 20	F	2.8
-60 ~ 20	e	1.8
-60 ~ 20	D	1.4
-60 ~ 20	C	1
20 ~ 120	F	5.3
20 ~ 120	e	4.2
20 ~ 120	D	3.8
20 ~ 120	C	3.3