TF5 - GOST Rus

Diagram n (λ)

n calculation

Analogue search

Main parameters
n_d = 1.755235 n_e = 1.761711	V_d = 27.53 V_e = 27.32	n_F - n_C = 0.027430 n_F' - n_C' = 0.027880

Type: Resnik
Spectral range: 0.36501 - 2.6 mkm.
C1 = 0.028 C2 = 1.76666 C3 = 0.0553358 C4 = -0.00889707 C5 = 0.00224874 C6 = -0.000240245 C7 = 0.000698347 C8 = 0 C9 = 0 C10 = 0 C11 = 0

Refraction index
n _2.3254	1.707947
n _1.9701	1.712959
n _1.5296	1.719035
n _1.06	1.727650
n _t	1.728884
n _s	1.734574
n _r	1.743017
n _C	1.747322
n _C'	1.748553
n _0.6328	1.749714
n _D	1.754997
n _d	1.755235
n _e	1.761711
n _F	1.774753
n _F'	1.776434
n _g	1.791337
n _h	1.806078
n _i	1.833595
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.6721
P_C,A'	0.3082
P_d,C	0.2884
P_e,C	0.5245
P_g,d	1.3160
P_g,F	0.6045
P_h,g	0.5373
P_i,g	1.5405
P_C',t	0.7170
P_e,C'	0.4796
P_F',e	0.5367
P_i,F'	2.0838

Density: 4.77 g/cm³
Poisson coef.: 0.24
Rigidity: 217.8 Pa*10⁸
Young module: 539 Pa*10⁸
Optical stress coef.: 1.22 1/Pa*10¹²
Abrasion: 0.6

Climatic resistance: А
Resistance to acids: III

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
-60 ~ 20	78
0 ~ 30	80
20 ~ 120	83
20 ~ 300	88

Temperature coefs. of n_abs
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-60 ~ 20	F	8
-60 ~ 20	e	6.2
-60 ~ 20	D	5.4
-60 ~ 20	C	4.8
20 ~ 120	F	10
20 ~ 120	e	8.9
20 ~ 120	D	8
20 ~ 120	C	7.2