LK1 - GOST Rus

Diagram n (λ)

n calculation

Analogue search

Main parameters
n_d = 1.439861 n_e = 1.441387	V_d = 68.84 V_e = 68.58	n_F - n_C = 0.006388 n_F' - n_C' = 0.006435

Type: Resnik
Spectral range: 0.36501 - 2.6 mkm.
C1 = 0.028 C2 = 1.43689 C3 = 0.0115248 C4 = -0.00794951 C5 = -0.000987923 C6 = -0.000282802 C7 = 0.000029784 C8 = -0.0000320029 C9 = 0.000190539 C10 = 0 C11 = 0

Refraction index
n _2.3254	1.419830
n _1.9701	1.423794
n _1.5296	1.427942
n _1.06	1.432078
n _t	1.432535
n _s	1.434404
n _r	1.436784
n _C	1.437904
n _C'	1.438216
n _0.6328	1.438508
n _D	1.439804
n _d	1.439861
n _e	1.441387
n _F	1.444293
n _F'	1.444652
n _g	1.447704
n _h	1.450510
n _i	1.455345
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.8404
P_C,A'	0.3523
P_d,C	0.3063
P_e,C	0.5452
P_g,d	1.2276
P_g,F	0.5339
P_h,g	0.4392
P_i,g	1.1959
P_C',t	0.8893
P_e,C'	0.4963
P_F',e	0.5110
P_i,F'	1.6736

Density: 2.33 g/cm³
Optical stress coef.: 3 1/Pa*10¹²
Abrasion: 0.71

Climatic resistance: А
Resistance to acids: III

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
-60 ~ 20	111
0 ~ 30	112
20 ~ 120	113
20 ~ 300	115