LK3 - GOST Rus

Diagram n (λ)

n calculation

Analogue search

Main parameters
n_d = 1.487460 n_e = 1.489121	V_d = 70.06 V_e = 69.86	n_F - n_C = 0.006957 n_F' - n_C' = 0.007001

Type: Resnik
Spectral range: 0.36501 - 2.6 mkm.
C1 = 0.028 C2 = 1.48202 C3 = 0.0123348 C4 = -0.0109404 C5 = -0.000918016 C6 = -0.000303454 C7 = 0.0000686162 C8 = 0 C9 = 0 C10 = 0 C11 = 0

Refraction index
n _2.3254	1.462232
n _1.9701	1.467598
n _1.5296	1.473188
n _1.06	1.478539
n _t	1.479102
n _s	1.481340
n _r	1.484062
n _C	1.485310
n _C'	1.485655
n _0.6328	1.485977
n _D	1.487398
n _d	1.487460
n _e	1.489121
n _F	1.492267
n _F'	1.492657
n _g	1.495962
n _h	1.499003
n _i	1.504141
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.8922
P_C,A'	0.3632
P_d,C	0.3090
P_e,C	0.5477
P_g,d	1.2220
P_g,F	0.5310
P_h,g	0.4369
P_i,g	1.1755
P_C',t	0.9419
P_e,C'	0.4981
P_F',e	0.5081
P_i,F'	1.6506

Density: 2.46 g/cm³
Poisson coef.: 0.228
Rigidity: 256.9 Pa*10⁸
Young module: 631.1 Pa*10⁸
Optical stress coef.: 2.86 1/Pa*10¹²
Abrasion: 0.9

Climatic resistance: А
Resistance to acids: III

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
-60 ~ 20	86
0 ~ 30	88
20 ~ 120	92
20 ~ 300	98

Temperature coefs. of n_abs
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-60 ~ 20	F	-2.7
-60 ~ 20	e	-2.8
-60 ~ 20	D	-2.9
-60 ~ 20	C	-3
20 ~ 120	F	-1.3
20 ~ 120	e	-1.5
20 ~ 120	D	-1.6
20 ~ 120	C	-1.6