S-LAH53 - O'Hara

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.806097 n_e = 1.810774	V_d = 40.92 V_e = 40.67	n_F - n_C = 0.019696 n_F' - n_C' = 0.019934	Coloring: 0.34 - 0.41 mkm.

Type: Sellmeier
Spectral range: 0.3650146 - 2.325 mkm.
C1 = 1.91811619 C2 = 0.253724399 C3 = 1.39473885 C4 = 0.0102147684 C5 = 0.0433176011 C6 = 101.938021

Refraction index
n _2.3254	-----
n _1.9701	1.767642
n _1.5296	1.775464
n _1.06	1.784395
n _t	1.785507
n _s	1.790335
n _r	1.796986
n _C	1.800247
n _C'	1.801169
n _0.6328	1.802034
n _D	1.805924
n _d	1.806097
n _e	1.810774
n _F	1.819944
n _F'	1.821104
n _g	1.831174
n _h	1.840781
n _i	1.857824
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7483
P_C,A'	0.3289
P_d,C	0.2970
P_e,C	0.5344
P_g,d	1.2731
P_g,F	0.5701
P_h,g	0.4877
P_i,g	1.3530
P_C',t	0.7951
P_e,C'	0.4876
P_F',e	0.5244
P_i,F'	1.8643

transmittance: 10 mm
τ_0.34	0.06
τ_0.35	0.38
τ_0.36	0.65
τ_0.37	0.8
τ_0.38	0.88
τ_0.39	0.925
τ_0.4	0.947
τ_0.42	0.969
τ_0.44	0.979
τ_0.46	0.985
τ_0.48	0.989
τ_0.5	0.993
τ_0.55	0.996
τ_0.6	0.996
τ_0.65	0.997
τ_0.7	0.998
τ_0.8	0.998
τ_0.9	0.999
τ₁	0.999
τ_1.2	0.999
τ_1.4	0.997
τ_1.6	0.996
τ_1.8	0.989
τ₂	0.969
τ_2.2	0.915
τ_2.4	0.72

Poisson coef.: 0.299
Rigidity: 434 Pa*10⁸
Young module: 1127 Pa*10⁸
Knoop hardness: 640
Abrasion: 78

Climatic resistance: 1
Resistance to acids: 4.2
Phosphate resistance: 2

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
-30 ~ 70	59
100 ~ 300	70

Temperature coefs. of n_rel
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20	t	5.1
-20 ~ 0	t	5.2
0 ~ 20	t	5.3
20 ~ 40	t	5.6
40 ~ 60	t	5.8
60 ~ 80	t	6.2
-40 ~ -20	C'	6.2
-20 ~ 0	C'	6.3
0 ~ 20	C'	6.4
20 ~ 40	C'	6.6
40 ~ 60	C'	6.8
60 ~ 80	C'	7.1
-40 ~ -20		6.2
-20 ~ 0		6.3
0 ~ 20		6.4
20 ~ 40		6.7
40 ~ 60		6.9
60 ~ 80		7.2
-40 ~ -20	D	6.5
-20 ~ 0	D	6.6
0 ~ 20	D	6.7
20 ~ 40	D	6.9
40 ~ 60	D	7.2
60 ~ 80	D	7.5
-40 ~ -20	e	6.8
-20 ~ 0	e	6.9
0 ~ 20	e	7.1
20 ~ 40	e	7.3
40 ~ 60	e	7.6
60 ~ 80	e	7.8
-40 ~ -20	F	7.6
-20 ~ 0	F	7.7
0 ~ 20	F	7.9
20 ~ 40	F	8.1
40 ~ 60	F	8.4
60 ~ 80	F	8.7
-40 ~ -20	g	8.3
-20 ~ 0	g	8.5
0 ~ 20	g	8.7
20 ~ 40	g	9
40 ~ 60	g	9.4
60 ~ 80	g	9.8