S-LAH52 - O'Hara

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.799515 n_e = 1.804014	V_d = 42.22 V_e = 41.96	n_F - n_C = 0.018934 n_F' - n_C' = 0.019156	Coloring: 0.34 - 0.40 mkm.

Type: Sellmeier
Spectral range: 0.3650146 - 2.325 mkm.
C1 = 1.85390925 C2 = 0.297925555 C3 = 1.39382086 C4 = 0.00955320687 C5 = 0.039381685 C6 = 102.706848

Refraction index
n _2.3254	-----
n _1.9701	1.762022
n _1.5296	1.769758
n _1.06	1.778521
n _t	1.779605
n _s	1.784296
n _r	1.790731
n _C	1.793879
n _C'	1.794768
n _0.6328	1.795601
n _D	1.799349
n _d	1.799515
n _e	1.804014
n _F	1.812813
n _F'	1.813925
n _g	1.823554
n _h	1.832706
n _i	1.848845
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7538
P_C,A'	0.3304
P_d,C	0.2976
P_e,C	0.5352
P_g,d	1.2695
P_g,F	0.5672
P_h,g	0.4833
P_i,g	1.3357
P_C',t	0.8008
P_e,C'	0.4883
P_F',e	0.5234
P_i,F'	1.8442

transmittance: 10 mm
τ_0.33	0.02
τ_0.34	0.23
τ_0.35	0.52
τ_0.36	0.72
τ_0.37	0.83
τ_0.38	0.89
τ_0.39	0.931
τ_0.4	0.951
τ_0.42	0.971
τ_0.44	0.979
τ_0.46	0.985
τ_0.48	0.99
τ_0.5	0.993
τ_0.55	0.997
τ_0.6	0.997
τ_0.65	0.998
τ_0.7	0.998
τ_0.8	0.998
τ_0.9	0.998
τ₁	0.998
τ_1.2	0.997
τ_1.4	0.994
τ_1.6	0.993
τ_1.8	0.986
τ₂	0.965
τ_2.2	0.91
τ_2.4	0.71

Poisson coef.: 0.297
Rigidity: 431 Pa*10⁸
Young module: 1119 Pa*10⁸
Knoop hardness: 640
Abrasion: 82

Climatic resistance: 1
Resistance to acids: 51.2
Phosphate resistance: 2

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
-30 ~ 70	60
100 ~ 300	73

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	5.2
20 ~ 40	t	5.3
40 ~ 60	t	5.5
60 ~ 80	t	5.8
-40 ~ -20	C'	6.1
-20 ~ 0	C'	6.1
0 ~ 20	C'	6.1
20 ~ 40	C'	6.2
40 ~ 60	C'	6.4
60 ~ 80	C'	6.6
-40 ~ -20		6.2
-20 ~ 0		6.2
0 ~ 20		6.1
20 ~ 40		6.2
40 ~ 60		6.5
60 ~ 80		6.6
-40 ~ -20	D	6.4
-20 ~ 0	D	6.4
0 ~ 20	D	6.4
20 ~ 40	D	6.5
40 ~ 60	D	6.7
60 ~ 80	D	6.9
-40 ~ -20	e	6.6
-20 ~ 0	e	6.6
0 ~ 20	e	6.7
20 ~ 40	e	6.9
40 ~ 60	e	7.1
60 ~ 80	e	7.3
-40 ~ -20	F	7.3
-20 ~ 0	F	7.3
0 ~ 20	F	7.5
20 ~ 40	F	7.7
40 ~ 60	F	7.9
60 ~ 80	F	8.2
-40 ~ -20	g	8
-20 ~ 0	g	8.1
0 ~ 20	g	8.3
20 ~ 40	g	8.5
40 ~ 60	g	8.8
60 ~ 80	g	9.1