S-TIL 1 - O'Hara

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.548140 n_e = 1.550983	V_d = 45.78 V_e = 45.49	n_F - n_C = 0.011972 n_F' - n_C' = 0.012111	Coloring: 0.34 - 0.37 mkm.

Type: Sellmeier
Spectral range: 0.3650146 - 2.325 mkm.
C1 = 1.25088944 C2 = 0.0997973327 C3 = 1.20583504 C4 = 0.00883921279 C5 = 0.0482685052 C6 = 137.414953

Refraction index
n _2.3254	-----
n _1.9701	1.523072
n _1.5296	1.528609
n _1.06	1.534647
n _t	1.535369
n _s	1.538441
n _r	1.542570
n _C	1.544571
n _C'	1.545135
n _0.6328	1.545663
n _D	1.548035
n _d	1.548140
n _e	1.550983
n _F	1.556543
n _F'	1.557246
n _g	1.563351
n _h	1.569184
n _i	1.579586
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7686
P_C,A'	0.3331
P_d,C	0.2981
P_e,C	0.5355
P_g,d	1.2704
P_g,F	0.5685
P_h,g	0.4872
P_i,g	1.3561
P_C',t	0.8157
P_e,C'	0.4884
P_F',e	0.5231
P_i,F'	1.8659

transmittance: 10 mm
τ_0.34	0.01
τ_0.35	0.29
τ_0.36	0.69
τ_0.37	0.87
τ_0.38	0.944
τ_0.39	0.972
τ_0.4	0.984
τ_0.42	0.992
τ_0.44	0.994
τ_0.46	0.995
τ_0.48	0.996
τ_0.5	0.997
τ_0.55	0.998
τ_0.6	0.998
τ_0.65	0.998
τ_0.7	0.998
τ_0.8	0.998
τ_0.9	0.998
τ₁	0.997
τ_1.2	0.997
τ_1.4	0.996
τ_1.6	0.993
τ_1.8	0.977
τ₂	0.948
τ_2.2	0.89
τ_2.4	0.85

Poisson coef.: 0.222
Rigidity: 288 Pa*10⁸
Young module: 705 Pa*10⁸
Knoop hardness: 490
Abrasion: 128

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

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
-30 ~ 70	86
100 ~ 300	101

Temperature coefs. of n_rel
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20	t	1.1
-20 ~ 0	t	1.1
0 ~ 20	t	1.1
20 ~ 40	t	1.1
40 ~ 60	t	1.1
60 ~ 80	t	1.1
-40 ~ -20	C'	1.5
-20 ~ 0	C'	1.5
0 ~ 20	C'	1.5
20 ~ 40	C'	1.6
40 ~ 60	C'	1.6
60 ~ 80	C'	1.6
-40 ~ -20		1.5
-20 ~ 0		1.6
0 ~ 20		1.6
20 ~ 40		1.6
40 ~ 60		1.6
60 ~ 80		1.6
-40 ~ -20	D	1.7
-20 ~ 0	D	1.7
0 ~ 20	D	1.7
20 ~ 40	D	1.8
40 ~ 60	D	1.8
60 ~ 80	D	1.8
-40 ~ -20	e	1.9
-20 ~ 0	e	1.9
0 ~ 20	e	2
20 ~ 40	e	2
40 ~ 60	e	2
60 ~ 80	e	2.1
-40 ~ -20	F	2.3
-20 ~ 0	F	2.4
0 ~ 20	F	2.4
20 ~ 40	F	2.5
40 ~ 60	F	2.6
60 ~ 80	F	2.6
-40 ~ -20	g	2.8
-20 ~ 0	g	2.9
0 ~ 20	g	3
20 ~ 40	g	3.1
40 ~ 60	g	3.1
60 ~ 80	g	3.2