S-TIH14 - O'Hara

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.761820 n_e = 1.768589	V_d = 26.51 V_e = 26.30	n_F - n_C = 0.028728 n_F' - n_C' = 0.029220	Coloring: 0.37 - 0.42 mkm.

Type: Sellmeier
Spectral range: 0.4046561 - 2.325 mkm.
C1 = 1.68915108 C2 = 0.290462024 C3 = 2.37971516 C4 = 0.0128202514 C5 = 0.0618090841 C6 = 201.094352

Refraction index
n _2.3254	-----
n _1.9701	1.715539
n _1.5296	1.723017
n _1.06	1.732814
n _t	1.734154
n _s	1.740223
n _r	1.749075
n _C	1.753566
n _C'	1.754850
n _0.6328	1.756061
n _D	1.761572
n _d	1.761820
n _e	1.768589
n _F	1.782295
n _F'	1.784071
n _g	1.799922
n _h	1.815840
n _i	-----
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.6757
P_C,A'	0.3073
P_d,C	0.2873
P_e,C	0.5229
P_g,d	1.3262
P_g,F	0.6135
P_h,g	0.5540
P_i,g	-----
P_C',t	0.7204
P_e,C'	0.4782
P_F',e	0.5388
P_i,F'	-----

transmittance: 10 mm
τ_0.37	0.1
τ_0.38	0.43
τ_0.39	0.7
τ_0.4	0.84
τ_0.42	0.934
τ_0.44	0.96
τ_0.46	0.971
τ_0.48	0.977
τ_0.5	0.983
τ_0.55	0.993
τ_0.6	0.993
τ_0.65	0.99
τ_0.7	0.992
τ_0.8	0.997
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	0.988
τ₂	0.982
τ_2.2	0.961
τ_2.4	0.942

Poisson coef.: 0.254
Rigidity: 354 Pa*10⁸
Young module: 888 Pa*10⁸
Knoop hardness: 550
Abrasion: 163

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

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
-30 ~ 70	87
100 ~ 300	100

Temperature coefs. of n_rel
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20	t	0.2
-20 ~ 0	t	0.3
0 ~ 20	t	0.4
20 ~ 40	t	0.5
40 ~ 60	t	0.6
60 ~ 80	t	0.7
-40 ~ -20	C'	0.9
-20 ~ 0	C'	1.1
0 ~ 20	C'	1.2
20 ~ 40	C'	1.4
40 ~ 60	C'	1.6
60 ~ 80	C'	1.7
-40 ~ -20		1
-20 ~ 0		1.2
0 ~ 20		1.3
20 ~ 40		1.5
40 ~ 60		1.7
60 ~ 80		1.8
-40 ~ -20	D	1.4
-20 ~ 0	D	1.6
0 ~ 20	D	1.7
20 ~ 40	D	2
40 ~ 60	D	2.2
60 ~ 80	D	2.4
-40 ~ -20	e	1.8
-20 ~ 0	e	2
0 ~ 20	e	2.2
20 ~ 40	e	2.4
40 ~ 60	e	2.7
60 ~ 80	e	2.9
-40 ~ -20	F	2.9
-20 ~ 0	F	3.2
0 ~ 20	F	3.5
20 ~ 40	F	3.8
40 ~ 60	F	4.1
60 ~ 80	F	4.4
-40 ~ -20	g	4.3
-20 ~ 0	g	4.7
0 ~ 20	g	5.1
20 ~ 40	g	5.5
40 ~ 60	g	5.9
60 ~ 80	g	6.2