S-TIH13 - O'Hara

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.740768 n_e = 1.747054	V_d = 27.78 V_e = 27.56	n_F - n_C = 0.026656 n_F' - n_C' = 0.027101	Coloring: 0.37 - 0.42 mkm.

Type: Sellmeier
Spectral range: 0.4046561 - 2.325 mkm.
C1 = 1.62224674 C2 = 0.293844589 C3 = 1.99225164 C4 = 0.0118368386 C5 = 0.0590208025 C6 = 171.959976

Refraction index
n _2.3254	-----
n _1.9701	1.696934
n _1.5296	1.704248
n _1.06	1.713636
n _t	1.714904
n _s	1.720618
n _r	1.728900
n _C	1.733088
n _C'	1.734284
n _0.6328	1.735411
n _D	1.740538
n _d	1.740768
n _e	1.747054
n _F	1.759744
n _F'	1.761385
n _g	1.775994
n _h	1.790586
n _i	-----
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.6821
P_C,A'	0.3092
P_d,C	0.2881
P_e,C	0.5239
P_g,d	1.3214
P_g,F	0.6095
P_h,g	0.5474
P_i,g	-----
P_C',t	0.7270
P_e,C'	0.4790
P_F',e	0.5376
P_i,F'	-----

transmittance: 10 mm
τ_0.37	0.08
τ_0.38	0.38
τ_0.39	0.64
τ_0.4	0.8
τ_0.42	0.921
τ_0.44	0.957
τ_0.46	0.97
τ_0.48	0.978
τ_0.5	0.984
τ_0.55	0.993
τ_0.6	0.993
τ_0.65	0.991
τ_0.7	0.994
τ_0.8	0.997
τ_0.9	0.998
τ₁	0.997
τ_1.2	0.998
τ_1.4	0.994
τ_1.6	0.993
τ_1.8	0.983
τ₂	0.974
τ_2.2	0.944
τ_2.4	0.92

Poisson coef.: 0.249
Rigidity: 360 Pa*10⁸
Young module: 899 Pa*10⁸
Knoop hardness: 510
Abrasion: 148

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	83
100 ~ 300	96

Temperature coefs. of n_rel
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20	t	1
-20 ~ 0	t	1
0 ~ 20	t	1.1
20 ~ 40	t	1.1
40 ~ 60	t	1.2
60 ~ 80	t	1.3
-40 ~ -20	C'	1.8
-20 ~ 0	C'	1.9
0 ~ 20	C'	2
20 ~ 40	C'	2.1
40 ~ 60	C'	2.2
60 ~ 80	C'	2.3
-40 ~ -20		1.8
-20 ~ 0		1.9
0 ~ 20		2.1
20 ~ 40		2.2
40 ~ 60		2.3
60 ~ 80		2.4
-40 ~ -20	D	2.1
-20 ~ 0	D	2.3
0 ~ 20	D	2.4
20 ~ 40	D	2.5
40 ~ 60	D	2.7
60 ~ 80	D	2.8
-40 ~ -20	e	2.6
-20 ~ 0	e	2.7
0 ~ 20	e	2.9
20 ~ 40	e	3
40 ~ 60	e	3.2
60 ~ 80	e	3.4
-40 ~ -20	F	3.6
-20 ~ 0	F	3.9
0 ~ 20	F	4.1
20 ~ 40	F	4.3
40 ~ 60	F	4.5
60 ~ 80	F	4.7
-40 ~ -20	g	4.9
-20 ~ 0	g	5.2
0 ~ 20	g	5.5
20 ~ 40	g	5.8
40 ~ 60	g	6.1
60 ~ 80	g	6.4