S-TIM 1 - O'Hara

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.625881 n_e = 1.630030	V_d = 35.69 V_e = 35.43	n_F - n_C = 0.017531 n_F' - n_C' = 0.017780	Coloring: 0.36 - 0.39 mkm.

Type: Sellmeier
Spectral range: 0.3650146 - 2.325 mkm.
C1 = 1.4496383 C2 = 0.122986408 C3 = 1.38066723 C4 = 0.0112094282 C5 = 0.059626577 C6 = 138.178326

Refraction index
n _2.3254	-----
n _1.9701	1.593373
n _1.5296	1.599699
n _1.06	1.607111
n _t	1.608050
n _s	1.612161
n _r	1.617901
n _C	1.620742
n _C'	1.621548
n _0.6328	1.622306
n _D	1.625728
n _d	1.625881
n _e	1.630030
n _F	1.638274
n _F'	1.639329
n _g	1.648606
n _h	1.657693
n _i	1.674539
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7239
P_C,A'	0.3210
P_d,C	0.2931
P_e,C	0.5297
P_g,d	1.2962
P_g,F	0.5893
P_h,g	0.5182
P_i,g	1.4791
P_C',t	0.7699
P_e,C'	0.4837
P_F',e	0.5303
P_i,F'	2.0083

transmittance: 10 mm
τ_0.36	0.09
τ_0.37	0.47
τ_0.38	0.76
τ_0.39	0.89
τ_0.4	0.945
τ_0.42	0.977
τ_0.44	0.984
τ_0.46	0.987
τ_0.48	0.99
τ_0.5	0.992
τ_0.55	0.997
τ_0.6	0.997
τ_0.65	0.996
τ_0.7	0.997
τ_0.8	0.998
τ_0.9	0.998
τ₁	0.998
τ_1.2	0.998
τ_1.4	0.993
τ_1.6	0.993
τ_1.8	0.98
τ₂	0.965
τ_2.2	0.917
τ_2.4	0.89

Poisson coef.: 0.234
Rigidity: 319 Pa*10⁸
Young module: 786 Pa*10⁸
Knoop hardness: 530
Abrasion: 136

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	81
100 ~ 300	96

Temperature coefs. of n_rel
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20	t	1.4
-20 ~ 0	t	1.5
0 ~ 20	t	1.6
20 ~ 40	t	1.7
40 ~ 60	t	1.8
60 ~ 80	t	1.9
-40 ~ -20	C'	2.1
-20 ~ 0	C'	2.2
0 ~ 20	C'	2.3
20 ~ 40	C'	2.4
40 ~ 60	C'	2.5
60 ~ 80	C'	2.6
-40 ~ -20		2.1
-20 ~ 0		2.2
0 ~ 20		2.3
20 ~ 40		2.4
40 ~ 60		2.5
60 ~ 80		2.6
-40 ~ -20	D	2.3
-20 ~ 0	D	2.4
0 ~ 20	D	2.6
20 ~ 40	D	2.7
40 ~ 60	D	2.8
60 ~ 80	D	2.9
-40 ~ -20	e	2.6
-20 ~ 0	e	2.7
0 ~ 20	e	2.9
20 ~ 40	e	3
40 ~ 60	e	3.1
60 ~ 80	e	3.2
-40 ~ -20	F	3.3
-20 ~ 0	F	3.5
0 ~ 20	F	3.6
20 ~ 40	F	3.8
40 ~ 60	F	3.9
60 ~ 80	F	4.1
-40 ~ -20	g	4.1
-20 ~ 0	g	4.3
0 ~ 20	g	4.5
20 ~ 40	g	4.7
40 ~ 60	g	4.9
60 ~ 80	g	5.1