S-TIM39 - O'Hara

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.666799 n_e = 1.671567	V_d = 33.05 V_e = 32.79	n_F - n_C = 0.020172 n_F' - n_C' = 0.020476	Coloring: 0.36 - 0.40 mkm.

Type: Sellmeier
Spectral range: 0.4046561 - 2.325 mkm.
C1 = 1.47008105 C2 = 0.224752746 C3 = 2.44968592 C4 = 0.0102900432 C5 = 0.0541276904 C6 = 237.43494

Refraction index
n _2.3254	-----
n _1.9701	1.631321
n _1.5296	1.637764
n _1.06	1.645645
n _t	1.646672
n _s	1.651228
n _r	1.657694
n _C	1.660924
n _C'	1.661843
n _0.6328	1.662707
n _D	1.666624
n _d	1.666799
n _e	1.671567
n _F	1.681097
n _F'	1.682319
n _g	1.693114
n _h	1.703730
n _i	-----
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7065
P_C,A'	0.3162
P_d,C	0.2912
P_e,C	0.5276
P_g,d	1.3045
P_g,F	0.5957
P_h,g	0.5262
P_i,g	-----
P_C',t	0.7520
P_e,C'	0.4820
P_F',e	0.5330
P_i,F'	-----

transmittance: 10 mm
τ_0.36	0.03
τ_0.37	0.33
τ_0.38	0.66
τ_0.39	0.82
τ_0.4	0.906
τ_0.42	0.962
τ_0.44	0.973
τ_0.46	0.98
τ_0.48	0.985
τ_0.5	0.989
τ_0.55	0.994
τ_0.6	0.995
τ_0.65	0.994
τ_0.7	0.995
τ_0.8	0.998
τ_0.9	0.999
τ₁	0.998
τ_1.2	0.998
τ_1.4	0.995
τ_1.6	0.994
τ_1.8	0.983
τ₂	0.971
τ_2.2	0.937
τ_2.4	0.913

Poisson coef.: 0.246
Rigidity: 328 Pa*10⁸
Young module: 817 Pa*10⁸
Knoop hardness: 550
Abrasion: 160

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	87
100 ~ 300	104

Temperature coefs. of n_rel
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20	t	0.4
-20 ~ 0	t	0.5
0 ~ 20	t	0.7
20 ~ 40	t	0.7
40 ~ 60	t	0.8
60 ~ 80	t	0.8
-40 ~ -20	C'	1.1
-20 ~ 0	C'	1.3
0 ~ 20	C'	1.4
20 ~ 40	C'	1.5
40 ~ 60	C'	1.5
60 ~ 80	C'	1.6
-40 ~ -20		1.2
-20 ~ 0		1.3
0 ~ 20		1.4
20 ~ 40		1.5
40 ~ 60		1.5
60 ~ 80		1.6
-40 ~ -20	D	1.3
-20 ~ 0	D	1.4
0 ~ 20	D	1.5
20 ~ 40	D	1.7
40 ~ 60	D	1.8
60 ~ 80	D	1.9
-40 ~ -20	e	1.7
-20 ~ 0	e	1.8
0 ~ 20	e	2
20 ~ 40	e	2.1
40 ~ 60	e	2.2
60 ~ 80	e	2.3
-40 ~ -20	F	2.5
-20 ~ 0	F	2.7
0 ~ 20	F	2.8
20 ~ 40	F	3
40 ~ 60	F	3.2
60 ~ 80	F	3.3
-40 ~ -20	g	3.4
-20 ~ 0	g	3.6
0 ~ 20	g	3.9
20 ~ 40	g	4.1
40 ~ 60	g	4.3
60 ~ 80	g	4.5