S-TIL 6 - O'Hara

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.531716 n_e = 1.534304	V_d = 48.84 V_e = 48.54	n_F - n_C = 0.010886 n_F' - n_C' = 0.011005	Coloring: 0.34 - 0.37 mkm.

Type: Sellmeier
Spectral range: 0.3650146 - 2.325 mkm.
C1 = 1.17701777 C2 = 0.12795803 C3 = 1.34740124 C4 = 0.00771087686 C5 = 0.0411325328 C6 = 154.531692

Refraction index
n _2.3254	-----
n _1.9701	1.507970
n _1.5296	1.513421
n _1.06	1.519244
n _t	1.519926
n _s	1.522804
n _r	1.526619
n _C	1.528455
n _C'	1.528972
n _0.6328	1.529455
n _D	1.531620
n _d	1.531716
n _e	1.534304
n _F	1.539342
n _F'	1.539977
n _g	1.545472
n _h	1.550689
n _i	1.559891
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7834
P_C,A'	0.3368
P_d,C	0.2995
P_e,C	0.5371
P_g,d	1.2635
P_g,F	0.5630
P_h,g	0.4791
P_i,g	1.3244
P_C',t	0.8308
P_e,C'	0.4897
P_F',e	0.5211
P_i,F'	1.8291

transmittance: 10 mm
τ_0.34	0.07
τ_0.35	0.44
τ_0.36	0.74
τ_0.37	0.88
τ_0.38	0.948
τ_0.39	0.973
τ_0.4	0.985
τ_0.42	0.99
τ_0.44	0.989
τ_0.46	0.99
τ_0.48	0.991
τ_0.5	0.993
τ_0.55	0.994
τ_0.6	0.994
τ_0.65	0.992
τ_0.7	0.996
τ_0.8	0.998
τ_0.9	0.997
τ₁	0.997
τ_1.2	0.996
τ_1.4	0.995
τ_1.6	0.993
τ_1.8	0.977
τ₂	0.947
τ_2.2	0.89
τ_2.4	0.85

Poisson coef.: 0.146
Rigidity: 283 Pa*10⁸
Young module: 648 Pa*10⁸
Knoop hardness: 490
Abrasion: 114

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	82
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	1.4
0 ~ 20	t	1.4
20 ~ 40	t	1.4
40 ~ 60	t	1.4
60 ~ 80	t	1.4
-40 ~ -20	C'	1.8
-20 ~ 0	C'	1.8
0 ~ 20	C'	1.8
20 ~ 40	C'	1.8
40 ~ 60	C'	1.8
60 ~ 80	C'	1.8
-40 ~ -20		1.8
-20 ~ 0		1.8
0 ~ 20		1.8
20 ~ 40		1.8
40 ~ 60		1.9
60 ~ 80		1.9
-40 ~ -20	D	1.9
-20 ~ 0	D	1.9
0 ~ 20	D	1.9
20 ~ 40	D	1.9
40 ~ 60	D	1.9
60 ~ 80	D	1.9
-40 ~ -20	e	2.2
-20 ~ 0	e	2.2
0 ~ 20	e	2.2
20 ~ 40	e	2.2
40 ~ 60	e	2.2
60 ~ 80	e	2.2
-40 ~ -20	F	2.5
-20 ~ 0	F	2.6
0 ~ 20	F	2.6
20 ~ 40	F	2.7
40 ~ 60	F	2.7
60 ~ 80	F	2.7
-40 ~ -20	g	3
-20 ~ 0	g	3
0 ~ 20	g	3.1
20 ~ 40	g	3.1
40 ~ 60	g	3.2
60 ~ 80	g	3.3