S-TIM 3 - O'Hara

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.612929 n_e = 1.616850	V_d = 37.00 V_e = 36.73	n_F - n_C = 0.016563 n_F' - n_C' = 0.016791	Coloring: 0.36 - 0.39 mkm.

Type: Sellmeier
Spectral range: 0.3650146 - 2.325 mkm.
C1 = 1.40691144 C2 = 0.128369745 C3 = 1.51826191 C4 = 0.0105633641 C5 = 0.0568483105 C6 = 152.107924

Refraction index
n _2.3254	-----
n _1.9701	1.581541
n _1.5296	1.587809
n _1.06	1.595047
n _t	1.595953
n _s	1.599897
n _r	1.605365
n _C	1.608062
n _C'	1.608826
n _0.6328	1.609544
n _D	1.612784
n _d	1.612929
n _e	1.616850
n _F	1.624625
n _F'	1.625618
n _g	1.634336
n _h	1.642842
n _i	1.658503
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7310
P_C,A'	0.3228
P_d,C	0.2938
P_e,C	0.5305
P_g,d	1.2924
P_g,F	0.5862
P_h,g	0.5135
P_i,g	1.4590
P_C',t	0.7772
P_e,C'	0.4844
P_F',e	0.5293
P_i,F'	1.9854

transmittance: 10 mm
τ_0.36	0.13
τ_0.37	0.53
τ_0.38	0.79
τ_0.39	0.907
τ_0.4	0.95
τ_0.42	0.976
τ_0.44	0.984
τ_0.46	0.986
τ_0.48	0.989
τ_0.5	0.992
τ_0.55	0.996
τ_0.6	0.996
τ_0.65	0.995
τ_0.7	0.997
τ_0.8	0.999
τ_0.9	0.998
τ₁	0.996
τ_1.2	0.996
τ_1.4	0.994
τ_1.6	0.994
τ_1.8	0.983
τ₂	0.971
τ_2.2	0.929
τ_2.4	0.913

Poisson coef.: 0.229
Rigidity: 317 Pa*10⁸
Young module: 779 Pa*10⁸
Knoop hardness: 510
Abrasion: 129

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	77
100 ~ 300	91

Temperature coefs. of n_rel
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20	t	1.8
-20 ~ 0	t	1.8
0 ~ 20	t	2
20 ~ 40	t	2.1
40 ~ 60	t	2.2
60 ~ 80	t	2.3
-40 ~ -20	C'	2.4
-20 ~ 0	C'	2.5
0 ~ 20	C'	2.6
20 ~ 40	C'	2.8
40 ~ 60	C'	2.9
60 ~ 80	C'	3
-40 ~ -20		2.5
-20 ~ 0		2.6
0 ~ 20		2.7
20 ~ 40		2.8
40 ~ 60		2.9
60 ~ 80		3
-40 ~ -20	D	2.7
-20 ~ 0	D	2.8
0 ~ 20	D	3
20 ~ 40	D	3.1
40 ~ 60	D	3.2
60 ~ 80	D	3.3
-40 ~ -20	e	3
-20 ~ 0	e	3.1
0 ~ 20	e	3.2
20 ~ 40	e	3.4
40 ~ 60	e	3.5
60 ~ 80	e	3.6
-40 ~ -20	F	3.6
-20 ~ 0	F	3.8
0 ~ 20	F	3.9
20 ~ 40	F	4.1
40 ~ 60	F	4.3
60 ~ 80	F	4.4
-40 ~ -20	g	4.3
-20 ~ 0	g	4.5
0 ~ 20	g	4.7
20 ~ 40	g	5
40 ~ 60	g	5.2
60 ~ 80	g	5.4