S-BAH10 - O'Hara

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.670028 n_e = 1.673401	V_d = 47.23 V_e = 46.94	n_F - n_C = 0.014186 n_F' - n_C' = 0.014343	Coloring: 0.34 - 0.39 mkm.

Type: Sellmeier
Spectral range: 0.3650146 - 2.325 mkm.
C1 = 1.59034337 C2 = 0.138464579 C3 = 1.21988043 C4 = 0.0093273434 C5 = 0.0427498654 C6 = 119.251777

Refraction index
n _2.3254	-----
n _1.9701	1.641079
n _1.5296	1.647221
n _1.06	1.654083
n _t	1.654921
n _s	1.658521
n _r	1.663409
n _C	1.665787
n _C'	1.666457
n _0.6328	1.667085
n _D	1.669903
n _d	1.670028
n _e	1.673401
n _F	1.679973
n _F'	1.680801
n _g	1.687956
n _h	1.694731
n _i	1.706627
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7659
P_C,A'	0.3337
P_d,C	0.2989
P_e,C	0.5367
P_g,d	1.2637
P_g,F	0.5627
P_h,g	0.4775
P_i,g	1.3160
P_C',t	0.8131
P_e,C'	0.4894
P_F',e	0.5216
P_i,F'	1.8204

transmittance: 10 mm
τ_0.34	0.01
τ_0.35	0.19
τ_0.36	0.48
τ_0.37	0.7
τ_0.38	0.83
τ_0.39	0.902
τ_0.4	0.939
τ_0.42	0.969
τ_0.44	0.979
τ_0.46	0.984
τ_0.48	0.989
τ_0.5	0.993
τ_0.55	0.997
τ_0.6	0.996
τ_0.65	0.996
τ_0.7	0.997
τ_0.8	0.998
τ_0.9	0.997
τ₁	0.997
τ_1.2	0.998
τ_1.4	0.996
τ_1.6	0.996
τ_1.8	0.991
τ₂	0.981
τ_2.2	0.949
τ_2.4	0.85

Poisson coef.: 0.273
Rigidity: 378 Pa*10⁸
Young module: 962 Pa*10⁸
Knoop hardness: 560
Abrasion: 127

Climatic resistance: 2
Resistance to acids: 51.2
Phosphate resistance: 1

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
-30 ~ 70	68
100 ~ 300	80

Temperature coefs. of n_rel
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20	t	3.4
-20 ~ 0	t	3.5
0 ~ 20	t	3.5
20 ~ 40	t	3.6
40 ~ 60	t	3.6
60 ~ 80	t	3.7
-40 ~ -20	C'	3.9
-20 ~ 0	C'	3.9
0 ~ 20	C'	4
20 ~ 40	C'	4.1
40 ~ 60	C'	4.2
60 ~ 80	C'	4.2
-40 ~ -20		3.9
-20 ~ 0		4
0 ~ 20		4.1
20 ~ 40		4.1
40 ~ 60		4.2
60 ~ 80		4.3
-40 ~ -20	D	4.1
-20 ~ 0	D	4.1
0 ~ 20	D	4.2
20 ~ 40	D	4.3
40 ~ 60	D	4.4
60 ~ 80	D	4.5
-40 ~ -20	e	4.3
-20 ~ 0	e	4.4
0 ~ 20	e	4.5
20 ~ 40	e	4.6
40 ~ 60	e	4.7
60 ~ 80	e	4.8
-40 ~ -20	F	4.8
-20 ~ 0	F	4.9
0 ~ 20	F	5
20 ~ 40	F	5.2
40 ~ 60	F	5.3
60 ~ 80	F	5.4
-40 ~ -20	g	5.3
-20 ~ 0	g	5.5
0 ~ 20	g	5.6
20 ~ 40	g	5.7
40 ~ 60	g	5.9
60 ~ 80	g	6