S-BAM 3 - O'Hara

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.582673 n_e = 1.585654	V_d = 46.42 V_e = 46.12	n_F - n_C = 0.012551 n_F' - n_C' = 0.012695	Coloring: 0.35 - 0.38 mkm.

Type: Sellmeier
Spectral range: 0.3650146 - 2.325 mkm.
C1 = 1.36955358 C2 = 0.0853825867 C3 = 1.16159771 C4 = 0.00941331434 C5 = 0.0504359027 C6 = 130.548899

Refraction index
n _2.3254	-----
n _1.9701	1.556854
n _1.5296	1.562418
n _1.06	1.568577
n _t	1.569322
n _s	1.572514
n _r	1.576831
n _C	1.578929
n _C'	1.579520
n _0.6328	1.580074
n _D	1.582562
n _d	1.582673
n _e	1.585654
n _F	1.591480
n _F'	1.592216
n _g	1.598599
n _h	1.604685
n _i	1.615511
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7653
P_C,A'	0.3328
P_d,C	0.2982
P_e,C	0.5358
P_g,d	1.2688
P_g,F	0.5671
P_h,g	0.4849
P_i,g	1.3474
P_C',t	0.8124
P_e,C'	0.4887
P_F',e	0.5228
P_i,F'	1.8559

transmittance: 10 mm
τ_0.35	0.11
τ_0.36	0.44
τ_0.37	0.71
τ_0.38	0.85
τ_0.39	0.92
τ_0.4	0.954
τ_0.42	0.979
τ_0.44	0.986
τ_0.46	0.989
τ_0.48	0.992
τ_0.5	0.994
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	0.997
τ_1.4	0.991
τ_1.6	0.993
τ_1.8	0.981
τ₂	0.964
τ_2.2	0.911
τ_2.4	0.87

Poisson coef.: 0.242
Rigidity: 311 Pa*10⁸
Young module: 771 Pa*10⁸
Knoop hardness: 520
Abrasion: 155

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	85
100 ~ 300	100

Temperature coefs. of n_rel
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20	t	0.2
-20 ~ 0	t	0.4
0 ~ 20	t	0.4
20 ~ 40	t	0.5
40 ~ 60	t	0.6
60 ~ 80	t	0.5
-40 ~ -20	C'	0.8
-20 ~ 0	C'	0.8
0 ~ 20	C'	0.9
20 ~ 40	C'	1
40 ~ 60	C'	1.1
60 ~ 80	C'	1.1
-40 ~ -20		0.8
-20 ~ 0		0.9
0 ~ 20		0.9
20 ~ 40		1
40 ~ 60		1.1
60 ~ 80		1.2
-40 ~ -20	D	0.9
-20 ~ 0	D	1
0 ~ 20	D	1.1
20 ~ 40	D	1.2
40 ~ 60	D	1.3
60 ~ 80	D	1.4
-40 ~ -20	e	1.2
-20 ~ 0	e	1.2
0 ~ 20	e	1.3
20 ~ 40	e	1.4
40 ~ 60	e	1.5
60 ~ 80	e	1.6
-40 ~ -20	F	1.6
-20 ~ 0	F	1.7
0 ~ 20	F	1.8
20 ~ 40	F	1.9
40 ~ 60	F	2
60 ~ 80	F	2.2
-40 ~ -20	g	2
-20 ~ 0	g	2.2
0 ~ 20	g	2.3
20 ~ 40	g	2.5
40 ~ 60	g	2.6
60 ~ 80	g	2.8