S-LAM61 - O'Hara

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.720001 n_e = 1.723720	V_d = 46.02 V_e = 45.74	n_F - n_C = 0.015643 n_F' - n_C' = 0.015819	Coloring: 0.34 - 0.39 mkm.

Type: Sellmeier
Spectral range: 0.3650146 - 2.325 mkm.
C1 = 1.7388333 C2 = 0.15093743 C3 = 1.12118445 C4 = 0.00980244105 C5 = 0.0433179685 C6 = 101.214625

Refraction index
n _2.3254	-----
n _1.9701	1.688540
n _1.5296	1.695111
n _1.06	1.702509
n _t	1.703420
n _s	1.707349
n _r	1.712713
n _C	1.715329
n _C'	1.716067
n _0.6328	1.716758
n _D	1.719863
n _d	1.720001
n _e	1.723720
n _F	1.730973
n _F'	1.731887
n _g	1.739789
n _h	1.747274
n _i	1.760425
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7612
P_C,A'	0.3327
P_d,C	0.2986
P_e,C	0.5363
P_g,d	1.2648
P_g,F	0.5635
P_h,g	0.4784
P_i,g	1.3190
P_C',t	0.8084
P_e,C'	0.4892
P_F',e	0.5220
P_i,F'	1.8242

transmittance: 10 mm
τ_0.34	0.03
τ_0.35	0.26
τ_0.36	0.56
τ_0.37	0.75
τ_0.38	0.86
τ_0.39	0.914
τ_0.4	0.943
τ_0.42	0.969
τ_0.44	0.979
τ_0.46	0.985
τ_0.48	0.989
τ_0.5	0.993
τ_0.55	0.997
τ_0.6	0.996
τ_0.65	0.997
τ_0.7	0.997
τ_0.8	0.998
τ_0.9	0.999
τ₁	0.998
τ_1.2	0.999
τ_1.4	0.997
τ_1.6	0.997
τ_1.8	0.991
τ₂	0.978
τ_2.2	0.942
τ_2.4	0.8

Poisson coef.: 0.29
Rigidity: 363 Pa*10⁸
Young module: 937 Pa*10⁸
Knoop hardness: 560
Abrasion: 144

Climatic resistance: 2
Resistance to acids: 52.2
Phosphate resistance: 2.2

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
-30 ~ 70	66
100 ~ 300	80

Temperature coefs. of n_rel
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20	t	2.9
-20 ~ 0	t	3
0 ~ 20	t	3.2
20 ~ 40	t	3.2
40 ~ 60	t	3.3
60 ~ 80	t	3.4
-40 ~ -20	C'	3.5
-20 ~ 0	C'	3.6
0 ~ 20	C'	3.8
20 ~ 40	C'	3.9
40 ~ 60	C'	4
60 ~ 80	C'	4.2
-40 ~ -20		3.5
-20 ~ 0		3.7
0 ~ 20		3.8
20 ~ 40		3.9
40 ~ 60		4.1
60 ~ 80		4.2
-40 ~ -20	D	3.7
-20 ~ 0	D	3.9
0 ~ 20	D	4
20 ~ 40	D	4.1
40 ~ 60	D	4.3
60 ~ 80	D	4.4
-40 ~ -20	e	3.9
-20 ~ 0	e	4.1
0 ~ 20	e	4.3
20 ~ 40	e	4.4
40 ~ 60	e	4.6
60 ~ 80	e	4.7
-40 ~ -20	F	4.5
-20 ~ 0	F	4.7
0 ~ 20	F	4.8
20 ~ 40	F	5
40 ~ 60	F	5.2
60 ~ 80	F	5.4
-40 ~ -20	g	5.1
-20 ~ 0	g	5.3
0 ~ 20	g	5.5
20 ~ 40	g	5.7
40 ~ 60	g	5.9
60 ~ 80	g	6.1