S-LAM59 - O'Hara

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.697002 n_e = 1.700420	V_d = 48.51 V_e = 48.23	n_F - n_C = 0.014366 n_F' - n_C' = 0.014519	Coloring: 0.33 - 0.38 mkm.

Type: Sellmeier
Spectral range: 0.3650146 - 2.325 mkm.
C1 = 1.63056133 C2 = 0.186994897 C3 = 1.30014289 C4 = 0.00899690705 C5 = 0.0368011993 C6 = 122.239544

Refraction index
n _2.3254	-----
n _1.9701	1.667482
n _1.5296	1.673758
n _1.06	1.680770
n _t	1.681625
n _s	1.685297
n _r	1.690277
n _C	1.692695
n _C'	1.693376
n _0.6328	1.694014
n _D	1.696875
n _d	1.697002
n _e	1.700420
n _F	1.707061
n _F'	1.707896
n _g	1.715090
n _h	1.721865
n _i	1.733660
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7705
P_C,A'	0.3353
P_d,C	0.2997
P_e,C	0.5377
P_g,d	1.2590
P_g,F	0.5588
P_h,g	0.4715
P_i,g	1.2925
P_C',t	0.8179
P_e,C'	0.4903
P_F',e	0.5203
P_i,F'	1.7933

transmittance: 10 mm
τ_0.34	0.14
τ_0.35	0.47
τ_0.36	0.73
τ_0.37	0.86
τ_0.38	0.923
τ_0.39	0.954
τ_0.4	0.969
τ_0.42	0.982
τ_0.44	0.986
τ_0.46	0.989
τ_0.48	0.992
τ_0.5	0.995
τ_0.55	0.997
τ_0.6	0.996
τ_0.65	0.995
τ_0.7	0.997
τ_0.8	0.998
τ_0.9	0.998
τ₁	0.998
τ_1.2	0.998
τ_1.4	0.996
τ_1.6	0.996
τ_1.8	0.991
τ₂	0.982
τ_2.2	0.952
τ_2.4	0.85

Poisson coef.: 0.277
Rigidity: 394 Pa*10⁸
Young module: 1006 Pa*10⁸
Knoop hardness: 600
Abrasion: 142

Climatic resistance: 3
Resistance to acids: 5.2
Phosphate resistance: 1

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
-30 ~ 70	71
100 ~ 300	83

Temperature coefs. of n_rel
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20	C'	2.7
-20 ~ 0	C'	2.8
0 ~ 20	C'	2.9
20 ~ 40	C'	3
40 ~ 60	C'	3.1
60 ~ 80	C'	3.1
-40 ~ -20		2.7
-20 ~ 0		2.8
0 ~ 20		2.9
20 ~ 40		3
40 ~ 60		3.1
60 ~ 80		3.2
-40 ~ -20	D	2.9
-20 ~ 0	D	3
0 ~ 20	D	3.1
20 ~ 40	D	3.2
40 ~ 60	D	3.3
60 ~ 80	D	3.4
-40 ~ -20	e	3.1
-20 ~ 0	e	3.2
0 ~ 20	e	3.3
20 ~ 40	e	3.4
40 ~ 60	e	3.5
60 ~ 80	e	3.6
-40 ~ -20	F	3.5
-20 ~ 0	F	3.7
0 ~ 20	F	3.8
20 ~ 40	F	3.9
40 ~ 60	F	4.1
60 ~ 80	F	4.2
-40 ~ -20	g	4
-20 ~ 0	g	4.2
0 ~ 20	g	4.3
20 ~ 40	g	4.5
40 ~ 60	g	4.6
60 ~ 80	g	4.8