S-LAH60 - O'Hara

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.833999 n_e = 1.839322	V_d = 37.16 V_e = 36.91	n_F - n_C = 0.022443 n_F' - n_C' = 0.022735	Coloring: 0.34 - 0.42 mkm.

Type: Sellmeier
Spectral range: 0.3650146 - 2.325 mkm.
C1 = 1.95243469 C2 = 0.30710021 C3 = 1.56578094 C4 = 0.0106442437 C5 = 0.0456735302 C6 = 110.28141

Refraction index
n _2.3254	-----
n _1.9701	1.792050
n _1.5296	1.800175
n _1.06	1.809724
n _t	1.810939
n _s	1.816265
n _r	1.823701
n _C	1.827375
n _C'	1.828416
n _0.6328	1.829393
n _D	1.833803
n _d	1.833999
n _e	1.839322
n _F	1.849818
n _F'	1.851152
n _g	1.862781
n _h	1.873963
n _i	1.894030
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7323
P_C,A'	0.3244
P_d,C	0.2951
P_e,C	0.5323
P_g,d	1.2824
P_g,F	0.5775
P_h,g	0.4982
P_i,g	1.3923
P_C',t	0.7787
P_e,C'	0.4859
P_F',e	0.5270
P_i,F'	1.9105

transmittance: 10 mm
τ_0.34	0.03
τ_0.35	0.27
τ_0.36	0.54
τ_0.37	0.72
τ_0.38	0.83
τ_0.39	0.88
τ_0.4	0.924
τ_0.42	0.957
τ_0.44	0.972
τ_0.46	0.98
τ_0.48	0.986
τ_0.5	0.99
τ_0.55	0.996
τ_0.6	0.997
τ_0.65	0.997
τ_0.7	0.998
τ_0.8	0.999
τ_0.9	0.998
τ₁	0.997
τ_1.2	0.996
τ_1.4	0.993
τ_1.6	0.992
τ_1.8	0.984
τ₂	0.964
τ_2.2	0.906
τ_2.4	0.72

Poisson coef.: 0.296
Rigidity: 481 Pa*10⁸
Young module: 1248 Pa*10⁸
Knoop hardness: 670
Abrasion: 78

Climatic resistance: 1
Resistance to acids: 4.2
Phosphate resistance: 1

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
-30 ~ 70	56
100 ~ 300	71

Temperature coefs. of n_rel
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20	t	6
-20 ~ 0	t	6.3
0 ~ 20	t	6.3
20 ~ 40	t	6.4
40 ~ 60	t	6.6
60 ~ 80	t	6.7
-40 ~ -20	C'	6.9
-20 ~ 0	C'	7
0 ~ 20	C'	7.1
20 ~ 40	C'	7.3
40 ~ 60	C'	7.4
60 ~ 80	C'	7.5
-40 ~ -20		6.9
-20 ~ 0		7.1
0 ~ 20		7.2
20 ~ 40		7.3
40 ~ 60		7.5
60 ~ 80		7.6
-40 ~ -20	D	7.3
-20 ~ 0	D	7.4
0 ~ 20	D	7.6
20 ~ 40	D	7.7
40 ~ 60	D	7.9
60 ~ 80	D	8
-40 ~ -20	e	7.6
-20 ~ 0	e	7.7
0 ~ 20	e	7.9
20 ~ 40	e	8.1
40 ~ 60	e	8.3
60 ~ 80	e	8.4
-40 ~ -20	F	8.4
-20 ~ 0	F	8.6
0 ~ 20	F	8.8
20 ~ 40	F	9
40 ~ 60	F	9.3
60 ~ 80	F	9.5
-40 ~ -20	g	9.3
-20 ~ 0	g	9.6
0 ~ 20	g	9.8
20 ~ 40	g	10.1
40 ~ 60	g	10.3
60 ~ 80	g	10.6