S-LAH65 - O'Hara

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.803999 n_e = 1.808108	V_d = 46.57 V_e = 46.32	n_F - n_C = 0.017264 n_F' - n_C' = 0.017444	Coloring: 0.32 - 0.39 mkm.

Type: Sellmeier
Spectral range: 0.3650146 - 2.325 mkm.
C1 = 1.68191258 C2 = 0.493779818 C3 = 1.45682822 C4 = 0.0077668425 C5 = 0.0288916181 C6 = 99.2574356

Refraction index
n _2.3254	-----
n _1.9701	1.767337
n _1.5296	1.775471
n _1.06	1.784306
n _t	1.785363
n _s	1.789861
n _r	1.795897
n _C	1.798815
n _C'	1.799635
n _0.6328	1.800404
n _D	1.803847
n _d	1.803999
n _e	1.808108
n _F	1.816079
n _F'	1.817080
n _g	1.825699
n _h	1.833800
n _i	1.847855
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7791
P_C,A'	0.3371
P_d,C	0.3003
P_e,C	0.5382
P_g,d	1.2569
P_g,F	0.5572
P_h,g	0.4692
P_i,g	1.2833
P_C',t	0.8267
P_e,C'	0.4907
P_F',e	0.5196
P_i,F'	1.7826

transmittance: 10 mm
τ_0.32	0.08
τ_0.33	0.28
τ_0.34	0.5
τ_0.35	0.66
τ_0.36	0.78
τ_0.37	0.86
τ_0.38	0.916
τ_0.39	0.947
τ_0.4	0.964
τ_0.42	0.98
τ_0.44	0.988
τ_0.46	0.992
τ_0.48	0.995
τ_0.5	0.996
τ_0.55	0.998
τ_0.6	0.998
τ_0.65	0.998
τ_0.7	0.998
τ_0.8	0.998
τ_0.9	0.997
τ₁	0.997
τ_1.2	0.997
τ_1.4	0.994
τ_1.6	0.993
τ_1.8	0.983
τ₂	0.959
τ_2.2	0.89
τ_2.4	0.66

Poisson coef.: 0.295
Rigidity: 486 Pa*10⁸
Young module: 1258 Pa*10⁸
Knoop hardness: 730
Abrasion: 56

Climatic resistance: 1
Resistance to acids: 4.1
Phosphate resistance: 1

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
-30 ~ 70	60
100 ~ 300	73

Temperature coefs. of n_rel
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20	t	3.6
-20 ~ 0	t	3.7
0 ~ 20	t	3.8
20 ~ 40	t	3.9
40 ~ 60	t	4
60 ~ 80	t	4
-40 ~ -20	C'	4
-20 ~ 0	C'	4.1
0 ~ 20	C'	4.2
20 ~ 40	C'	4.4
40 ~ 60	C'	4.5
60 ~ 80	C'	4.6
-40 ~ -20		4
-20 ~ 0		4.1
0 ~ 20		4.3
20 ~ 40		4.4
40 ~ 60		4.5
60 ~ 80		4.7
-40 ~ -20	D	4.2
-20 ~ 0	D	4.4
0 ~ 20	D	4.5
20 ~ 40	D	4.7
40 ~ 60	D	4.8
60 ~ 80	D	5
-40 ~ -20	e	4.4
-20 ~ 0	e	4.6
0 ~ 20	e	4.7
20 ~ 40	e	4.9
40 ~ 60	e	5
60 ~ 80	e	5.2
-40 ~ -20	F	5
-20 ~ 0	F	5.1
0 ~ 20	F	5.3
20 ~ 40	F	5.5
40 ~ 60	F	5.7
60 ~ 80	F	5.8
-40 ~ -20	g	5.5
-20 ~ 0	g	5.7
0 ~ 20	g	5.9
20 ~ 40	g	6.1
40 ~ 60	g	6.3
60 ~ 80	g	6.5