S-LAH63 - O'Hara

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.804397 n_e = 1.809220	V_d = 39.58 V_e = 39.33	n_F - n_C = 0.020320 n_F' - n_C' = 0.020572	Coloring: 0.34 - 0.41 mkm.

Type: Sellmeier
Spectral range: 0.3650146 - 2.325 mkm.
C1 = 1.89458276 C2 = 0.268702978 C3 = 1.45705526 C4 = 0.0102277048 C5 = 0.0442801243 C6 = 104.874927

Refraction index
n _2.3254	-----
n _1.9701	1.765048
n _1.5296	1.773003
n _1.06	1.782115
n _t	1.783252
n _s	1.788196
n _r	1.795022
n _C	1.798375
n _C'	1.799323
n _0.6328	1.800213
n _D	1.804219
n _d	1.804397
n _e	1.809220
n _F	1.818695
n _F'	1.819895
n _g	1.830337
n _h	1.840332
n _i	1.858148
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7442
P_C,A'	0.3276
P_d,C	0.2963
P_e,C	0.5337
P_g,d	1.2765
P_g,F	0.5729
P_h,g	0.4918
P_i,g	1.3686
P_C',t	0.7908
P_e,C'	0.4870
P_F',e	0.5253
P_i,F'	1.8824

transmittance: 10 mm
τ_0.34	0.06
τ_0.35	0.31
τ_0.36	0.59
τ_0.37	0.76
τ_0.38	0.86
τ_0.39	0.909
τ_0.4	0.937
τ_0.42	0.965
τ_0.44	0.976
τ_0.46	0.983
τ_0.48	0.988
τ_0.5	0.992
τ_0.55	0.997
τ_0.6	0.998
τ_0.65	0.998
τ_0.7	0.998
τ_0.8	0.999
τ_0.9	0.998
τ₁	0.997
τ_1.2	0.997
τ_1.4	0.993
τ_1.6	0.992
τ_1.8	0.984
τ₂	0.963
τ_2.2	0.89
τ_2.4	0.7

Poisson coef.: 0.295
Rigidity: 433 Pa*10⁸
Young module: 1121 Pa*10⁸
Knoop hardness: 640
Abrasion: 82

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	58
100 ~ 300	70

Temperature coefs. of n_rel
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20	t	5.5
-20 ~ 0	t	5.7
0 ~ 20	t	5.8
20 ~ 40	t	5.9
40 ~ 60	t	6.2
60 ~ 80	t	6.4
-40 ~ -20	C'	6.6
-20 ~ 0	C'	6.7
0 ~ 20	C'	6.8
20 ~ 40	C'	6.9
40 ~ 60	C'	7.1
60 ~ 80	C'	7.3
-40 ~ -20		6.6
-20 ~ 0		6.7
0 ~ 20		6.8
20 ~ 40		6.9
40 ~ 60		7.2
60 ~ 80		7.4
-40 ~ -20	D	6.8
-20 ~ 0	D	6.9
0 ~ 20	D	7
20 ~ 40	D	7.2
40 ~ 60	D	7.5
60 ~ 80	D	7.7
-40 ~ -20	e	7.3
-20 ~ 0	e	7.3
0 ~ 20	e	7.5
20 ~ 40	e	7.6
40 ~ 60	e	7.8
60 ~ 80	e	8.1
-40 ~ -20	F	8
-20 ~ 0	F	8.1
0 ~ 20	F	8.3
20 ~ 40	F	8.5
40 ~ 60	F	8.8
60 ~ 80	F	9.1
-40 ~ -20	g	8.7
-20 ~ 0	g	8.9
0 ~ 20	g	9.1
20 ~ 40	g	9.4
40 ~ 60	g	9.7
60 ~ 80	g	10.1