S-LAH75 - O'Hara

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.873996 n_e = 1.879870	V_d = 35.25 V_e = 35.01	n_F - n_C = 0.024788 n_F' - n_C' = 0.025127	Coloring: 0.35 - 0.46 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 3.3972115 C2 = -0.015825501 C3 = 0.036818916 C4 = 0.0017596445 C5 = -0.000084041673 C6 = 0.000010522807

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.848877
n _s	1.854611
n _r	1.862693
n _C	1.866714
n _C'	1.867856
n _0.6328	1.868929
n _D	1.873779
n _d	1.873996
n _e	1.879870
n _F	1.891502
n _F'	1.892984
n _g	1.905945
n _h	1.918487
n _i	1.941244
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7195
P_C,A'	0.3208
P_d,C	0.2937
P_e,C	0.5307
P_g,d	1.2888
P_g,F	0.5826
P_h,g	0.5059
P_i,g	1.4240
P_C',t	0.7656
P_e,C'	0.4846
P_F',e	0.5290
P_i,F'	1.9469

transmittance: 10 mm
τ_0.42	0.934
τ_0.44	0.956
τ_0.46	0.971
τ_0.48	0.98
τ_0.5	0.986
τ_0.55	0.994
τ_0.6	0.995
τ_0.65	0.995
τ_0.7	0.996

Poisson coef.: 0.3
Rigidity: 466 Pa*10⁸
Young module: 213 Pa*10⁸
Knoop hardness: 630
Abrasion: 66

Climatic resistance: 2
Resistance to acids: 2.2
Phosphate resistance: 1

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
-30 ~ 70	62
100 ~ 300	75