LaSFn22 - Sumita

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.897993 n_e = 1.904248	V_d = 34.01 V_e = 33.77	n_F - n_C = 0.026400 n_F' - n_C' = 0.026770	Coloring: 0.37 - 0.50 mkm.

Type: Schott
Spectral range: 0.4046561 - 1.01398 mkm.
C1 = 3.4810353 C2 = -0.01719796 C3 = 0.037737318 C4 = 0.002513112 C5 = -0.00017521863 C6 = 0.000016219463

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.871440
n _s	1.877468
n _r	1.885998
n _C	1.890257
n _C'	1.891468
n _0.6328	1.892607
n _D	1.897762
n _d	1.897993
n _e	1.904248
n _F	1.916657
n _F'	1.918239
n _g	1.932092
n _h	1.945523
n _i	-----
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7127
P_C,A'	0.3187
P_d,C	0.2930
P_e,C	0.5299
P_g,d	1.2916
P_g,F	0.5846
P_h,g	0.5087
P_i,g	-----
P_C',t	0.7586
P_e,C'	0.4840
P_F',e	0.5299
P_i,F'	-----

transmittance: 10 mm
τ_0.37	0.093
τ_0.38	0.319
τ_0.39	0.54
τ_0.4	0.701
τ_0.42	0.846
τ_0.44	0.901
τ_0.46	0.926
τ_0.48	0.947
τ_0.5	0.957
τ_0.55	0.974
τ_0.6	0.982
τ_0.65	0.985
τ_0.7	0.99
τ_0.8	0.997
τ_1.06	0.998
τ_1.5	0.998
τ₂	0.974

transmittance: 25 mm
τ_0.38	0.057
τ_0.39	0.214
τ_0.4	0.411
τ_0.42	0.659
τ_0.44	0.771
τ_0.46	0.826
τ_0.48	0.874
τ_0.5	0.896
τ_0.55	0.937
τ_0.6	0.957
τ_0.65	0.964
τ_0.7	0.975
τ_0.8	0.992
τ_1.06	0.996
τ_1.5	0.996
τ₂	0.937

Poisson coef.: 0.294
Rigidity: 468 Pa*10⁸
Young module: 1212 Pa*10⁸
Knoop hardness: 705
Abrasion: 80

Climatic resistance: 1
Resistance to acids: 1

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
100 ~ 300	76