K-LaSFn1 - Sumita

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.806003 n_e = 1.810690	V_d = 40.85 V_e = 40.61	n_F - n_C = 0.019726 n_F' - n_C' = 0.019962	Coloring: 0.33 - 0.40 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 3.170202695823 C2 = -0.01238252190524 C3 = 0.03073323632998 C4 = 0.0008076526682999 C5 = -0.00001429715666745 C6 = 0.00000380649171916

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.785530
n _s	1.790264
n _r	1.796880
n _C	1.800142
n _C'	1.801065
n _0.6328	1.801931
n _D	1.805829
n _d	1.806003
n _e	1.810690
n _F	1.819868
n _F'	1.821028
n _g	1.831083
n _h	1.840658
n _i	1.857620
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7407
P_C,A'	0.3280
P_d,C	0.2971
P_e,C	0.5347
P_g,d	1.2714
P_g,F	0.5685
P_h,g	0.4853
P_i,g	1.3452
P_C',t	0.7875
P_e,C'	0.4879
P_F',e	0.5240
P_i,F'	1.8550

transmittance: 10 mm
τ_0.31	0.002
τ_0.32	0.017
τ_0.33	0.165
τ_0.34	0.413
τ_0.35	0.616
τ_0.36	0.754
τ_0.37	0.843
τ_0.38	0.898
τ_0.39	0.932
τ_0.4	0.952
τ_0.42	0.972
τ_0.44	0.979
τ_0.46	0.985
τ_0.48	0.991
τ_0.5	0.994
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_1.06	0.998
τ_1.5	0.998
τ₂	0.985

transmittance: 25 mm
τ_0.33	0.011
τ_0.34	0.11
τ_0.35	0.298
τ_0.36	0.494
τ_0.37	0.653
τ_0.38	0.765
τ_0.39	0.839
τ_0.4	0.885
τ_0.42	0.931
τ_0.44	0.95
τ_0.46	0.965
τ_0.48	0.979
τ_0.5	0.987
τ_0.55	0.996
τ_0.6	0.996
τ_0.65	0.996
τ_0.7	0.996
τ_0.8	0.996
τ_1.06	0.996
τ_1.5	0.996
τ₂	0.964

Poisson coef.: 0.284
Rigidity: 438 Pa*10⁸
Young module: 1125 Pa*10⁸
Knoop hardness: 599
Abrasion: 63

Climatic resistance: 1
Resistance to acids: 3

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
100 ~ 300	80