K-LaSFn9 - Sumita

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.816006 n_e = 1.820168	V_d = 46.67 V_e = 46.42	n_F - n_C = 0.017484 n_F' - n_C' = 0.017666	Coloring: 0.32 - 0.40 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 3.2166408 C2 = -0.013939421 C3 = 0.02808926 C4 = 0.00054031151 C5 = 0.0000032097031 C6 = 0.0000010680734

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.797260
n _s	1.801733
n _r	1.807807
n _C	1.810756
n _C'	1.811587
n _0.6328	1.812364
n _D	1.815851
n _d	1.816006
n _e	1.820168
n _F	1.828241
n _F'	1.829253
n _g	1.837969
n _h	1.846149
n _i	1.860320
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7719
P_C,A'	0.3361
P_d,C	0.3002
P_e,C	0.5383
P_g,d	1.2561
P_g,F	0.5564
P_h,g	0.4678
P_i,g	1.2783
P_C',t	0.8194
P_e,C'	0.4908
P_F',e	0.5196
P_i,F'	1.7768

transmittance: 10 mm
τ_0.31	0.013
τ_0.32	0.111
τ_0.33	0.241
τ_0.34	0.405
τ_0.35	0.576
τ_0.36	0.714
τ_0.37	0.819
τ_0.38	0.883
τ_0.39	0.923
τ_0.4	0.947
τ_0.42	0.968
τ_0.44	0.977
τ_0.46	0.981
τ_0.48	0.982
τ_0.5	0.985
τ_0.55	0.988
τ_0.6	0.991
τ_0.65	0.995
τ_0.7	0.997
τ_0.8	0.998
τ_1.06	0.99
τ_1.5	0.99
τ₂	0.961

transmittance: 25 mm
τ_0.33	0.028
τ_0.34	0.104
τ_0.35	0.252
τ_0.36	0.43
τ_0.37	0.608
τ_0.38	0.733
τ_0.39	0.82
τ_0.4	0.874
τ_0.42	0.923
τ_0.44	0.944
τ_0.46	0.954
τ_0.48	0.957
τ_0.5	0.964
τ_0.55	0.971
τ_0.6	0.978
τ_0.65	0.989
τ_0.7	0.992
τ_0.8	0.996
τ_1.06	0.971
τ_1.5	0.971
τ₂	0.906

Poisson coef.: 0.298
Rigidity: 477 Pa*10⁸
Young module: 1238 Pa*10⁸
Knoop hardness: 769
Abrasion: 50

Climatic resistance: 1
Resistance to acids: 3

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