LF6 - Sumita

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.567323 n_e = 1.570469	V_d = 42.81 V_e = 42.53	n_F - n_C = 0.013251 n_F' - n_C' = 0.013411	Coloring: 0.31 - 0.34 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 2.4047907 C2 = -0.0087988392 C3 = 0.01737067 C4 = 0.00054422581 C5 = -0.000012510046 C6 = 0.0000024310864

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.553429
n _s	1.556706
n _r	1.561192
n _C	1.563387
n _C'	1.564007
n _0.6328	1.564589
n _D	1.567206
n _d	1.567323
n _e	1.570469
n _F	1.576639
n _F'	1.577419
n _g	1.584200
n _h	1.590679
n _i	1.602210
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7514
P_C,A'	0.3292
P_d,C	0.2970
P_e,C	0.5344
P_g,d	1.2736
P_g,F	0.5706
P_h,g	0.4889
P_i,g	1.3590
P_C',t	0.7982
P_e,C'	0.4876
P_F',e	0.5244
P_i,F'	1.8707

transmittance: 10 mm
τ_0.31	0.013
τ_0.32	0.334
τ_0.33	0.74
τ_0.34	0.909
τ_0.35	0.957
τ_0.36	0.981
τ_0.37	0.99
τ_0.38	0.99
τ_0.39	0.995
τ_0.4	0.997
τ_0.42	0.997
τ_0.44	0.997
τ_0.46	0.997
τ_0.48	0.997
τ_0.5	0.997
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	0.997
τ_1.5	0.994
τ₂	0.937

transmittance: 25 mm
τ_0.32	0.064
τ_0.33	0.471
τ_0.34	0.789
τ_0.35	0.896
τ_0.36	0.954
τ_0.37	0.975
τ_0.38	0.975
τ_0.39	0.989
τ_0.4	0.992
τ_0.42	0.992
τ_0.44	0.992
τ_0.46	0.992
τ_0.48	0.992
τ_0.5	0.992
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	0.992
τ_1.5	0.985
τ₂	0.851

Poisson coef.: 0.209
Rigidity: 248 Pa*10⁸
Young module: 600 Pa*10⁸
Knoop hardness: 456
Abrasion: 140

Climatic resistance: 1
Resistance to acids: 1

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
100 ~ 300	91