SF6W - Sumita

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.805180 n_e = 1.812643	V_d = 25.45 V_e = 25.26	n_F - n_C = 0.031630 n_F' - n_C' = 0.032170	Coloring: 0.36 - 0.41 mkm.

Type: Schott
Spectral range: 0.4046561 - 1.01398 mkm.
C1 = 3.1199659 C2 = -0.011028053 C3 = 0.041053407 C4 = 0.0032448937 C5 = -0.00022709465 C6 = 0.00002689301

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.775229
n _s	1.781616
n _r	1.791182
n _C	1.796097
n _C'	1.797507
n _0.6328	1.798837
n _D	1.804906
n _d	1.805180
n _e	1.812643
n _F	1.827728
n _F'	1.829677
n _g	1.847011
n _h	1.864289
n _i	-----
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.6597
P_C,A'	0.3045
P_d,C	0.2871
P_e,C	0.5230
P_g,d	1.3224
P_g,F	0.6096
P_h,g	0.5462
P_i,g	-----
P_C',t	0.7043
P_e,C'	0.4785
P_F',e	0.5385
P_i,F'	-----

transmittance: 10 mm
τ_0.36	0.114
τ_0.37	0.482
τ_0.38	0.733
τ_0.39	0.857
τ_0.4	0.915
τ_0.42	0.96
τ_0.44	0.975
τ_0.46	0.982
τ_0.48	0.985
τ_0.5	0.99
τ_0.55	0.994
τ_0.6	0.995
τ_0.65	0.995
τ_0.7	0.997
τ_0.8	0.998
τ_1.06	0.992
τ_1.5	0.985
τ₂	0.97

transmittance: 25 mm
τ_0.37	0.161
τ_0.38	0.46
τ_0.39	0.68
τ_0.4	0.801
τ_0.42	0.903
τ_0.44	0.94
τ_0.46	0.957
τ_0.48	0.97
τ_0.5	0.975
τ_0.55	0.985
τ_0.6	0.989
τ_0.65	0.989
τ_0.7	0.992
τ_0.8	0.996
τ_1.06	0.979
τ_1.5	0.964
τ₂	0.93

Poisson coef.: 0.247
Rigidity: 213 Pa*10⁸
Young module: 531 Pa*10⁸
Knoop hardness: 349
Abrasion: 220

Climatic resistance: 1
Resistance to acids: 3

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
100 ~ 300	88