BaSF6 - Sumita

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

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Main parameters
n_d = 1.667548 n_e = 1.671330	V_d = 41.88 V_e = 41.59	n_F - n_C = 0.015936 n_F' - n_C' = 0.016139	Coloring: 0.34 - 0.39 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 2.713365 C2 = -0.0095447373 C3 = 0.022686918 C4 = 0.00052419627 C5 = 0.000018835522 C6 = 0.0000011090148

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.651100
n _s	1.654910
n _r	1.660217
n _C	1.662835
n _C'	1.663577
n _0.6328	1.664272
n _D	1.667409
n _d	1.667548
n _e	1.671330
n _F	1.678772
n _F'	1.679716
n _g	1.687932
n _h	1.695798
n _i	1.709790
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7364
P_C,A'	0.3257
P_d,C	0.2957
P_e,C	0.5330
P_g,d	1.2790
P_g,F	0.5747
P_h,g	0.4936
P_i,g	1.3715
P_C',t	0.7829
P_e,C'	0.4865
P_F',e	0.5262
P_i,F'	1.8871

transmittance: 10 mm
τ_0.34	0.13
τ_0.35	0.459
τ_0.36	0.697
τ_0.37	0.826
τ_0.38	0.894
τ_0.39	0.933
τ_0.4	0.957
τ_0.42	0.975
τ_0.44	0.985
τ_0.46	0.991
τ_0.48	0.995
τ_0.5	0.995
τ_0.55	0.997
τ_0.6	0.997
τ_0.65	0.997
τ_0.7	0.998
τ_0.8	0.998
τ_1.06	0.998
τ_1.5	0.997
τ₂	0.988

transmittance: 25 mm
τ_0.35	0.142
τ_0.36	0.406
τ_0.37	0.62
τ_0.38	0.756
τ_0.39	0.842
τ_0.4	0.896
τ_0.42	0.94
τ_0.44	0.964
τ_0.46	0.978
τ_0.48	0.989
τ_0.5	0.989
τ_0.55	0.992
τ_0.6	0.992
τ_0.65	0.992
τ_0.7	0.996
τ_0.8	0.996
τ_1.06	0.996
τ_1.5	0.992
τ₂	0.971

Poisson coef.: 0.265
Rigidity: 304 Pa*10⁸
Young module: 769 Pa*10⁸
Knoop hardness: 520
Abrasion: 180

Climatic resistance: 1
Resistance to acids: 3

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