BaSF2 - Sumita

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.664462 n_e = 1.668849	V_d = 35.87 V_e = 35.61	n_F - n_C = 0.018520 n_F' - n_C' = 0.018782	Coloring: 0.34 - 0.39 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 2.6939664 C2 = -0.0096825439 C3 = 0.024521643 C4 = 0.0011226808 C5 = -0.000044848426 C6 = 0.0000064258823

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.645869
n _s	1.650073
n _r	1.656051
n _C	1.659038
n _C'	1.659887
n _0.6328	1.660686
n _D	1.664300
n _d	1.664462
n _e	1.668849
n _F	1.677559
n _F'	1.678670
n _g	1.688410
n _h	1.697860
n _i	1.715049
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7110
P_C,A'	0.3185
P_d,C	0.2928
P_e,C	0.5297
P_g,d	1.2930
P_g,F	0.5858
P_h,g	0.5102
P_i,g	1.4383
P_C',t	0.7568
P_e,C'	0.4838
P_F',e	0.5302
P_i,F'	1.9642

transmittance: 10 mm
τ_0.34	0.063
τ_0.35	0.309
τ_0.36	0.566
τ_0.37	0.742
τ_0.38	0.841
τ_0.39	0.901
τ_0.4	0.947
τ_0.42	0.978
τ_0.44	0.988
τ_0.46	0.994
τ_0.48	0.995
τ_0.5	0.997
τ_0.55	0.997
τ_0.6	0.997
τ_0.65	0.998
τ_0.7	0.998
τ_0.8	0.998
τ_1.06	0.997
τ_1.5	0.988
τ₂	0.953

transmittance: 25 mm
τ_0.35	0.053
τ_0.36	0.241
τ_0.37	0.475
τ_0.38	0.649
τ_0.39	0.771
τ_0.4	0.874
τ_0.42	0.947
τ_0.44	0.971
τ_0.46	0.985
τ_0.48	0.989
τ_0.5	0.992
τ_0.55	0.992
τ_0.6	0.992
τ_0.65	0.996
τ_0.7	0.996
τ_0.8	0.996
τ_1.06	0.992
τ_1.5	0.971
τ₂	0.887

Poisson coef.: 0.242
Rigidity: 260 Pa*10⁸
Young module: 646 Pa*10⁸
Knoop hardness: 417
Abrasion: 190

Climatic resistance: 1
Resistance to acids: 3

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
100 ~ 300	86