BaSF10 - Sumita

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

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Main parameters
n_d = 1.650159 n_e = 1.654081	V_d = 39.30 V_e = 39.02	n_F - n_C = 0.016539 n_F' - n_C' = 0.016760	Coloring: 0.33 - 0.38 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 2.6577046 C2 = -0.01106324 C3 = 0.020536681 C4 = 0.00135088 C5 = -0.000090400035 C6 = 0.0000073492798

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.633249
n _s	1.637164
n _r	1.642600
n _C	1.645292
n _C'	1.646056
n _0.6328	1.646773
n _D	1.650014
n _d	1.650159
n _e	1.654081
n _F	1.661831
n _F'	1.662816
n _g	1.671410
n _h	1.679679
n _i	1.694569
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7281
P_C,A'	0.3222
P_d,C	0.2942
P_e,C	0.5314
P_g,d	1.2848
P_g,F	0.5791
P_h,g	0.4999
P_i,g	1.4002
P_C',t	0.7742
P_e,C'	0.4852
P_F',e	0.5281
P_i,F'	1.9198

transmittance: 10 mm
τ_0.33	0.022
τ_0.34	0.279
τ_0.35	0.619
τ_0.36	0.783
τ_0.37	0.867
τ_0.38	0.911
τ_0.39	0.939
τ_0.4	0.957
τ_0.42	0.975
τ_0.44	0.982
τ_0.46	0.988
τ_0.48	0.988
τ_0.5	0.992
τ_0.55	0.995
τ_0.6	0.995
τ_0.65	0.995
τ_0.7	0.997
τ_0.8	0.998
τ_1.06	0.998
τ_1.5	0.998
τ₂	0.985

transmittance: 25 mm
τ_0.34	0.041
τ_0.35	0.301
τ_0.36	0.543
τ_0.37	0.7
τ_0.38	0.792
τ_0.39	0.854
τ_0.4	0.896
τ_0.42	0.94
τ_0.44	0.957
τ_0.46	0.971
τ_0.48	0.971
τ_0.5	0.982
τ_0.55	0.989
τ_0.6	0.989
τ_0.65	0.989
τ_0.7	0.992
τ_0.8	0.996
τ_1.06	0.996
τ_1.5	0.996
τ₂	0.964

Poisson coef.: 0.25
Rigidity: 260 Pa*10⁸
Young module: 650 Pa*10⁸
Knoop hardness: 539
Abrasion: 180

Climatic resistance: 1
Resistance to acids: 2

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