BaSF4 - Sumita

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.651278 n_e = 1.655310	V_d = 38.32 V_e = 38.04	n_F - n_C = 0.016991 n_F' - n_C' = 0.017223	Coloring: 0.33 - 0.39 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 2.6619183 C2 = -0.011237717 C3 = 0.018669163 C4 = 0.0022766748 C5 = -0.00022823234 C6 = 0.000014897896

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.634160
n _s	1.638061
n _r	1.643548
n _C	1.646291
n _C'	1.647071
n _0.6328	1.647805
n _D	1.651129
n _d	1.651278
n _e	1.655310
n _F	1.663282
n _F'	1.664294
n _g	1.673113
n _h	1.681588
n _i	1.696930
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7139
P_C,A'	0.3187
P_d,C	0.2935
P_e,C	0.5308
P_g,d	1.2850
P_g,F	0.5785
P_h,g	0.4987
P_i,g	1.4016
P_C',t	0.7598
P_e,C'	0.4849
P_F',e	0.5287
P_i,F'	1.9206

transmittance: 10 mm
τ_0.33	0.037
τ_0.34	0.324
τ_0.35	0.588
τ_0.36	0.729
τ_0.37	0.812
τ_0.38	0.867
τ_0.39	0.907
τ_0.4	0.936
τ_0.42	0.967
τ_0.44	0.981
τ_0.46	0.985
τ_0.48	0.988
τ_0.5	0.99
τ_0.55	0.994
τ_0.6	0.995
τ_0.65	0.997
τ_0.7	0.997
τ_0.8	0.998
τ_1.06	0.998
τ_1.5	0.997
τ₂	0.96

transmittance: 25 mm
τ_0.34	0.06
τ_0.35	0.265
τ_0.36	0.454
τ_0.37	0.595
τ_0.38	0.7
τ_0.39	0.783
τ_0.4	0.848
τ_0.42	0.92
τ_0.44	0.954
τ_0.46	0.964
τ_0.48	0.971
τ_0.5	0.975
τ_0.55	0.985
τ_0.6	0.989
τ_0.65	0.992
τ_0.7	0.992
τ_0.8	0.996
τ_1.06	0.996
τ_1.5	0.992
τ₂	0.903

Poisson coef.: 0.256
Rigidity: 258 Pa*10⁸
Young module: 648 Pa*10⁸
Knoop hardness: 407
Abrasion: 210

Climatic resistance: 1
Resistance to acids: 2

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