BaSF3 - Sumita

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.607171 n_e = 1.610750	V_d = 40.24 V_e = 39.96	n_F - n_C = 0.015088 n_F' - n_C' = 0.015283	Coloring: 0.32 - 0.36 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 2.5200247 C2 = -0.0074588605 C3 = 0.02146852 C4 = 0.0002819514 C5 = 0.00004046225 C6 = 0.0000002021043

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.591709
n _s	1.595248
n _r	1.600240
n _C	1.602713
n _C'	1.603414
n _0.6328	1.604072
n _D	1.607038
n _d	1.607171
n _e	1.610750
n _F	1.617802
n _F'	1.618697
n _g	1.626499
n _h	1.633990
n _i	1.647359
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7292
P_C,A'	0.3246
P_d,C	0.2954
P_e,C	0.5326
P_g,d	1.2810
P_g,F	0.5764
P_h,g	0.4964
P_i,g	1.3824
P_C',t	0.7757
P_e,C'	0.4862
P_F',e	0.5266
P_i,F'	1.8996

transmittance: 10 mm
τ_0.32	0.032
τ_0.33	0.251
τ_0.34	0.615
τ_0.35	0.819
τ_0.36	0.904
τ_0.37	0.948
τ_0.38	0.964
τ_0.39	0.978
τ_0.4	0.985
τ_0.42	0.99
τ_0.44	0.99
τ_0.46	0.991
τ_0.48	0.994
τ_0.5	0.995
τ_0.55	0.995
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	0.998
τ₂	0.961

transmittance: 25 mm
τ_0.33	0.031
τ_0.34	0.297
τ_0.35	0.608
τ_0.36	0.777
τ_0.37	0.877
τ_0.38	0.913
τ_0.39	0.947
τ_0.4	0.964
τ_0.42	0.975
τ_0.44	0.975
τ_0.46	0.978
τ_0.48	0.985
τ_0.5	0.989
τ_0.55	0.989
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	0.996
τ₂	0.906

Poisson coef.: 0.232
Rigidity: 253 Pa*10⁸
Young module: 623 Pa*10⁸
Knoop hardness: 430
Abrasion: 160

Climatic resistance: 1
Resistance to acids: 1

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
100 ~ 300	90