BaFn3 - Sumita

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.664225 n_e = 1.667438	V_d = 49.18 V_e = 48.88	n_F - n_C = 0.013505 n_F' - n_C' = 0.013652	Coloring: 0.34 - 0.38 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 2.711454 C2 = -0.009115601 C3 = 0.020237189 C4 = 0.00027232007 C5 = 0.000016183798 C6 = 0.0000006032729

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.649859
n _s	1.653259
n _r	1.657913
n _C	1.660181
n _C'	1.660820
n _0.6328	1.661419
n _D	1.664106
n _d	1.664225
n _e	1.667438
n _F	1.673686
n _F'	1.674472
n _g	1.681259
n _h	1.687670
n _i	1.698889
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7642
P_C,A'	0.3342
P_d,C	0.2994
P_e,C	0.5373
P_g,d	1.2612
P_g,F	0.5607
P_h,g	0.4747
P_i,g	1.3054
P_C',t	0.8116
P_e,C'	0.4899
P_F',e	0.5208
P_i,F'	1.8079

transmittance: 10 mm
τ_0.34	0.05
τ_0.35	0.251
τ_0.36	0.57
τ_0.37	0.772
τ_0.38	0.878
τ_0.39	0.929
τ_0.4	0.953
τ_0.42	0.971
τ_0.44	0.978
τ_0.46	0.982
τ_0.48	0.985
τ_0.5	0.985
τ_0.55	0.988
τ_0.6	0.99
τ_0.65	0.991
τ_0.7	0.995
τ_0.8	0.998
τ_1.06	0.997
τ_1.5	0.991
τ₂	0.963

transmittance: 25 mm
τ_0.35	0.031
τ_0.36	0.245
τ_0.37	0.525
τ_0.38	0.722
τ_0.39	0.832
τ_0.4	0.887
τ_0.42	0.93
τ_0.44	0.947
τ_0.46	0.957
τ_0.48	0.964
τ_0.5	0.964
τ_0.55	0.971
τ_0.6	0.975
τ_0.65	0.978
τ_0.7	0.989
τ_0.8	0.996
τ_1.06	0.992
τ_1.5	0.978
τ₂	0.91

Poisson coef.: 0.263
Rigidity: 323 Pa*10⁸
Young module: 816 Pa*10⁸
Knoop hardness: 513
Abrasion: 180

Climatic resistance: 1
Resistance to acids: 4

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
100 ~ 300	85