BaFn1 - Sumita

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.682501 n_e = 1.686147	V_d = 44.49 V_e = 44.19	n_F - n_C = 0.015340 n_F' - n_C' = 0.015525	Coloring: 0.34 - 0.38 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 2.7675172 C2 = -0.010367421 C3 = 0.020151257 C4 = 0.0012573013 C5 = -0.00010596132 C6 = 0.0000075020291

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.666600
n _s	1.670292
n _r	1.675418
n _C	1.677948
n _C'	1.678664
n _0.6328	1.679336
n _D	1.682366
n _d	1.682501
n _e	1.686147
n _F	1.693288
n _F'	1.694189
n _g	1.701993
n _h	1.709408
n _i	1.722560
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7397
P_C,A'	0.3269
P_d,C	0.2968
P_e,C	0.5345
P_g,d	1.2706
P_g,F	0.5674
P_h,g	0.4833
P_i,g	1.3406
P_C',t	0.7864
P_e,C'	0.4878
P_F',e	0.5242
P_i,F'	1.8494

transmittance: 10 mm
τ_0.33	0.01
τ_0.34	0.196
τ_0.35	0.54
τ_0.36	0.772
τ_0.37	0.883
τ_0.38	0.936
τ_0.39	0.961
τ_0.4	0.975
τ_0.42	0.985
τ_0.44	0.988
τ_0.46	0.991
τ_0.48	0.995
τ_0.5	0.995
τ_0.55	0.997
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	0.985

transmittance: 25 mm
τ_0.34	0.017
τ_0.35	0.214
τ_0.36	0.525
τ_0.37	0.733
τ_0.38	0.848
τ_0.39	0.906
τ_0.4	0.94
τ_0.42	0.964
τ_0.44	0.971
τ_0.46	0.978
τ_0.48	0.989
τ_0.5	0.989
τ_0.55	0.992
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	0.964

Poisson coef.: 0.281
Rigidity: 317 Pa*10⁸
Young module: 812 Pa*10⁸
Knoop hardness: 465
Abrasion: 190

Climatic resistance: 1
Resistance to acids: 4

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