E-BAF4 - Hikari

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.605620 n_e = 1.608906	V_d = 43.76 V_e = 43.46	n_F - n_C = 0.013837 n_F' - n_C' = 0.014007	Coloring: 0.375 - 0.348 mkm.

Type: Schott
Spectral range: 0.4046561 - 0.76819 mkm.
C1 = 2.50495857 C2 = 0.00332474118 C3 = 0.0283142796 C4 = -0.00204413784 C5 = 0.000334309924 C6 = -0.0000153485779

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	-----
n _s	-----
n _r	1.599242
n _C	1.601514
n _C'	1.602160
n _0.6328	1.602766
n _D	1.605498
n _d	1.605620
n _e	1.608906
n _F	1.615352
n _F'	1.616168
n _g	1.623263
n _h	1.630023
n _i	-----
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	-----
P_C,A'	0.3235
P_d,C	0.2966
P_e,C	0.5341
P_g,d	1.2751
P_g,F	0.5717
P_h,g	0.4884
P_i,g	-----
P_C',t	-----
P_e,C'	0.4875
P_F',e	0.5248
P_i,F'	-----

transmittance: 10 mm
τ_0.35	0.02
τ_0.36	0.33
τ_0.37	0.7
τ_0.38	0.88
τ_0.39	0.956
τ_0.4	0.989
τ_0.42	0.999
τ_0.44	0.999
τ_0.46	0.999
τ_0.48	0.999
τ_0.5	0.999
τ_0.55	0.999
τ_0.6	0.999
τ_0.65	0.999
τ_0.7	0.999
τ_0.8	0.999
τ_0.9	0.999
τ₁	0.999
τ_1.2	0.999
τ_1.4	0.999
τ_1.6	0.999
τ_1.8	0.998
τ₂	0.99
τ_2.2	0.925
τ_2.4	0.9

Knoop hardness: 482
Abrasion: 108

Resistance to acids: 1

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
100 ~ 300	75