E-BASF7 - Hikari

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.701540 n_e = 1.705586	V_d = 41.16 V_e = 40.88	n_F - n_C = 0.017041 n_F' - n_C' = 0.017256	Coloring: 0.388 - 0.356 mkm.

Type: Schott
Spectral range: 0.4046561 - 0.76819 mkm.
C1 = 2.83515039 C2 = -0.0178508143 C3 = 0.0153978598 C4 = 0.00371905515 C5 = -0.000488482182 C6 = 0.0000329017911

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	-----
n _s	-----
n _r	1.693698
n _C	1.696497
n _C'	1.697290
n _0.6328	1.698034
n _D	1.701390
n _d	1.701540
n _e	1.705586
n _F	1.713539
n _F'	1.714546
n _g	1.723338
n _h	1.731898
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'	0.3260
P_d,C	0.2958
P_e,C	0.5333
P_g,d	1.2791
P_g,F	0.5750
P_h,g	0.5023
P_i,g	-----
P_C',t	-----
P_e,C'	0.4868
P_F',e	0.5257
P_i,F'	-----

transmittance: 10 mm
τ_0.35	0.03
τ_0.36	0.23
τ_0.37	0.51
τ_0.38	0.71
τ_0.39	0.83
τ_0.4	0.902
τ_0.42	0.964
τ_0.44	0.984
τ_0.46	0.993
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	0.997
τ_1.6	0.999
τ_1.8	0.992
τ₂	0.988
τ_2.2	0.962
τ_2.4	0.88

Knoop hardness: 517
Abrasion: 148

Resistance to acids: 3

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
100 ~ 300	83