E-BASF2 - Hikari

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.664460 n_e = 1.668846	V_d = 35.91 V_e = 35.64	n_F - n_C = 0.018501 n_F' - n_C' = 0.018762	Coloring: 0.389 - 0.353 mkm.

Type: Schott
Spectral range: 0.4046561 - 0.76819 mkm.
C1 = 2.67701358 C2 = 0.00301170374 C3 = 0.033120376 C4 = -0.000925663558 C5 = 0.000180536382 C6 = -0.00000262215298

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	-----
n _s	-----
n _r	1.656068
n _C	1.659037
n _C'	1.659884
n _0.6328	1.660682
n _D	1.664298
n _d	1.664460
n _e	1.668846
n _F	1.677538
n _F'	1.678647
n _g	1.688378
n _h	1.697858
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'	0.3147
P_d,C	0.2931
P_e,C	0.5301
P_g,d	1.2927
P_g,F	0.5858
P_h,g	0.5123
P_i,g	-----
P_C',t	-----
P_e,C'	0.4843
P_F',e	0.5297
P_i,F'	-----

transmittance: 10 mm
τ_0.36	0.05
τ_0.37	0.34
τ_0.38	0.64
τ_0.39	0.81
τ_0.4	0.89
τ_0.42	0.961
τ_0.44	0.98
τ_0.46	0.988
τ_0.48	0.992
τ_0.5	0.996
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	0.988
τ₂	0.98
τ_2.2	0.944
τ_2.4	0.906

Knoop hardness: 503
Abrasion: 175

Resistance to acids: 1

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
100 ~ 300	103