E-BASF8 - Hikari

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.723420 n_e = 1.727935	V_d = 37.95 V_e = 37.67	n_F - n_C = 0.019062 n_F' - n_C' = 0.019321	Coloring: 0.394 - 0.360 mkm.

Type: Schott
Spectral range: 0.4046561 - 0.76819 mkm.
C1 = 2.88848579 C2 = -0.0117260382 C3 = 0.0269121453 C4 = 0.000931846805 C5 = -0.0000177180132 C6 = 0.00000563107499

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	-----
n _s	-----
n _r	1.714711
n _C	1.717814
n _C'	1.718694
n _0.6328	1.719520
n _D	1.723253
n _d	1.723420
n _e	1.727935
n _F	1.736876
n _F'	1.738016
n _g	1.747999
n _h	1.757688
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'	0.3224
P_d,C	0.2940
P_e,C	0.5309
P_g,d	1.2894
P_g,F	0.5835
P_h,g	0.5082
P_i,g	-----
P_C',t	-----
P_e,C'	0.4848
P_F',e	0.5288
P_i,F'	-----

transmittance: 10 mm
τ_0.36	0.11
τ_0.37	0.37
τ_0.38	0.62
τ_0.39	0.77
τ_0.4	0.87
τ_0.42	0.949
τ_0.44	0.976
τ_0.46	0.987
τ_0.48	0.995
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	0.999
τ₂	0.988
τ_2.2	0.961
τ_2.4	0.88

Knoop hardness: 511
Abrasion: 150

Resistance to acids: 3

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