E-LAF2 - Hikari

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.743997 n_e = 1.747945	V_d = 44.78 V_e = 44.50	n_F - n_C = 0.016612 n_F' - n_C' = 0.016805	Coloring: 0.372 - 0.340 mkm.

Type: Schott
Spectral range: 0.4046561 - 0.76819 mkm.
C1 = 2.9684827 C2 = -0.0116032701 C3 = 0.0244833672 C4 = 0.000775976856 C5 = -0.0000244342622 C6 = 0.00000301832049

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	-----
n _s	-----
n _r	1.736290
n _C	1.739050
n _C'	1.739830
n _0.6328	1.740561
n _D	1.743850
n _d	1.743997
n _e	1.747945
n _F	1.755662
n _F'	1.756635
n _g	1.765058
n _h	1.773041
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'	0.3300
P_d,C	0.2977
P_e,C	0.5354
P_g,d	1.2678
P_g,F	0.5655
P_h,g	0.4805
P_i,g	-----
P_C',t	-----
P_e,C'	0.4885
P_F',e	0.5231
P_i,F'	-----

transmittance: 10 mm
τ_0.34	0.04
τ_0.35	0.28
τ_0.36	0.59
τ_0.37	0.78
τ_0.38	0.88
τ_0.39	0.937
τ_0.4	0.966
τ_0.42	0.991
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	0.991
τ₂	0.971
τ_2.2	0.9
τ_2.4	0.72

Knoop hardness: 607
Abrasion: 118

Resistance to acids: 4

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
100 ~ 300	76