E-LAF04 - Hikari

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.756998 n_e = 1.760763	V_d = 47.82 V_e = 47.58	n_F - n_C = 0.015827 n_F' - n_C' = 0.015987	Coloring: 0.368 - 0.332 mkm.

Type: Schott
Spectral range: 0.4046561 - 0.76819 mkm.
C1 = 3.01654365 C2 = -0.0142462083 C3 = 0.0251223164 C4 = 0.000195992997 C5 = 0.0000435063641 C6 = -0.000000785606637

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	-----
n _s	-----
n _r	1.749538
n _C	1.752231
n _C'	1.752987
n _0.6328	1.753694
n _D	1.756857
n _d	1.756998
n _e	1.760763
n _F	1.768059
n _F'	1.768975
n _g	1.776870
n _h	1.784309
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'	0.3401
P_d,C	0.3011
P_e,C	0.5390
P_g,d	1.2555
P_g,F	0.5566
P_h,g	0.4699
P_i,g	-----
P_C',t	-----
P_e,C'	0.4912
P_F',e	0.5188
P_i,F'	-----

transmittance: 10 mm
τ_0.33	0.01
τ_0.34	0.17
τ_0.35	0.44
τ_0.36	0.66
τ_0.37	0.79
τ_0.38	0.87
τ_0.39	0.913
τ_0.4	0.939
τ_0.42	0.961
τ_0.44	0.971
τ_0.46	0.978
τ_0.48	0.984
τ_0.5	0.988
τ_0.55	0.992
τ_0.6	0.992
τ_0.65	0.993
τ_0.7	0.995
τ_0.8	0.999
τ_0.9	0.999
τ₁	0.999
τ_1.2	0.999
τ_1.4	0.988
τ_1.6	0.993
τ_1.8	0.982
τ₂	0.957
τ_2.2	0.88
τ_2.4	0.63

Knoop hardness: 645
Abrasion: 76

Resistance to acids: 4

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
100 ~ 300	69