E-F5 - Hikari

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.603420 n_e = 1.607180	V_d = 38.01 V_e = 37.74	n_F - n_C = 0.015874 n_F' - n_C' = 0.016087	Coloring: 0.378 - 0.357 mkm.

Type: Schott
Spectral range: 0.4046561 - 0.76819 mkm.
C1 = 2.50863619 C2 = -0.0101869365 C3 = 0.0204516474 C4 = 0.000841069518 C5 = -0.0000363565381 C6 = 0.00000599712664

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	-----
n _s	-----
n _r	1.596152
n _C	1.598745
n _C'	1.599480
n _0.6328	1.600169
n _D	1.603281
n _d	1.603420
n _e	1.607180
n _F	1.614619
n _F'	1.615567
n _g	1.623878
n _h	1.631960
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'	0.3239
P_d,C	0.2944
P_e,C	0.5313
P_g,d	1.2887
P_g,F	0.5832
P_h,g	0.5091
P_i,g	-----
P_C',t	-----
P_e,C'	0.4850
P_F',e	0.5283
P_i,F'	-----

transmittance: 10 mm
τ_0.36	0.13
τ_0.37	0.53
τ_0.38	0.8
τ_0.39	0.914
τ_0.4	0.965
τ_0.42	0.994
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	0.998
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	0.985
τ₂	0.972
τ_2.2	0.911
τ_2.4	0.9

Knoop hardness: 635
Abrasion: 113

Resistance to acids: 1

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
100 ~ 300	90