E-SF14 - Hikari

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.761820 n_e = 1.768584	V_d = 26.55 V_e = 26.34	n_F - n_C = 0.028686 n_F' - n_C' = 0.029176	Coloring: 0.397 - 0.365 mkm.

Type: Schott
Spectral range: 0.4046561 - 0.76819 mkm.
C1 = 2.98384614 C2 = -0.0128995609 C3 = 0.035639664 C4 = 0.00296907641 C5 = -0.00022269905 C6 = 0.0000267423649

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	-----
n _s	-----
n _r	1.749102
n _C	1.753577
n _C'	1.754859
n _0.6328	1.756066
n _D	1.761572
n _d	1.761820
n _e	1.768584
n _F	1.782264
n _F'	1.784035
n _g	1.799821
n _h	1.815652
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'	0.3063
P_d,C	0.2873
P_e,C	0.5231
P_g,d	1.3246
P_g,F	0.6120
P_h,g	0.5518
P_i,g	-----
P_C',t	-----
P_e,C'	0.4784
P_F',e	0.5386
P_i,F'	-----

transmittance: 10 mm
τ_0.37	0.08
τ_0.38	0.41
τ_0.39	0.66
τ_0.4	0.8
τ_0.42	0.907
τ_0.44	0.943
τ_0.46	0.959
τ_0.48	0.971
τ_0.5	0.982
τ_0.55	0.999
τ_0.6	0.996
τ_0.65	0.991
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	0.997
τ_1.6	0.993
τ_1.8	0.978
τ₂	0.97
τ_2.2	0.926
τ_2.4	0.89

Knoop hardness: 548
Abrasion: 167

Resistance to acids: 1

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
100 ~ 300	94