E-K3 - Hikari

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.518229 n_e = 1.520324	V_d = 58.93 V_e = 58.66	n_F - n_C = 0.008793 n_F' - n_C' = 0.008869	Coloring: 0.340 - 0.318 mkm.

Type: Schott
Spectral range: 0.4046561 - 0.76819 mkm.
C1 = 2.2707833 C2 = -0.00772009861 C3 = 0.0126286148 C4 = -0.0000460005382 C5 = 0.0000330622876 C6 = -0.00000137462973

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	-----
n _s	-----
n _r	1.514030
n _C	1.515554
n _C'	1.515980
n _0.6328	1.516378
n _D	1.518150
n _d	1.518229
n _e	1.520324
n _F	1.524348
n _F'	1.524849
n _g	1.529147
n _h	1.533148
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'	0.3477
P_d,C	0.3041
P_e,C	0.5424
P_g,d	1.2417
P_g,F	0.5458
P_h,g	0.4549
P_i,g	-----
P_C',t	-----
P_e,C'	0.4940
P_F',e	0.5146
P_i,F'	-----

transmittance: 10 mm
τ_0.31	0.11
τ_0.32	0.42
τ_0.33	0.7
τ_0.34	0.86
τ_0.35	0.93
τ_0.36	0.966
τ_0.37	0.984
τ_0.38	0.989
τ_0.39	0.994
τ_0.4	0.997
τ_0.42	0.997
τ_0.44	0.996
τ_0.46	0.996
τ_0.48	0.997
τ_0.5	0.998
τ_0.55	0.999
τ_0.6	0.999
τ_0.65	0.997
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	0.998
τ_1.8	0.976
τ₂	0.95
τ_2.2	0.897
τ_2.4	0.857

Knoop hardness: 434
Abrasion: 109

Resistance to acids: 2

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
100 ~ 300	112