E-KF6 - Hikari

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

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Main parameters
n_d = 1.517420 n_e = 1.519774	V_d = 52.30 V_e = 52.02	n_F - n_C = 0.009892 n_F' - n_C' = 0.009991	Coloring: 0.360 - 0.337 mkm.

Type: Schott
Spectral range: 0.4046561 - 0.76819 mkm.
C1 = 2.24955402 C2 = 0.00226224485 C3 = 0.0221746519 C4 = -0.00228248782 C5 = 0.000344437297 C6 = -0.0000173774146

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	-----
n _s	-----
n _r	1.512757
n _C	1.514435
n _C'	1.514908
n _0.6328	1.515351
n _D	1.517332
n _d	1.517420
n _e	1.519774
n _F	1.524328
n _F'	1.524899
n _g	1.529826
n _h	1.534437
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'	0.3365
P_d,C	0.3016
P_e,C	0.5396
P_g,d	1.2541
P_g,F	0.5558
P_h,g	0.4660
P_i,g	-----
P_C',t	-----
P_e,C'	0.4918
P_F',e	0.5181
P_i,F'	-----

transmittance: 10 mm
τ_0.34	0.2
τ_0.35	0.65
τ_0.36	0.88
τ_0.37	0.956
τ_0.38	0.978
τ_0.39	0.989
τ_0.4	0.994
τ_0.42	0.996
τ_0.44	0.997
τ_0.46	0.998
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	0.984
τ_1.6	0.994
τ_1.8	0.983
τ₂	0.984
τ_2.2	0.923
τ_2.4	0.923

Knoop hardness: 411
Abrasion: 104

Resistance to acids: 1

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
100 ~ 300	87