E-BAK1 - Hikari

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.572500 n_e = 1.574860	V_d = 57.73 V_e = 57.45	n_F - n_C = 0.009915 n_F' - n_C' = 0.010006	Coloring: 0.324 - 0.291 mkm.

Type: Schott
Spectral range: 0.4046561 - 0.76819 mkm.
C1 = 2.44353274 C2 = -0.0161455184 C3 = 0.00881927898 C4 = 0.00144687542 C5 = -0.000136331798 C6 = 0.00000603309808

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	-----
n _s	-----
n _r	1.567784
n _C	1.569498
n _C'	1.569976
n _0.6328	1.570422
n _D	1.572411
n _d	1.572500
n _e	1.574860
n _F	1.579413
n _F'	1.579982
n _g	1.584846
n _h	1.589355
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'	0.3484
P_d,C	0.3027
P_e,C	0.5408
P_g,d	1.2451
P_g,F	0.5479
P_h,g	0.4547
P_i,g	-----
P_C',t	-----
P_e,C'	0.4926
P_F',e	0.5165
P_i,F'	-----

transmittance: 10 mm
τ_0.29	0.04
τ_0.3	0.23
τ_0.31	0.52
τ_0.32	0.74
τ_0.33	0.87
τ_0.34	0.933
τ_0.35	0.963
τ_0.36	0.983
τ_0.37	0.991
τ_0.38	0.995
τ_0.39	0.997
τ_0.4	0.997
τ_0.42	0.999
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

Knoop hardness: 597
Abrasion: 98

Resistance to acids: 1

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
100 ~ 300	85