E-BAK4 - Hikari

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.568832 n_e = 1.571237	V_d = 56.33 V_e = 56.06	n_F - n_C = 0.010096 n_F' - n_C' = 0.010189	Coloring: 0.353 - 0.329 mkm.

Type: Schott
Spectral range: 0.4046561 - 0.76819 mkm.
C1 = 2.4220474 C2 = -0.00935286439 C3 = 0.0138282404 C4 = 0.000292097262 C5 = -0.00000577819731 C6 = 0.000000705644888

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	-----
n _s	-----
n _r	1.564039
n _C	1.565774
n _C'	1.566260
n _0.6328	1.566714
n _D	1.568742
n _d	1.568832
n _e	1.571237
n _F	1.575870
n _F'	1.576449
n _g	1.581412
n _h	1.586040
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'	0.3442
P_d,C	0.3028
P_e,C	0.5410
P_g,d	1.2459
P_g,F	0.5487
P_h,g	0.4584
P_i,g	-----
P_C',t	-----
P_e,C'	0.4929
P_F',e	0.5162
P_i,F'	-----

transmittance: 10 mm
τ_0.32	0.04
τ_0.33	0.3
τ_0.34	0.64
τ_0.35	0.84
τ_0.36	0.932
τ_0.37	0.977
τ_0.38	0.994
τ_0.39	0.999
τ_0.4	0.999
τ_0.42	0.999
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	0.999
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	0.999
τ_1.6	0.999
τ_1.8	0.999
τ₂	0.98
τ_2.2	0.935
τ_2.4	0.89

Knoop hardness: 551
Abrasion: 149

Resistance to acids: 1

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
100 ~ 300	83