E-SSK5 - Hikari

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

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Main parameters
n_d = 1.658441 n_e = 1.661520	V_d = 50.89 V_e = 50.60	n_F - n_C = 0.012937 n_F' - n_C' = 0.013072	Coloring: 0.366 - 0.331 mkm.

Type: Schott
Spectral range: 0.4046561 - 0.76819 mkm.
C1 = 2.69603796 C2 = -0.0100729839 C3 = 0.0188657945 C4 = 0.00036803849 C5 = 0.00000406084448 C6 = 0.000000457460676

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	-----
n _s	-----
n _r	1.652368
n _C	1.654554
n _C'	1.655169
n _0.6328	1.655745
n _D	1.658326
n _d	1.658441
n _e	1.661520
n _F	1.667492
n _F'	1.668241
n _g	1.674690
n _h	1.680740
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'	0.3369
P_d,C	0.3003
P_e,C	0.5384
P_g,d	1.2559
P_g,F	0.5563
P_h,g	0.4676
P_i,g	-----
P_C',t	-----
P_e,C'	0.4908
P_F',e	0.5195
P_i,F'	-----

transmittance: 10 mm
τ_0.34	0.08
τ_0.35	0.37
τ_0.36	0.66
τ_0.37	0.83
τ_0.38	0.911
τ_0.39	0.951
τ_0.4	0.972
τ_0.42	0.988
τ_0.44	0.992
τ_0.46	0.995
τ_0.48	0.998
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	0.99
τ₂	0.981
τ_2.2	0.941
τ_2.4	0.85

Knoop hardness: 521
Abrasion: 184

Resistance to acids: 3

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
100 ~ 300	82