E-SK5 - Hikari

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.589130 n_e = 1.591427	V_d = 61.16 V_e = 60.91	n_F - n_C = 0.009632 n_F' - n_C' = 0.009708	Coloring: 0.334 - 0.294 mkm.

Type: Schott
Spectral range: 0.4046561 - 0.76819 mkm.
C1 = 2.48616859 C2 = -0.00962090414 C3 = 0.0146866348 C4 = -0.000117877135 C5 = 0.0000443876615 C6 = -0.00000205228288

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	-----
n _s	-----
n _r	1.584499
n _C	1.586185
n _C'	1.586655
n _0.6328	1.587094
n _D	1.589044
n _d	1.589130
n _e	1.591427
n _F	1.595818
n _F'	1.596364
n _g	1.601028
n _h	1.605348
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'	0.3520
P_d,C	0.3056
P_e,C	0.5441
P_g,d	1.2352
P_g,F	0.5409
P_h,g	0.4484
P_i,g	-----
P_C',t	-----
P_e,C'	0.4953
P_F',e	0.5125
P_i,F'	-----

transmittance: 10 mm
τ_0.29	0.02
τ_0.3	0.14
τ_0.31	0.36
τ_0.32	0.58
τ_0.33	0.75
τ_0.34	0.86
τ_0.35	0.918
τ_0.36	0.957
τ_0.37	0.972
τ_0.38	0.985
τ_0.39	0.988
τ_0.4	0.992
τ_0.42	0.993
τ_0.44	0.994
τ_0.46	0.995
τ_0.48	0.996
τ_0.5	0.997
τ_0.55	0.999
τ_0.6	0.999
τ_0.65	0.998
τ_0.7	0.999

Poisson coef.: 0.252
Rigidity: 34.6 Pa*10⁸
Young module: 86.7 Pa*10⁸
Knoop hardness: 611
Abrasion: 126

Resistance to acids: 4

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
100 ~ 300	69