E-SK11 - Hikari

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.563839 n_e = 1.566055	V_d = 60.67 V_e = 60.43	n_F - n_C = 0.009292 n_F' - n_C' = 0.009366	Coloring: 0.336 - 0.300 mkm.

Type: Schott
Spectral range: 0.4046561 - 0.76819 mkm.
C1 = 2.41034365 C2 = -0.0101286559 C3 = 0.0126748412 C4 = 0.000257347078 C5 = -0.00000624279133 C6 = 0.000000335932224

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	-----
n _s	-----
n _r	1.559380
n _C	1.561002
n _C'	1.561455
n _0.6328	1.561877
n _D	1.563756
n _d	1.563839
n _e	1.566055
n _F	1.570294
n _F'	1.570821
n _g	1.575317
n _h	1.579472
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'	0.3510
P_d,C	0.3052
P_e,C	0.5437
P_g,d	1.2353
P_g,F	0.5405
P_h,g	0.4471
P_i,g	-----
P_C',t	-----
P_e,C'	0.4950
P_F',e	0.5129
P_i,F'	-----

transmittance: 10 mm
τ_0.28	0.02
τ_0.29	0.13
τ_0.3	0.34
τ_0.31	0.58
τ_0.32	0.76
τ_0.33	0.87
τ_0.34	0.934
τ_0.35	0.968
τ_0.36	0.985
τ_0.37	0.991
τ_0.38	0.993
τ_0.39	0.998
τ_0.4	0.998
τ_0.42	0.998
τ_0.44	0.996
τ_0.46	0.997
τ_0.48	0.999
τ_0.5	0.999
τ_0.55	0.999
τ_0.6	0.999
τ_0.65	0.998
τ_0.7	0.999

Knoop hardness: 492
Abrasion: 106

Resistance to acids: 3

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
100 ~ 300	76