E-F2 - Hikari

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.620041 n_e = 1.624088	V_d = 36.25 V_e = 35.99	n_F - n_C = 0.017100 n_F' - n_C' = 0.017340	Coloring: 0.384 - 0.359 mkm.

Type: Schott
Spectral range: 0.4046561 - 0.76819 mkm.
C1 = 2.55739282 C2 = -0.0107951229 C3 = 0.0216807328 C4 = 0.00105165979 C5 = -0.0000536309816 C6 = 0.0000077466326

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	-----
n _s	-----
n _r	1.612250
n _C	1.615025
n _C'	1.615811
n _0.6328	1.616551
n _D	1.619891
n _d	1.620041
n _e	1.624088
n _F	1.632125
n _F'	1.633152
n _g	1.642179
n _h	1.651003
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'	0.3213
P_d,C	0.2933
P_e,C	0.5300
P_g,d	1.2946
P_g,F	0.5879
P_h,g	0.5160
P_i,g	-----
P_C',t	-----
P_e,C'	0.4840
P_F',e	0.5300
P_i,F'	-----

transmittance: 10 mm
τ_0.36	0.05
τ_0.37	0.37
τ_0.38	0.7
τ_0.39	0.86
τ_0.4	0.932
τ_0.42	0.979
τ_0.44	0.988
τ_0.46	0.991
τ_0.48	0.995
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
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	0.979
τ_2.2	0.917
τ_2.4	0.907

Poisson coef.: 0.225
Rigidity: 34 Pa*10⁸
Young module: 83.3 Pa*10⁸
Knoop hardness: 531
Abrasion: 110

Resistance to acids: 1

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
100 ~ 300	79