E-LAK12 - Hikari

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.677900 n_e = 1.680816	V_d = 55.39 V_e = 55.15	n_F - n_C = 0.012237 n_F' - n_C' = 0.012343	Coloring: 0.337 - 0.278 mkm.

Type: Schott
Spectral range: 0.4046561 - 0.76819 mkm.
C1 = 2.78094755 C2 = -0.0236624998 C3 = 0.00867653717 C4 = 0.00294181002 C5 = -0.000351554137 C6 = 0.0000184406503

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	-----
n _s	-----
n _r	1.672063
n _C	1.674185
n _C'	1.674776
n _0.6328	1.675329
n _D	1.677791
n _d	1.677900
n _e	1.680816
n _F	1.686422
n _F'	1.687120
n _g	1.693084
n _h	1.698633
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'	0.3499
P_d,C	0.3035
P_e,C	0.5419
P_g,d	1.2408
P_g,F	0.5443
P_h,g	0.4534
P_i,g	-----
P_C',t	-----
P_e,C'	0.4935
P_F',e	0.5151
P_i,F'	-----

transmittance: 10 mm
τ_0.29	0.01
τ_0.3	0.09
τ_0.31	0.3
τ_0.32	0.52
τ_0.33	0.69
τ_0.34	0.81
τ_0.35	0.88
τ_0.36	0.929
τ_0.37	0.957
τ_0.38	0.971
τ_0.39	0.98
τ_0.4	0.984
τ_0.42	0.988
τ_0.44	0.989
τ_0.46	0.992
τ_0.48	0.994
τ_0.5	0.995
τ_0.55	0.997
τ_0.6	0.998
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	0.992
τ_1.6	0.995
τ_1.8	0.982
τ₂	0.96
τ_2.2	0.88
τ_2.4	0.7

Knoop hardness: 530
Abrasion: 155

Resistance to acids: 5

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
100 ~ 300	81