E-ADF50 - Hoya

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

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Main parameters
n_d = 1.654119 n_e = 1.658034	V_d = 39.62 V_e = 39.38	n_F - n_C = 0.016509 n_F' - n_C' = 0.016706	Coloring: 0.35 - 0.40 mkm.

Type: Schott
Spectral range: 0.36501 - 1.014 mkm.
C1 = 2.6680422 C2 = -0.013184258 C3 = 0.023930479 C4 = 0.00023928655 C5 = 0.000050697941 C6 = 0.00000091240958

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.636470
n _s	1.640736
n _r	1.646445
n _C	1.649205
n _C'	1.649981
n _0.6328	1.650709
n _D	1.653974
n _d	1.654119
n _e	1.658034
n _F	1.665714
n _F'	1.666688
n _g	1.675186
n _h	1.683379
n _i	1.698147
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7713
P_C,A'	0.3333
P_d,C	0.2976
P_e,C	0.5348
P_g,d	1.2760
P_g,F	0.5737
P_h,g	0.4962
P_i,g	1.3907
P_C',t	0.8183
P_e,C'	0.4877
P_F',e	0.5241
P_i,F'	1.9055

transmittance: 5 mm
τ_1.55	0.986
τ_1.5	0.984
τ_1.4	0.976
τ_1.3	0.996
τ_1.2	0.997
τ_1.1	0.997
τ_1.06	0.998
τ_1.05	0.997
τ₁	0.996
τ_0.95	0.996
τ_0.9	0.996
τ_0.85	0.996
τ_0.83	0.996
τ_0.8	0.997
τ_0.78	0.997
τ_0.75	0.997
τ_0.7	0.997
τ_0.65	0.997
τ_0.6	0.997
τ_0.55	0.998
τ_0.5	0.996
τ_0.48	0.994
τ_0.46	0.99
τ_0.44	0.984
τ_0.42	0.975
τ_0.4	0.953
τ_0.39	0.93
τ_0.38	0.89
τ_0.37	0.8
τ_0.36	0.62
τ_0.35	0.3
τ_0.34	0.06

transmittance: 10 mm
τ_1.55	0.972
τ_1.5	0.967
τ_1.4	0.953
τ_1.3	0.993
τ_1.2	0.995
τ_1.1	0.994
τ_1.06	0.995
τ_1.05	0.994
τ₁	0.993
τ_0.95	0.992
τ_0.9	0.993
τ_0.85	0.992
τ_0.83	0.993
τ_0.8	0.993
τ_0.78	0.993
τ_0.75	0.993
τ_0.7	0.994
τ_0.65	0.995
τ_0.6	0.995
τ_0.55	0.995
τ_0.5	0.992
τ_0.48	0.987
τ_0.46	0.98
τ_0.44	0.969
τ_0.42	0.95
τ_0.4	0.909
τ_0.39	0.87
τ_0.38	0.79
τ_0.37	0.63
τ_0.36	0.38
τ_0.35	0.09

Knoop hardness: 460
Abrasion: 160

Resistance to acids: 6

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
100 ~ 300	61