BACD16 - Hoya

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.620408 n_e = 1.622862	V_d = 60.34 V_e = 60.10	n_F - n_C = 0.010281 n_F' - n_C' = 0.010362	Coloring: 0.30 - 0.36 mkm.

Type: Schott
Spectral range: 0.36501 - 1.014 mkm.
C1 = 2.5859898 C2 = -0.011940432 C3 = 0.013995502 C4 = 0.00048974502 C5 = -0.000039120717 C6 = 0.0000022611915

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.608649
n _s	1.611654
n _r	1.615473
n _C	1.617268
n _C'	1.617769
n _0.6328	1.618237
n _D	1.620317
n _d	1.620408
n _e	1.622862
n _F	1.627550
n _F'	1.628132
n _g	1.633096
n _h	1.637682
n _i	1.645498
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.8383
P_C,A'	0.3511
P_d,C	0.3054
P_e,C	0.5440
P_g,d	1.2340
P_g,F	0.5394
P_h,g	0.4461
P_i,g	1.2063
P_C',t	0.8870
P_e,C'	0.4952
P_F',e	0.5126
P_i,F'	1.6891

transmittance: 5 mm
τ_1.55	0.995
τ_1.5	0.995
τ_1.4	0.992
τ_1.3	0.999
τ_1.2	0.999
τ_1.1	0.999
τ_1.06	0.999
τ_1.05	0.999
τ₁	0.999
τ_0.95	0.999
τ_0.9	0.999
τ_0.85	0.999
τ_0.83	0.999
τ_0.8	0.999
τ_0.78	0.999
τ_0.75	0.999
τ_0.7	0.999
τ_0.65	0.999
τ_0.6	0.999
τ_0.55	0.999
τ_0.5	0.999
τ_0.48	0.998
τ_0.46	0.997
τ_0.44	0.997
τ_0.42	0.996
τ_0.4	0.994
τ_0.39	0.991
τ_0.38	0.986
τ_0.37	0.975
τ_0.36	0.956
τ_0.35	0.92
τ_0.34	0.86
τ_0.33	0.77
τ_0.32	0.63
τ_0.31	0.47
τ_0.3	0.29
τ_0.29	0.13
τ_0.28	0.03

transmittance: 10 mm
τ_1.55	0.99
τ_1.5	0.99
τ_1.4	0.984
τ_1.3	0.999
τ_1.2	0.999
τ_1.1	0.999
τ_1.06	0.999
τ_1.05	0.999
τ₁	0.999
τ_0.95	0.999
τ_0.9	0.999
τ_0.85	0.999
τ_0.83	0.999
τ_0.8	0.999
τ_0.78	0.999
τ_0.75	0.999
τ_0.7	0.997
τ_0.65	0.997
τ_0.6	0.997
τ_0.55	0.997
τ_0.5	0.997
τ_0.48	0.996
τ_0.46	0.994
τ_0.44	0.994
τ_0.42	0.993
τ_0.4	0.987
τ_0.39	0.982
τ_0.38	0.973
τ_0.37	0.952
τ_0.36	0.914
τ_0.35	0.847
τ_0.34	0.74
τ_0.33	0.59
τ_0.32	0.4
τ_0.31	0.22
τ_0.3	0.08
τ_0.29	0.02

Poisson coef.: 0.269
Rigidity: 348 Pa*10⁸
Young module: 883 Pa*10⁸
Knoop hardness: 575
Abrasion: 130

Resistance to acids: 5

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
-30 ~ 70	60
100 ~ 300	72

Temperature coefs. of n_abs
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20		0.1
-20 ~ 0		0.4
0 ~ 20		0.7
20 ~ 40		1
40 ~ 60		1.3
60 ~ 80		1.5

Temperature coefs. of n_rel
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20		2.3
-20 ~ 0		2.3
0 ~ 20		2.3
20 ~ 40		2.4
40 ~ 60		2.5
60 ~ 80		2.6