FDS30 - Hoya

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.784701 n_e = 1.791786	V_d = 26.10 V_e = 25.88	n_F - n_C = 0.030061 n_F' - n_C' = 0.030589	Coloring: 0.37 - 0.43 mkm.

Type: Schott
Spectral range: 0.40466 - 1.014 mkm.
C1 = 3.062548 C2 = -0.014900756 C3 = 0.033984968 C4 = 0.0043622376 C5 = -0.00041409275 C6 = 0.000039426957

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.756150
n _s	1.762347
n _r	1.771441
n _C	1.776096
n _C'	1.777430
n _0.6328	1.778690
n _D	1.784442
n _d	1.784701
n _e	1.791786
n _F	1.806157
n _F'	1.808020
n _g	1.824663
n _h	-----
n _i	-----
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.6635
P_C,A'	0.3035
P_d,C	0.2862
P_e,C	0.5219
P_g,d	1.3293
P_g,F	0.6155
P_h,g	-----
P_i,g	-----
P_C',t	0.7079
P_e,C'	0.4775
P_F',e	0.5400
P_i,F'	-----

transmittance: 5 mm
τ_1.55	0.999
τ_1.5	0.998
τ_1.4	0.999
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	0.998
τ_0.9	0.998
τ_0.85	0.999
τ_0.83	0.998
τ_0.8	0.999
τ_0.78	0.999
τ_0.75	0.998
τ_0.7	0.996
τ_0.65	0.994
τ_0.6	0.995
τ_0.55	0.995
τ_0.5	0.989
τ_0.48	0.985
τ_0.46	0.981
τ_0.44	0.975
τ_0.42	0.96
τ_0.4	0.92
τ_0.39	0.86
τ_0.38	0.73
τ_0.37	0.41
τ_0.36	0.06

transmittance: 10 mm
τ_1.55	0.998
τ_1.5	0.997
τ_1.4	0.995
τ_1.3	0.998
τ_1.2	0.999
τ_1.1	0.999
τ_1.06	0.998
τ_1.05	0.998
τ₁	0.998
τ_0.95	0.997
τ_0.9	0.997
τ_0.85	0.998
τ_0.83	0.997
τ_0.8	0.997
τ_0.78	0.998
τ_0.75	0.995
τ_0.7	0.992
τ_0.65	0.99
τ_0.6	0.991
τ_0.55	0.99
τ_0.5	0.978
τ_0.48	0.97
τ_0.46	0.962
τ_0.44	0.95
τ_0.42	0.93
τ_0.4	0.85
τ_0.39	0.75
τ_0.38	0.54
τ_0.37	0.17

Poisson coef.: 0.271
Rigidity: 349 Pa*10⁸
Young module: 887 Pa*10⁸
Knoop hardness: 575
Abrasion: 190

Staining: 1
Resistance to acids: 1

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
-30 ~ 70	90
100 ~ 300	108

Temperature coefs. of n_abs
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20		-1.7
-20 ~ 0		-1.3
0 ~ 20		-1
20 ~ 40		-0.6
40 ~ 60		-0.3
60 ~ 80		-0.1

Temperature coefs. of n_rel
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20		0.7
-20 ~ 0		0.7
0 ~ 20		0.8
20 ~ 40		0.9
40 ~ 60		1
60 ~ 80		1.1