LAC10 - Hoya

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.719998 n_e = 1.723406	V_d = 50.34 V_e = 50.10	n_F - n_C = 0.014301 n_F' - n_C' = 0.014438	Coloring: 0.31 - 0.37 mkm.

Type: Schott
Spectral range: 0.36501 - 1.014 mkm.
C1 = 2.8951998 C2 = -0.011701218 C3 = 0.022126485 C4 = 0.00038494791 C5 = -0.0000079808302 C6 = 0.0000015035116

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.704420
n _s	1.708183
n _r	1.713239
n _C	1.715678
n _C'	1.716363
n _0.6328	1.717004
n _D	1.719871
n _d	1.719998
n _e	1.723406
n _F	1.729980
n _F'	1.730802
n _g	1.737849
n _h	1.744431
n _i	1.755788
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7872
P_C,A'	0.3404
P_d,C	0.3020
P_e,C	0.5403
P_g,d	1.2482
P_g,F	0.5502
P_h,g	0.4602
P_i,g	1.2543
P_C',t	0.8351
P_e,C'	0.4924
P_F',e	0.5171
P_i,F'	1.7471

transmittance: 5 mm
τ_1.55	0.998
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	0.999
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	0.998
τ_0.65	0.998
τ_0.6	0.998
τ_0.55	0.998
τ_0.5	0.998
τ_0.48	0.998
τ_0.46	0.997
τ_0.44	0.997
τ_0.42	0.996
τ_0.4	0.993
τ_0.39	0.989
τ_0.38	0.985
τ_0.37	0.975
τ_0.36	0.958
τ_0.35	0.926
τ_0.34	0.879
τ_0.33	0.807
τ_0.32	0.69
τ_0.31	0.492
τ_0.3	0.214
τ_0.29	0.03

transmittance: 10 mm
τ_1.55	0.997
τ_1.5	0.997
τ_1.4	0.998
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	0.998
τ_0.7	0.996
τ_0.65	0.996
τ_0.6	0.996
τ_0.55	0.996
τ_0.5	0.996
τ_0.48	0.996
τ_0.46	0.994
τ_0.44	0.994
τ_0.42	0.991
τ_0.4	0.985
τ_0.39	0.979
τ_0.38	0.97
τ_0.37	0.95
τ_0.36	0.917
τ_0.35	0.858
τ_0.34	0.772
τ_0.33	0.65
τ_0.32	0.476
τ_0.31	0.242
τ_0.3	0.046

Poisson coef.: 0.276
Rigidity: 393 Pa*10⁸
Young module: 1002 Pa*10⁸
Knoop hardness: 650
Optical stress coef.: 1.87 1/Pa*10¹²
Abrasion: 110

Staining: 4
Resistance to acids: 4

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
-30 ~ 70	74
100 ~ 300	86

Temperature coefs. of n_abs
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20		0.7
-20 ~ 0		0.9
0 ~ 20		1.1
20 ~ 40		1.4
40 ~ 60		1.7
60 ~ 80		2

Temperature coefs. of n_rel
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20		3
-20 ~ 0		2.9
0 ~ 20		2.8
20 ~ 40		2.9
40 ~ 60		3
60 ~ 80		3.1