LACL60 - Hoya

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.639999 n_e = 1.642537	V_d = 60.20 V_e = 60.00	n_F - n_C = 0.010631 n_F' - n_C' = 0.010708	Coloring: 0.28 - 0.35 mkm.

Type: Schott
Spectral range: 0.36501 - 1.014 mkm.
C1 = 2.6490884 C2 = -0.014159869 C3 = 0.014451135 C4 = 0.00052707873 C5 = -0.000043447523 C6 = 0.0000024612971

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.627589
n _s	1.630829
n _r	1.634862
n _C	1.636738
n _C'	1.637259
n _0.6328	1.637746
n _D	1.639904
n _d	1.639999
n _e	1.642537
n _F	1.647369
n _F'	1.647968
n _g	1.653068
n _h	1.657772
n _i	1.665772
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.8605
P_C,A'	0.3558
P_d,C	0.3067
P_e,C	0.5454
P_g,d	1.2292
P_g,F	0.5360
P_h,g	0.4424
P_i,g	1.1949
P_C',t	0.9096
P_e,C'	0.4963
P_F',e	0.5109
P_i,F'	1.6746

transmittance: 5 mm
τ_1.55	0.997
τ_1.5	0.996
τ_1.4	0.995
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	0.998
τ_0.55	0.999
τ_0.5	0.999
τ_0.48	0.998
τ_0.46	0.997
τ_0.44	0.996
τ_0.42	0.995
τ_0.4	0.993
τ_0.39	0.99
τ_0.38	0.984
τ_0.37	0.976
τ_0.36	0.96
τ_0.35	0.94
τ_0.34	0.9
τ_0.33	0.84
τ_0.32	0.76
τ_0.31	0.65
τ_0.3	0.54
τ_0.29	0.41
τ_0.28	0.28

transmittance: 10 mm
τ_1.55	0.993
τ_1.5	0.992
τ_1.4	0.991
τ_1.3	0.998
τ_1.2	0.998
τ_1.1	0.998
τ_1.06	0.998
τ_1.05	0.998
τ₁	0.998
τ_0.95	0.998
τ_0.9	0.998
τ_0.85	0.999
τ_0.83	0.998
τ_0.8	0.998
τ_0.78	0.998
τ_0.75	0.998
τ_0.7	0.998
τ_0.65	0.997
τ_0.6	0.997
τ_0.55	0.998
τ_0.5	0.997
τ_0.48	0.996
τ_0.46	0.994
τ_0.44	0.993
τ_0.42	0.99
τ_0.4	0.985
τ_0.39	0.979
τ_0.38	0.969
τ_0.37	0.952
τ_0.36	0.922
τ_0.35	0.87
τ_0.34	0.8
τ_0.33	0.7
τ_0.32	0.57
τ_0.31	0.43
τ_0.3	0.29
τ_0.29	0.17
τ_0.28	0.08

Poisson coef.: 0.282
Rigidity: 413 Pa*10⁸
Young module: 1058 Pa*10⁸
Knoop hardness: 665
Abrasion: 90

Staining: 5
Resistance to acids: 4

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
-30 ~ 70	60
100 ~ 300	75

Temperature coefs. of n_abs
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20		0.9
-20 ~ 0		1.1
0 ~ 20		1.4
20 ~ 40		1.7
40 ~ 60		2
60 ~ 80		2.3

Temperature coefs. of n_rel
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20		3.1
-20 ~ 0		3
0 ~ 20		3.1
20 ~ 40		3.1
40 ~ 60		3.3
60 ~ 80		3.5