LACL5 by Hoya

Obsolete Unknown Environmentally Dangerous
Refractive Index vs Wavelength
Refractive Index Calculator
Valid range: 0.25–1.55 µm
dn/dλ vs Wavelength
dn/dλ Calculator
Valid range: 0.25–1.55 µm
Abbe Number Calculator
Transmission vs Wavelength
Transmission Calculator
Valid wavelength range: 0.320–1.550 µm
Optical Properties
Refractive Index (nd) 1.693503
Abbe Number (Vd) 50.787122
Dispersion Formula Schott
Wavelength Range 0.25 — 1.55 µm
$$n(\lambda) = \sqrt{2.80552 - 0.00816839\,\lambda^2 + 0.0220799\,\lambda^{-2} + 8.9419 \times 10^{-5}\,\lambda^{-4} + 2.08856 \times 10^{-5}\,\lambda^{-6} + 4.52597 \times 10^{-7}\,\lambda^{-8}}$$
Thermal Properties
TCE -30/70°C (10-6/K) 7.8
TCE 100/300°C (10-6/K) 94.0
Thermal Conductivity (W/mK) —
Heat Capacity (J/gK) —
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[1.80603 \times 10^{-7} + 2(0)\,\Delta T + 3(0)\,\Delta T^2 + \frac{0 + 2(0)\,\Delta T}{\lambda - 0}\right] \Delta T = T - T_0, \quad T_0 = 20\,°\text{C}$$
Physical Properties
Density (g/cm³) 4.15
Relative Cost 5.8
Mechanical Properties
Young's Modulus (GPa) —
Poisson's Ratio —
Knoop Hardness (kgf/mm²) —
Chemical Resistance
Climatic Resistance 1
Stain Resistance 3
Acid Resistance 4
Alkali Resistance —
Phosphate Resistance —
Similar Glasses (Other Manufacturers)
Glass Manufacturer nd Vd
LAL58 Ohara 1.693495 50.807634
S-LAL58 Ohara 1.693495 50.810652
LAKN10 Sumita 1.692 50.6
S-LAL20 Ohara 1.6993 51.112184
LAFN23 Schott 1.689004 49.711581
C90-50 Corning 1.689009 49.625392
H-LAF1 CDGM 1.69362 49.193837
LAFN1 Sumita 1.685 49.2
S-LAL21 Ohara 1.703 52.379403
H-LAK71 CDGM 1.703 52.406734
Similar Glasses (Hoya)
Glass Manufacturer nd Vd
LAFL23 Hoya 1.689 49.475821
LAFL1 Hoya 1.686004 49.347081
LACL9 Hoya 1.6779 50.551353
LAFL2 Hoya 1.697 48.514006
MC-LAC130 Hoya 1.6935 53.2
M-LAC130 Hoya 1.6935 53.2
MP-LAC130 Hoya 1.6935 53.2
LAC13 Hoya 1.6935 53.34
LAFL20 Hoya 1.68248 48.197606
LAFL3 Hoya 1.700301 47.836538
Compare Glasses
    Compare Selected