LAC6 by Hoya

Obsolete Unknown Environmentally Dangerous

LAC6 by Hoya is an obsolete optical glass. It transmits from 0.33 to 2.33 µm with an nd of 1.642498 and a Vd of 57.959359. It has dangerous environmental properties.

Refractive Index vs Wavelength
Refractive Index Calculator
Valid range: 0.334–2.325 µm
dn/dλ vs Wavelength
dn/dλ Calculator
Valid range: 0.334–2.325 µm
Abbe Number Calculator
Transmission vs Wavelength

No transmission data available.

Transmission Calculator
Valid wavelength range: 0.334–2.325 µm
Optical Properties
Refractive Index (nd) 1.642498
Abbe Number (Vd) 57.959359
Dispersion Formula Schott
Wavelength Range 0.334 — 2.325 µm
$$n(\lambda) = \sqrt{2.6562 - 0.01355\,\lambda^2 + 0.0138976\,\lambda^{-2} + 0.000962708\,\lambda^{-4} - 0.000100296\,\lambda^{-6} + 5.44144 \times 10^{-6}\,\lambda^{-8}}$$
Thermal Properties
TCE -30/70°C (10-6/K) —
TCE 100/300°C (10-6/K) —
Thermal Conductivity (W/mK) —
Heat Capacity (J/gK) —
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[0 + 2(0)\,\Delta T + 3(0)\,\Delta T^2 + \frac{0 + 2(0)\,\Delta T}{\lambda - 0}\right] \Delta T = T - T_0, \quad T_0 = 25\,°\text{C}$$
Physical Properties
Density (g/cm³) —
Relative Cost —
Mechanical Properties
Young's Modulus (GPa) —
Poisson's Ratio —
Knoop Hardness (kgf/mm²) —
Chemical Resistance
Climatic Resistance —
Stain Resistance —
Acid Resistance —
Alkali Resistance —
Phosphate Resistance —
Similar Glasses (Other Manufacturers)
Glass Manufacturer nd Vd Compare
LAKN6 Schott 1.642499 57.962061
C42-58 Corning 1.642502 58.061633
K-LaK6 Sumita 1.6425 58.1
LAK6 Sumita 1.6425 58.1
BSM36 Ohara 1.642495 58.369399
S-BSM36 Ohara 1.642495 58.369399
S-BSM93 Ohara 1.640998 56.927542
BSM93 Ohara 1.640998 56.927542
LAKN13 Sumita 1.641 56.8
LAK7 Sumita 1.6516 58.3
Similar Glasses (Hoya)
Glass Manufacturer nd Vd Compare
LACL1 Hoya 1.640851 56.835319
LAC7 Hoya 1.6516 58.4
LACL6 Hoya 1.640003 60.153568
LAC11 Hoya 1.658296 57.262085
LACL60 Hoya 1.64 60.2
LACL2 Hoya 1.650201 55.737216
BACD18 Hoya 1.63854 55.45
BACD15 Hoya 1.62299 58.12
MP-BACD15 Hoya 1.62263 58.17
M-BACD15 Hoya 1.62263 58.17
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