LAL8 by Ohara

Obsolete Unknown Environmentally Friendly

LAL8 by Ohara is an obsolete optical glass. It transmits from 0.33 to 2.33 µm with an nd of 1.712995 and a Vd of 53.845848.

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) 1.712995
Abbe Number (Vd) 53.845848
Dispersion Formula Schott
Wavelength Range 0.334 — 2.325 µm
$$n(\lambda) = \sqrt{2.87956 - 0.0146224\,\lambda^2 + 0.0191285\,\lambda^{-2} + 0.000613427\,\lambda^{-4} - 3.5439 \times 10^{-5}\,\lambda^{-6} + 2.15504 \times 10^{-6}\,\lambda^{-8}}$$
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
D13-54 Corning 1.713 53.843096
H-LAK7A CDGM 1.713 53.832974
LAK8 Schott 1.713003 53.831633
N-LAK8 Schott 1.713 53.83
LAK8 Sumita 1.713 53.9
K-LaK8 Sumita 1.713 53.9
M-LAC8 Hoya 1.713 53.94
LAC8 Hoya 1.713 53.94
MP-LAC8-30 Hoya 1.7133 53.95
TAC1 Hoya 1.725999 53.41758
Similar Glasses (Ohara)
Glass Manufacturer nd Vd Compare
S-LAL8 Ohara 1.712995 53.867058
LAL60 Ohara 1.725999 53.565698
S-LAL60 Ohara 1.725999 53.565698
S-LAL21 Ohara 1.703 52.379403
S-LAL19 Ohara 1.72916 54.095223
S-LAL18 Ohara 1.729157 54.680013
LAL18 Ohara 1.729157 54.683134
LAL13 Ohara 1.693501 53.231566
S-LAL13 Ohara 1.693501 53.205327
L-LAL13 Ohara 1.6935 53.185799
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