LAH65 by Ohara

Obsolete Unknown Environmentally Friendly

LAH65 by Ohara is an obsolete optical glass. It transmits from 0.33 to 2.33 µm with an nd of 1.804 and a Vd of 46.575911.

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) 1.804
Abbe Number (Vd) 46.575911
Dispersion Formula Schott
Wavelength Range 0.334 — 2.325 µm
$$n(\lambda) = \sqrt{3.1767 - 0.01535\,\lambda^2 + 0.0266907\,\lambda^{-2} + 0.000707841\,\lambda^{-4} - 1.54851 \times 10^{-5}\,\lambda^{-6} + 1.95307 \times 10^{-6}\,\lambda^{-8}}$$
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
H-ZLAF50D CDGM 1.804 46.575016
H-ZLAF50E CDGM 1.804 46.574487
K-LaSFn6 Sumita 1.804 46.6
N-LASF44 Schott 1.8042 46.5
TAF3D Hoya 1.8042 46.5
TAF3 Hoya 1.8042 46.5
E03-47 Corning 1.803002 46.408629
LASFN30 Schott 1.803181 46.379894
H-ZLAF2A CDGM 1.80279 46.761307
LASFN6 Sumita 1.80235 46.7
Similar Glasses (Ohara)
Glass Manufacturer nd Vd Compare
S-LAH65 Ohara 1.804 46.570373
S-LAH65V Ohara 1.803999 46.583432
S-LAH65VS Ohara 1.804 46.527532
S-LAH59 Ohara 1.816 46.620561
LAH59 Ohara 1.816 46.626446
S-LAH67 Ohara 1.794997 45.293967
LAH67 Ohara 1.794997 45.293967
S-LAH64 Ohara 1.788001 47.368522
LAH64 Ohara 1.788001 47.385275
LAH54 Ohara 1.815543 44.361146
Compare Glasses
    Compare Selected