LAH64 by Ohara
Obsolete
Unknown
Environmentally Friendly
Refractive Index vs Wavelength
Refractive Index Calculator
dn/dλ vs Wavelength
dn/dλ Calculator
Abbe Number Calculator
Transmission vs Wavelength
No transmission data available.
Optical Properties
| Refractive Index (nd) | 1.788001 |
|---|---|
| Abbe Number (Vd) | 47.385275 |
| Dispersion Formula | Schott |
| Wavelength Range | 0.334 — 2.325 µm |
$$n(\lambda) = \sqrt{3.12274 - 0.0151731\,\lambda^2 + 0.0257665\,\lambda^{-2} + 0.00055121\,\lambda^{-4} + 6.07108 \times 10^{-6}\,\lambda^{-6} + 4.88714 \times 10^{-7}\,\lambda^{-8}}$$
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 | |
|---|---|---|---|---|
| D88-47 | Corning | 1.788001 | 47.412327 | |
| K-LaSFn16 | Sumita | 1.7883 | 47.4 | |
| LASFN16 | Sumita | 1.7883 | 47.4 | |
| LAFN21 | Schott | 1.788309 | 47.470398 | |
| N-LAF21 | Schott | 1.788 | 47.49 | |
| TAF4 | Hoya | 1.788 | 47.49 | |
| H-LAF10LA | CDGM | 1.788 | 47.491731 | |
| TAF48 | Hoya | 1.79091 | 48.09 | |
| MP-TAF401 | Hoya | 1.77377 | 47.17 | |
| MC-TAF401 | Hoya | 1.77377 | 47.17 |
Similar Glasses (Ohara)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| S-LAH64 | Ohara | 1.788001 | 47.368522 | |
| S-LAH67 | Ohara | 1.794997 | 45.293967 | |
| LAH67 | Ohara | 1.794997 | 45.293967 | |
| S-LAH65V | Ohara | 1.803999 | 46.583432 | |
| LAH65 | Ohara | 1.804 | 46.575911 | |
| S-LAH65 | Ohara | 1.804 | 46.570373 | |
| S-LAH65VS | Ohara | 1.804 | 46.527532 | |
| L-LAH87 | Ohara | 1.7703 | 47.401904 | |
| S-YGH52 | Ohara | 1.7865 | 50.001717 | |
| YGH52 | Ohara | 1.7865 | 50.001717 |