LAH59 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) | 1.816 |
|---|---|
| Abbe Number (Vd) | 46.626446 |
| Dispersion Formula | Schott |
| Wavelength Range | 0.334 — 2.325 µm |
$$n(\lambda) = \sqrt{3.21781 - 0.0142968\,\lambda^2 + 0.0271995\,\lambda^{-2} + 0.000790366\,\lambda^{-4} - 2.38506 \times 10^{-5}\,\lambda^{-6} + 2.00131 \times 10^{-6}\,\lambda^{-8}}$$
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)
Similar Glasses (Ohara)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| S-LAH59 | Ohara | 1.816 | 46.620561 | |
| 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 | |
| LAH54 | Ohara | 1.815543 | 44.361146 | |
| S-LAH54 | Ohara | 1.815543 | 44.361146 | |
| LAH67 | Ohara | 1.794997 | 45.293967 | |
| S-LAH67 | Ohara | 1.794997 | 45.293967 | |
| S-LAH64 | Ohara | 1.788001 | 47.368522 |