LAL52 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) | 1.669999 |
|---|---|
| Abbe Number (Vd) | 57.327972 |
| Dispersion Formula | Schott |
| Wavelength Range | 0.334 — 2.325 µm |
$$n(\lambda) = \sqrt{2.74187 - 0.0127192\,\lambda^2 + 0.016307\,\lambda^{-2} + 0.000614142\,\lambda^{-4} - 4.82426 \times 10^{-5}\,\lambda^{-6} + 2.88759 \times 10^{-6}\,\lambda^{-8}}$$
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 | |
|---|---|---|---|---|
| LACL7 | Hoya | 1.669996 | 57.308358 | |
| LAK23 | Schott | 1.668816 | 57.38444 | |
| LAKN4 | Sumita | 1.671 | 57.2 | |
| K-LaKn4 | Sumita | 1.671 | 57.2 | |
| H-LAK1 | CDGM | 1.6595 | 57.34726 | |
| LAK11 | Sumita | 1.6583 | 57.3 | |
| K-LaK11 | Sumita | 1.6583 | 57.3 | |
| LAK11 | Schott | 1.658302 | 57.261599 | |
| LAC11 | Hoya | 1.658296 | 57.262085 | |
| C57-57 | Corning | 1.657503 | 57.198059 |
Similar Glasses (Ohara)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| S-LAL52 | Ohara | 1.669999 | 57.327972 | |
| S-LAL11 | Ohara | 1.658296 | 57.332589 | |
| LAL11 | Ohara | 1.658296 | 57.332589 | |
| S-LAL12Q | Ohara | 1.6779 | 55.346888 | |
| S-LAL12 | Ohara | 1.6779 | 55.341195 | |
| LAL12 | Ohara | 1.6779 | 55.337587 | |
| L-LAL12 | Ohara | 1.6779 | 54.88744 | |
| LAL7 | Ohara | 1.651597 | 58.519433 | |
| S-LAL7Q | Ohara | 1.6516 | 58.544459 | |
| S-LAL7 | Ohara | 1.651597 | 58.550655 |