S-LAH59 by Ohara
Standard
Medium
Environmentally Friendly
Refractive Index vs Wavelength
Refractive Index Calculator
dn/dλ vs Wavelength
dn/dλ Calculator
Abbe Number Calculator
Transmission vs Wavelength
Transmission Calculator
Optical Properties
| Refractive Index (nd) | 1.816 |
|---|---|
| Abbe Number (Vd) | 46.620561 |
| Dispersion Formula | Sellmeier |
| Wavelength Range | 0.365015 — 2.32542 µm |
$$n(\lambda) = \sqrt{1 + \frac{1.51373\,\lambda^2}{\lambda^2 - 0.00705247} + \frac{0.702462\,\lambda^2}{\lambda^2 - 0.0249489} + \frac{1.33601\,\lambda^2}{\lambda^2 - 100.086}}$$
Thermal Properties
| TCE -30/70°C (10-6/K) | 6.3 |
|---|---|
| TCE 100/300°C (10-6/K) | — |
| Thermal Conductivity (W/mK) | — |
| Heat Capacity (J/gK) | — |
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[3.68 \times 10^{-6} + 2(1.12 \times 10^{-8})\,\Delta T + 3(-3.17 \times 10^{-11})\,\Delta T^2 + \frac{5.44 \times 10^{-7} + 2(6.16 \times 10^{-10})\,\Delta T}{\lambda - 0.236}\right]
\Delta T = T - T_0, \quad T_0 = 25\,°\text{C}$$
Physical Properties
| Density (g/cm³) | 5.07 |
|---|---|
| Relative Cost | 6.2 |
Mechanical Properties
| Young's Modulus (GPa) | — |
|---|---|
| Poisson's Ratio | — |
| Knoop Hardness (kgf/mm²) | — |
Chemical Resistance
| Climatic Resistance | 1 |
|---|---|
| Stain Resistance | — |
| Acid Resistance | 3 |
| Alkali Resistance | — |
| Phosphate Resistance | 1 |
Notes
Recommended
Similar Glasses (Other Manufacturers)
Similar Glasses (Ohara)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| LAH59 | Ohara | 1.816 | 46.626446 | |
| 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 | |
| S-LAH54 | Ohara | 1.815543 | 44.361146 | |
| 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 |