H-F3 by CDGM
Standard
Rare
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) | 1.61659 |
|---|---|
| Abbe Number (Vd) | 36.651688 |
| Dispersion Formula | Sellmeier |
| Wavelength Range | 0.365 — 2.325 µm |
$$n(\lambda) = \sqrt{1 + \frac{1.40513\,\lambda^2}{\lambda^2 - 0.0103408} + \frac{0.140988\,\lambda^2}{\lambda^2 - 0.0561355} + \frac{1.52293\,\lambda^2}{\lambda^2 - 149.777}}$$
Thermal Properties
| TCE -30/70°C (10-6/K) | 7.4 |
|---|---|
| TCE 100/300°C (10-6/K) | 9.5 |
| Thermal Conductivity (W/mK) | — |
| Heat Capacity (J/gK) | — |
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[1.01 \times 10^{-7} + 2(1.6 \times 10^{-8})\,\Delta T + 3(-4.83 \times 10^{-11})\,\Delta T^2 + \frac{7.01 \times 10^{-7} + 2(7.11 \times 10^{-10})\,\Delta T}{\lambda - 0.277}\right]
\Delta T = T - T_0, \quad T_0 = 20\,°\text{C}$$
Physical Properties
| Density (g/cm³) | 2.68 |
|---|---|
| Relative Cost | 2.9 |
Mechanical Properties
| Young's Modulus (GPa) | 79.8 |
|---|---|
| Poisson's Ratio | 0.23 |
| Knoop Hardness (kgf/mm²) | 604.0 |
Chemical Resistance
| Climatic Resistance | 1 |
|---|---|
| Stain Resistance | — |
| Acid Resistance | — |
| Alkali Resistance | — |
| Phosphate Resistance | — |