CF4 by Hoya
Obsolete
Unknown
Environmentally Dangerous
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) | 1.533577 |
|---|---|
| Abbe Number (Vd) | 51.545117 |
| Dispersion Formula | Schott |
| Wavelength Range | 0.334 — 2.325 µm |
$$n(\lambda) = \sqrt{2.31113 - 0.00785889\,\lambda^2 + 0.0146783\,\lambda^{-2} - 3.41761 \times 10^{-6}\,\lambda^{-4} + 4.43909 \times 10^{-5}\,\lambda^{-6} - 1.8169 \times 10^{-6}\,\lambda^{-8}}$$
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 | |
|---|---|---|---|---|
| KF4 | Sumita | 1.53358 | 51.6 | |
| KZFN2 | Schott | 1.52944 | 51.626811 | |
| SSL2 | Ohara | 1.529441 | 51.722557 | |
| KZF2 | Sumita | 1.52944 | 51.8 | |
| B29-52 | Corning | 1.528998 | 51.838713 | |
| KF2 | Sumita | 1.5263 | 51.0 | |
| N-KF9 | Schott | 1.52346 | 51.54 | |
| KF9 | Schott | 1.523412 | 51.492996 | |
| ADP | Generic Birefringent | 1.523454 | 52.25678 | |
| KF5 | Sumita | 1.5231 | 50.9 |