BAF7 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) | 1.608013 |
|---|---|
| Abbe Number (Vd) | 46.212035 |
| Dispersion Formula | Schott |
| Wavelength Range | 0.334 — 2.325 µm |
$$n(\lambda) = \sqrt{2.53022 - 0.00763692\,\lambda^2 + 0.019461\,\lambda^{-2} + 7.99363 \times 10^{-5}\,\lambda^{-4} + 4.71544 \times 10^{-5}\,\lambda^{-6} - 8.47427 \times 10^{-7}\,\lambda^{-8}}$$
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 | |
|---|---|---|---|---|
| H-BAF6 | CDGM | 1.60801 | 46.202418 | |
| BAF52 | Schott | 1.608589 | 46.44241 | |
| N-BAF52 | Schott | 1.60863 | 46.6 | |
| K-LCV161(M) | Sumita | 1.61477 | 45.6 | |
| KZFSN9 | Schott | 1.598557 | 46.903842 | |
| K-LCV161 | Sumita | 1.6182 | 45.3 | |
| N-KZFS4 | Schott | 1.61336 | 44.49 | |
| N-KZFS4HT | Schott | 1.61336 | 44.49 | |
| C13-44 | Corning | 1.613394 | 44.386543 | |
| KZFS1 | Schott | 1.613099 | 44.339473 |
Similar Glasses (Hoya)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| ADF4 | Hoya | 1.612498 | 44.873885 | |
| ADF10 | Hoya | 1.613102 | 44.361138 | |
| E-ADF10 | Hoya | 1.6131 | 44.36 | |
| ADF40 | Hoya | 1.6134 | 44.290061 | |
| LAF45 | Hoya | 1.61396 | 44.29 | |
| M-BAF41 | Hoya | 1.605777 | 43.98709 | |
| E-BAF8 | Hoya | 1.62374 | 47.05 | |
| BAF8 | Hoya | 1.623739 | 47.054197 | |
| BAF4 | Hoya | 1.60562 | 43.87626 | |
| BAF5 | Hoya | 1.607292 | 49.336899 |