BAF2 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) | 1.56965 |
|---|---|
| Abbe Number (Vd) | 49.392725 |
| Dispersion Formula | Schott |
| Wavelength Range | 0.334 — 2.325 µm |
$$n(\lambda) = \sqrt{2.41913 - 0.00825587\,\lambda^2 + 0.0148125\,\lambda^{-2} + 0.00063948\,\lambda^{-4} - 3.94014 \times 10^{-5}\,\lambda^{-6} + 2.94212 \times 10^{-6}\,\lambda^{-8}}$$
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 | |
|---|---|---|---|---|
| BAF2 | CDGM | 1.569703 | 49.435926 | |
| H-BAF2 | CDGM | 1.5697 | 49.452646 | |
| BAL2 | Ohara | 1.570989 | 50.797474 | |
| S-BAL2 | Ohara | 1.570989 | 50.799858 | |
| BAF1 | Sumita | 1.5569 | 48.5 | |
| KZFN1 | Schott | 1.551149 | 49.637723 | |
| BAFN6 | Schott | 1.589 | 48.45 | |
| BAL7 | Ohara | 1.58875 | 51.179278 | |
| KZFS6 | Schott | 1.591965 | 48.509579 | |
| N-BAF3 | Schott | 1.58272 | 46.64 |
Similar Glasses (Hoya)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| BAFL2 | Hoya | 1.570989 | 50.858935 | |
| SBF1 | Hoya | 1.551151 | 49.517289 | |
| FEL3 | Hoya | 1.560125 | 47.090971 | |
| BAF6 | Hoya | 1.589003 | 48.543984 | |
| BAF3 | Hoya | 1.58267 | 46.462286 | |
| BAFL3 | Hoya | 1.571348 | 52.982526 | |
| ADF1 | Hoya | 1.564997 | 52.958253 | |
| FEL4 | Hoya | 1.561379 | 45.226718 | |
| BAFL6 | Hoya | 1.589036 | 52.935166 | |
| LAF50 | Hoya | 1.60199 | 50.21 |