BAF11 by Sumita
Obsolete
Very Rare
Environmentally Dangerous
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) | 1.66672 |
|---|---|
| Abbe Number (Vd) | 48.4 |
| Dispersion Formula | Schott |
| Wavelength Range | 0.27 — 2.0 µm |
$$n(\lambda) = \sqrt{2.7202 - 0.0101404\,\lambda^2 + 0.0195329\,\lambda^{-2} + 0.000621569\,\lambda^{-4} - 3.17016 \times 10^{-5}\,\lambda^{-6} + 3.31545 \times 10^{-6}\,\lambda^{-8}}$$
Thermal Properties
| TCE -30/70°C (10-6/K) | — |
|---|---|
| TCE 100/300°C (10-6/K) | 8.6 |
| Thermal Conductivity (W/mK) | — |
| Heat Capacity (J/gK) | — |
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[0 + 2(0)\,\Delta T + 3(0)\,\Delta T^2 + \frac{0 + 2(0)\,\Delta T}{\lambda - 0}\right]
\Delta T = T - T_0, \quad T_0 = 20\,°\text{C}$$
Physical Properties
| Density (g/cm³) | 3.83 |
|---|---|
| Relative Cost | — |
Mechanical Properties
| Young's Modulus (GPa) | — |
|---|---|
| Poisson's Ratio | — |
| Knoop Hardness (kgf/mm²) | — |
Chemical Resistance
| Climatic Resistance | 1 |
|---|---|
| Stain Resistance | — |
| Acid Resistance | 4 |
| Alkali Resistance | — |
| Phosphate Resistance | — |
Similar Glasses (Other Manufacturers)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| BAFN11 | Schott | 1.666721 | 48.421391 | |
| H-ZBAF16 | CDGM | 1.66672 | 48.421731 | |
| C67-48 | Corning | 1.666698 | 48.434395 | |
| S-BAH11 | Ohara | 1.666718 | 48.325247 | |
| BAH11 | Ohara | 1.666718 | 48.317266 | |
| BAF11 | Hoya | 1.66672 | 48.3 | |
| BAF21 | Hoya | 1.66422 | 48.941939 | |
| CALCITE | Generic Birefringent | 1.658643 | 48.541403 | |
| CALCITE | Generic IR | 1.658643 | 48.541403 | |
| BAH10 | Ohara | 1.670029 | 47.253429 |