BAFD2 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) | 1.664457 |
|---|---|
| Abbe Number (Vd) | 35.887705 |
| Dispersion Formula | Schott |
| Wavelength Range | 0.334 — 2.325 µm |
$$n(\lambda) = \sqrt{2.69154 - 0.00771699\,\lambda^2 + 0.0256129\,\lambda^{-2} + 0.000900156\,\lambda^{-4} - 2.49618 \times 10^{-5}\,\lambda^{-6} + 5.76076 \times 10^{-6}\,\lambda^{-8}}$$
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 | |
|---|---|---|---|---|
| BASF2 | Sumita | 1.66446 | 35.9 | |
| BASF2 | Schott | 1.66446 | 35.829357 | |
| BAH22 | Ohara | 1.664459 | 35.812757 | |
| N-BASF2 | Schott | 1.66446 | 36.0 | |
| H-ZBAF4 | CDGM | 1.66426 | 35.484251 | |
| BASF56 | Schott | 1.657149 | 36.735021 | |
| K-PG395 | Sumita | 1.658 | 36.9 | |
| K-PSFn166 | Sumita | 1.663 | 34.4 | |
| K-PSFn166(M) | Sumita | 1.65858 | 34.4 | |
| K-PG395(M) | Sumita | 1.65296 | 36.8 |
Similar Glasses (Hoya)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| ADF405 | Hoya | 1.6765 | 37.477902 | |
| FD9 | Hoya | 1.654462 | 33.717017 | |
| FD19 | Hoya | 1.666797 | 33.059707 | |
| ATF2 | Hoya | 1.65052 | 38.036939 | |
| BAFD4 | Hoya | 1.651278 | 38.312578 | |
| FD12 | Hoya | 1.648308 | 33.793909 | |
| E-FD2 | Hoya | 1.64769 | 33.84 | |
| FD2 | Hoya | 1.647693 | 33.836872 | |
| E-FD7 | Hoya | 1.6398 | 34.57 | |
| FD7 | Hoya | 1.639803 | 34.568909 |