BASF5 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) | 1.60323 |
|---|---|
| Abbe Number (Vd) | 42.5 |
| Dispersion Formula | Schott |
| Wavelength Range | 0.27 — 2.0 µm |
$$n(\lambda) = \sqrt{2.51853 - 0.0119792\,\lambda^2 + 0.015787\,\lambda^{-2} + 0.00156145\,\lambda^{-4} - 0.000146548\,\lambda^{-6} + 9.74635 \times 10^{-6}\,\lambda^{-8}}$$
Thermal Properties
| TCE -30/70°C (10-6/K) | — |
|---|---|
| TCE 100/300°C (10-6/K) | 9.6 |
| 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) | 3.18 |
|---|---|
| Relative Cost | — |
Mechanical Properties
| Young's Modulus (GPa) | — |
|---|---|
| Poisson's Ratio | — |
| Knoop Hardness (kgf/mm²) | — |
Chemical Resistance
| Climatic Resistance | 1 |
|---|---|
| Stain Resistance | — |
| Acid Resistance | 1 |
| Alkali Resistance | — |
| Phosphate Resistance | — |
Similar Glasses (Other Manufacturers)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| BAFD5 | Hoya | 1.603232 | 42.391075 | |
| BAM25 | Ohara | 1.60323 | 42.320943 | |
| BAFD16 | Hoya | 1.6 | 42.456745 | |
| GEO2 | Generic IR | 1.608459 | 41.728763 | |
| S-BAM4 | Ohara | 1.60562 | 43.706978 | |
| N-BAF4 | Schott | 1.60568 | 43.72 | |
| BAM4 | Ohara | 1.60562 | 43.723021 | |
| H-BAF5 | CDGM | 1.60562 | 43.875621 | |
| BAF4 | Hoya | 1.60562 | 43.87626 | |
| BAF5 | CDGM | 1.605623 | 43.890292 |