BAM12 by Ohara
Obsolete
Unknown
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) | 1.6393 |
|---|---|
| Abbe Number (Vd) | 44.878032 |
| Dispersion Formula | Schott |
| Wavelength Range | 0.365 — 0.9 µm |
$$n(\lambda) = \sqrt{2.62858 - 0.00908587\,\lambda^2 + 0.0195519\,\lambda^{-2} + 0.000669893\,\lambda^{-4} - 2.51015 \times 10^{-5}\,\lambda^{-6} + 3.04778 \times 10^{-6}\,\lambda^{-8}}$$
Thermal Properties
| TCE -30/70°C (10-6/K) | 7.6 |
|---|---|
| TCE 100/300°C (10-6/K) | 8.7 |
| Thermal Conductivity (W/mK) | — |
| Heat Capacity (J/gK) | — |
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[3.9903 \times 10^{-6} + 2(0)\,\Delta T + 3(0)\,\Delta T^2 + \frac{0 + 2(0)\,\Delta T}{\lambda - 0}\right]
\Delta T = T - T_0, \quad T_0 = 25\,°\text{C}$$
Physical Properties
| Density (g/cm³) | 3.8 |
|---|---|
| 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 | |
|---|---|---|---|---|
| BAF12 | Sumita | 1.6393 | 45.0 | |
| BAF12 | Hoya | 1.639302 | 45.070071 | |
| BAF23 | Hoya | 1.652238 | 44.922169 | |
| BAF51 | Schott | 1.652242 | 44.930457 | |
| N-BAF51 | Schott | 1.65224 | 44.96 | |
| C48-46 | Corning | 1.647747 | 46.227993 | |
| ATF4 | Hoya | 1.653757 | 44.723072 | |
| C38-42 | Corning | 1.637752 | 42.433862 | |
| N-KZFS11 | Schott | 1.63775 | 42.41 | |
| K-LCV161 | Sumita | 1.6182 | 45.3 |
Similar Glasses (Ohara)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| S-BAM12 | Ohara | 1.6393 | 44.872804 | |
| BAM9 | Ohara | 1.643279 | 47.850606 | |
| BAM8 | Ohara | 1.62374 | 47.09722 | |
| S-NBM51 | Ohara | 1.613397 | 44.267706 | |
| BPM51 | Ohara | 1.613397 | 44.266767 | |
| BPM4 | Ohara | 1.6134 | 43.841533 | |
| BAH13 | Ohara | 1.668921 | 44.987354 | |
| BPH35 | Ohara | 1.644496 | 40.817749 | |
| S-NBM52 | Ohara | 1.622049 | 41.079324 | |
| BAM4 | Ohara | 1.60562 | 43.723021 |