BAL50 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
No transmission data available.
Optical Properties
| Refractive Index (nd) | 1.559625 |
|---|---|
| Abbe Number (Vd) | 61.172671 |
| Dispersion Formula | Schott |
| Wavelength Range | 0.334 — 2.325 µm |
$$n(\lambda) = \sqrt{2.39827 - 0.0102228\,\lambda^2 + 0.0121104\,\lambda^{-2} + 0.000377676\,\lambda^{-4} - 2.7339 \times 10^{-5}\,\lambda^{-6} + 1.57019 \times 10^{-6}\,\lambda^{-8}}$$
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 | |
|---|---|---|---|---|
| SK20 | Sumita | 1.55963 | 61.2 | |
| K-PSK11(M) | Sumita | 1.55985 | 61.0 | |
| B64-61 | Corning | 1.564005 | 60.964853 | |
| BACD11 | Hoya | 1.56384 | 60.83 | |
| SK11 | Sumita | 1.56384 | 60.8 | |
| N-SK11 | Schott | 1.56384 | 60.8 | |
| SK11 | Schott | 1.56384 | 60.798869 | |
| H-BAK6 | CDGM | 1.56388 | 60.764747 | |
| K-PSK11 | Sumita | 1.5658 | 61.0 | |
| P-SK11 | Sumita | 1.5658 | 61.0 |
Similar Glasses (Ohara)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| S-BAL50 | Ohara | 1.559625 | 61.172671 | |
| BAL41 | Ohara | 1.563839 | 60.695914 | |
| L-PHL1 | Ohara | 1.56455 | 60.818065 | |
| S-BAL41 | Ohara | 1.563839 | 60.666575 | |
| L-PHL2 | Ohara | 1.5588 | 62.558541 | |
| S-BAL22 | Ohara | 1.568729 | 63.10486 | |
| BAL22 | Ohara | 1.568729 | 63.162358 | |
| BAL15 | Ohara | 1.556711 | 58.689461 | |
| BAL15Y | Ohara | 1.556711 | 58.679177 | |
| S-BAL12 | Ohara | 1.539956 | 59.462478 |