BACD2 by Hoya
Special
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) | 1.60738 |
|---|---|
| Abbe Number (Vd) | 56.72 |
| Dispersion Formula | Schott |
| Wavelength Range | 0.36501 — 1.5296 µm |
$$n(\lambda) = \sqrt{2.53933 - 0.00872079\,\lambda^2 + 0.0159096\,\lambda^{-2} + 8.8163 \times 10^{-5}\,\lambda^{-4} + 2.58766 \times 10^{-5}\,\lambda^{-6} - 1.17335 \times 10^{-6}\,\lambda^{-8}}$$
Thermal Properties
| TCE -30/70°C (10-6/K) | 6.3 |
|---|---|
| TCE 100/300°C (10-6/K) | 7.2 |
| Thermal Conductivity (W/mK) | — |
| Heat Capacity (J/gK) | — |
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[5.25891 \times 10^{-6} + 2(0)\,\Delta T + 3(0)\,\Delta T^2 + \frac{0 + 2(0)\,\Delta T}{\lambda - 0}\right]
\Delta T = T - T_0, \quad T_0 = 23\,°\text{C}$$
Physical Properties
| Density (g/cm³) | 3.53 |
|---|---|
| Relative Cost | — |
Mechanical Properties
| Young's Modulus (GPa) | — |
|---|---|
| Poisson's Ratio | — |
| Knoop Hardness (kgf/mm²) | — |
Chemical Resistance
| Climatic Resistance | 2 |
|---|---|
| Stain Resistance | 3 |
| Acid Resistance | 3 |
| Alkali Resistance | — |
| Phosphate Resistance | — |
Notes
Not in a position to accept new order because of discontinuation.
Similar Glasses (Other Manufacturers)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| SK2 | Sumita | 1.60738 | 56.7 | |
| H-ZK50GT | CDGM | 1.60738 | 56.654511 | |
| H-ZK50 | CDGM | 1.60738 | 56.654511 | |
| SK2 | Schott | 1.607381 | 56.650108 | |
| N-SK2HT | Schott | 1.60738 | 56.65 | |
| N-SK2 | Schott | 1.60738 | 56.65 | |
| BSM2 | Ohara | 1.607379 | 56.815789 | |
| S-BSM2 | Ohara | 1.607379 | 56.816076 | |
| C07-57 | Corning | 1.607504 | 56.610495 | |
| SK1 | Schott | 1.61025 | 56.712386 |
Similar Glasses (Hoya)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| BACD1 | Hoya | 1.610248 | 56.650958 | |
| BACD6 | Hoya | 1.613753 | 56.377856 | |
| BACD8 | Hoya | 1.611168 | 55.774369 | |
| BACD50 | Hoya | 1.607 | 54.982971 | |
| BACD9 | Hoya | 1.614047 | 55.118097 | |
| BACD4 | Hoya | 1.61272 | 58.58 | |
| ADC2 | Hoya | 1.596998 | 55.291198 | |
| BACED4 | Hoya | 1.617652 | 55.15751 | |
| BACD10 | Hoya | 1.622799 | 56.906336 | |
| E-BACD10 | Hoya | 1.6228 | 56.91 |