H-BAK6 by CDGM
Preferred
Medium
Environmentally Friendly
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) | 1.56388 |
|---|---|
| Abbe Number (Vd) | 60.764747 |
| Dispersion Formula | Sellmeier |
| Wavelength Range | 0.302 — 2.325 µm |
$$n(\lambda) = \sqrt{1 + \frac{0.813985\,\lambda^2}{\lambda^2 - 0.00392398} + \frac{0.595734\,\lambda^2}{\lambda^2 - 0.01649} + \frac{1.00704\,\lambda^2}{\lambda^2 - 107.666}}$$
Thermal Properties
| TCE -30/70°C (10-6/K) | 6.0 |
|---|---|
| TCE 100/300°C (10-6/K) | 7.7 |
| Thermal Conductivity (W/mK) | — |
| Heat Capacity (J/gK) | — |
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[1.02 \times 10^{-6} + 2(1.71 \times 10^{-8})\,\Delta T + 3(-1.32 \times 10^{-11})\,\Delta T^2 + \frac{4.2 \times 10^{-7} + 2(2.66 \times 10^{-10})\,\Delta T}{\lambda - 0.209}\right]
\Delta T = T - T_0, \quad T_0 = 20\,°\text{C}$$
Physical Properties
| Density (g/cm³) | 3.05 |
|---|---|
| Relative Cost | 2.2 |
Mechanical Properties
| Young's Modulus (GPa) | 80.63 |
|---|---|
| Poisson's Ratio | 0.24 |
| Knoop Hardness (kgf/mm²) | 506.0 |
Chemical Resistance
| Climatic Resistance | — |
|---|---|
| Stain Resistance | — |
| Acid Resistance | — |
| Alkali Resistance | — |
| Phosphate Resistance | — |
Similar Glasses (Other Manufacturers)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| SK11 | Schott | 1.56384 | 60.798869 | |
| SK11 | Sumita | 1.56384 | 60.8 | |
| N-SK11 | Schott | 1.56384 | 60.8 | |
| BACD11 | Hoya | 1.56384 | 60.83 | |
| BAL41 | Ohara | 1.563839 | 60.695914 | |
| S-BAL41 | Ohara | 1.563839 | 60.666575 | |
| L-PHL1 | Ohara | 1.56455 | 60.818065 | |
| B64-61 | Corning | 1.564005 | 60.964853 | |
| K-PSK11 | Sumita | 1.5658 | 61.0 | |
| P-SK11 | Sumita | 1.5658 | 61.0 |
Similar Glasses (CDGM)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| H-ZK1 | CDGM | 1.56888 | 62.95699 | |
| H-BAK5 | CDGM | 1.56069 | 58.344731 | |
| D-ZK2A-25 | CDGM | 1.58229 | 59.453631 | |
| D-ZK2A | CDGM | 1.58313 | 59.539751 | |
| D-ZK2-25 | CDGM | 1.58241 | 59.308255 | |
| H-ZK2 | CDGM | 1.58313 | 59.460082 | |
| D-ZK2 | CDGM | 1.58313 | 59.381686 | |
| H-BAK4 | CDGM | 1.55248 | 63.36549 | |
| H-BAK3 | CDGM | 1.54678 | 62.776077 | |
| D-ZK2L-25 | CDGM | 1.58625 | 59.524868 |