H-ZLAF68C by CDGM
Preferred
Common
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) | 1.883 |
|---|---|
| Abbe Number (Vd) | 40.847465 |
| Dispersion Formula | Sellmeier |
| Wavelength Range | 0.365 — 2.325 µm |
$$n(\lambda) = \sqrt{1 + \frac{1.58834\,\lambda^2}{\lambda^2 - 0.00689365} + \frac{0.851761\,\lambda^2}{\lambda^2 - 0.028829} + \frac{1.58277\,\lambda^2}{\lambda^2 - 125.036}}$$
Thermal Properties
| TCE -30/70°C (10-6/K) | 7.0 |
|---|---|
| TCE 100/300°C (10-6/K) | 8.7 |
| Thermal Conductivity (W/mK) | — |
| Heat Capacity (J/gK) | — |
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[6.22 \times 10^{-7} + 2(1.34 \times 10^{-8})\,\Delta T + 3(-3.94 \times 10^{-11})\,\Delta T^2 + \frac{8.98 \times 10^{-7} + 2(8.81 \times 10^{-10})\,\Delta T}{\lambda - 0.175}\right]
\Delta T = T - T_0, \quad T_0 = 20\,°\text{C}$$
Physical Properties
| Density (g/cm³) | 5.34 |
|---|---|
| Relative Cost | 22.7 |
Mechanical Properties
| Young's Modulus (GPa) | 124.61 |
|---|---|
| Poisson's Ratio | 0.307 |
| Knoop Hardness (kgf/mm²) | 678.0 |
Chemical Resistance
| Climatic Resistance | 1 |
|---|---|
| Stain Resistance | — |
| Acid Resistance | — |
| Alkali Resistance | — |
| Phosphate Resistance | — |
Similar Glasses (Other Manufacturers)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| TAFD30 | Hoya | 1.883 | 40.81 | |
| K-LaSFn17 | Sumita | 1.883 | 40.8 | |
| LASFN17 | Sumita | 1.883 | 40.9 | |
| LAH58 | Ohara | 1.882997 | 40.778667 | |
| S-LAH58 | Ohara | 1.882997 | 40.765107 | |
| N-LASF31A | Schott | 1.883 | 40.76 | |
| N-LASF31 | Schott | 1.88067 | 41.01 | |
| LASFN31 | Schott | 1.880669 | 41.009774 | |
| TAFD33 | Hoya | 1.881 | 40.14 | |
| TAFD32 | Hoya | 1.8707 | 40.73 |
Similar Glasses (CDGM)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| H-ZLAF68B | CDGM | 1.883004 | 40.806875 | |
| H-ZLAF73 | CDGM | 1.881 | 40.161331 | |
| H-ZLAF68NB | CDGM | 1.883 | 39.235474 | |
| H-ZLAF68N | CDGM | 1.883 | 39.2182 | |
| D-ZLAF67 | CDGM | 1.88385 | 37.198899 | |
| D-ZLAF67-25 | CDGM | 1.88259 | 37.185491 | |
| D-ZLAF85LS | CDGM | 1.8545 | 40.593546 | |
| D-ZLAF85L | CDGM | 1.8537 | 40.579411 | |
| D-ZLAF85LS-25 | CDGM | 1.85344 | 40.557917 | |
| D-ZLAF85L-25 | CDGM | 1.8526 | 40.534071 |