D-ZK79 by CDGM
Standard
Rare
Precision Molding
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) | 1.60886 |
|---|---|
| Abbe Number (Vd) | 57.895896 |
| Dispersion Formula | Sellmeier |
| Wavelength Range | 0.302 — 2.325 µm |
$$n(\lambda) = \sqrt{1 + \frac{0.756951\,\lambda^2}{\lambda^2 - 0.00314479} + \frac{0.788924\,\lambda^2}{\lambda^2 - 0.0162552} + \frac{1.1045\,\lambda^2}{\lambda^2 - 112.96}}$$
Thermal Properties
| TCE -30/70°C (10-6/K) | 8.1 |
|---|---|
| TCE 100/300°C (10-6/K) | 9.9 |
| Thermal Conductivity (W/mK) | — |
| Heat Capacity (J/gK) | — |
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[6.7 \times 10^{-7} + 2(1.89 \times 10^{-8})\,\Delta T + 3(-2.68 \times 10^{-10})\,\Delta T^2 + \frac{2.21 \times 10^{-7} + 2(1.09 \times 10^{-9})\,\Delta T}{\lambda - 0.312}\right]
\Delta T = T - T_0, \quad T_0 = 20\,°\text{C}$$
Physical Properties
| Density (g/cm³) | 3.19 |
|---|---|
| Relative Cost | 8.7 |
Mechanical Properties
| Young's Modulus (GPa) | 93.01 |
|---|---|
| Poisson's Ratio | 0.262 |
| Knoop Hardness (kgf/mm²) | 586.0 |
Chemical Resistance
| Climatic Resistance | 4 |
|---|---|
| Stain Resistance | — |
| Acid Resistance | — |
| Alkali Resistance | — |
| Phosphate Resistance | — |
Notes
anneal rate:4℃/h
Similar Glasses (Other Manufacturers)
Similar Glasses (CDGM)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| D-ZK79-25 | CDGM | 1.60809 | 57.820851 | |
| H-ZK6 | CDGM | 1.61272 | 58.577083 | |
| H-ZK4 | CDGM | 1.60881 | 58.855991 | |
| H-ZK50 | CDGM | 1.60738 | 56.654511 | |
| H-ZK50GT | CDGM | 1.60738 | 56.654511 | |
| H-ZK21 | CDGM | 1.62299 | 58.120667 | |
| D-ZK21-25 | CDGM | 1.62346 | 58.115078 | |
| H-ZK10L | CDGM | 1.6228 | 56.913492 | |
| D-ZK21 | CDGM | 1.62446 | 58.207924 | |
| H-ZK5 | CDGM | 1.61117 | 55.772437 |