H-ZLAF51 by CDGM
Standard
Rare
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) | 1.8045 |
|---|---|
| Abbe Number (Vd) | 39.635248 |
| Dispersion Formula | Sellmeier |
| Wavelength Range | 0.365 — 2.325 µm |
$$n(\lambda) = \sqrt{1 + \frac{1.22431\,\lambda^2}{\lambda^2 - 91.2452} + \frac{0.30259\,\lambda^2}{\lambda^2 - 0.0426068} + \frac{1.86091\,\lambda^2}{\lambda^2 - 0.00987032}}$$
Thermal Properties
| TCE -30/70°C (10-6/K) | 5.2 |
|---|---|
| TCE 100/300°C (10-6/K) | 6.8 |
| Thermal Conductivity (W/mK) | — |
| Heat Capacity (J/gK) | — |
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[7.97 \times 10^{-6} + 2(1.55 \times 10^{-8})\,\Delta T + 3(-3.71 \times 10^{-11})\,\Delta T^2 + \frac{7.79 \times 10^{-7} + 2(9.84 \times 10^{-10})\,\Delta T}{\lambda - 0.233}\right]
\Delta T = T - T_0, \quad T_0 = 20\,°\text{C}$$
Physical Properties
| Density (g/cm³) | 4.41 |
|---|---|
| Relative Cost | 9.6 |
Mechanical Properties
| Young's Modulus (GPa) | 111.42 |
|---|---|
| Poisson's Ratio | 0.307 |
| Knoop Hardness (kgf/mm²) | 664.0 |
Chemical Resistance
| Climatic Resistance | 1 |
|---|---|
| Stain Resistance | — |
| Acid Resistance | — |
| Alkali Resistance | — |
| Phosphate Resistance | — |
Similar Glasses (Other Manufacturers)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| NBFD3 | Hoya | 1.8045 | 39.64 | |
| S-LAH63 | Ohara | 1.804398 | 39.58615 | |
| LAH63 | Ohara | 1.804398 | 39.581254 | |
| S-LAH63Q | Ohara | 1.8044 | 39.580489 | |
| K-LaSFn2 | Sumita | 1.805 | 39.6 | |
| LASFN2 | Sumita | 1.805 | 39.6 | |
| L-LAH81 | Ohara | 1.8061 | 40.400738 | |
| P-LASF50 | Schott | 1.8086 | 40.46 | |
| N-LASF43 | Schott | 1.8061 | 40.61 | |
| L-LAH84 | Ohara | 1.80835 | 40.548503 |
Similar Glasses (CDGM)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| H-ZLAF52 | CDGM | 1.806099 | 40.945389 | |
| H-ZLAF52A | CDGM | 1.8061 | 41.016887 | |
| D-ZLAF81-25 | CDGM | 1.80757 | 40.97334 | |
| D-ZLAF52LA-25 | CDGM | 1.80882 | 40.970313 | |
| D-ZLAF81 | CDGM | 1.8088 | 40.999441 | |
| D-ZLAF52LA | CDGM | 1.81 | 40.992863 | |
| H-LAF54 | CDGM | 1.799519 | 42.253294 | |
| D-ZLAF61-25 | CDGM | 1.82131 | 42.674895 | |
| D-ZLAF61 | CDGM | 1.82241 | 42.714541 | |
| H-LAF7 | CDGM | 1.78179 | 37.092107 |