H-ZLAF55C by CDGM
Obsolete
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) | 1.83481 |
|---|---|
| Abbe Number (Vd) | 42.711575 |
| Dispersion Formula | Sellmeier |
| Wavelength Range | 0.365 — 2.325 µm |
$$n(\lambda) = \sqrt{1 + \frac{1.89206\,\lambda^2}{\lambda^2 - 0.0092797} + \frac{0.383013\,\lambda^2}{\lambda^2 - 0.0356259} + \frac{1.321\,\lambda^2}{\lambda^2 - 93.6668}}$$
Thermal Properties
| TCE -30/70°C (10-6/K) | 6.2 |
|---|---|
| TCE 100/300°C (10-6/K) | 7.8 |
| Thermal Conductivity (W/mK) | — |
| Heat Capacity (J/gK) | — |
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[1.91 \times 10^{-6} + 2(1.02 \times 10^{-8})\,\Delta T + 3(-6.88 \times 10^{-11})\,\Delta T^2 + \frac{7.48 \times 10^{-7} + 2(2.17 \times 10^{-10})\,\Delta T}{\lambda - 0.194}\right]
\Delta T = T - T_0, \quad T_0 = 20\,°\text{C}$$
Physical Properties
| Density (g/cm³) | 4.73 |
|---|---|
| Relative Cost | 6.2 |
Mechanical Properties
| Young's Modulus (GPa) | 127.79 |
|---|---|
| Poisson's Ratio | 0.299 |
| Knoop Hardness (kgf/mm²) | 722.0 |
Chemical Resistance
| Climatic Resistance | 1 |
|---|---|
| Stain Resistance | — |
| Acid Resistance | — |
| Alkali Resistance | — |
| Phosphate Resistance | — |
Similar Glasses (Other Manufacturers)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| S-LAH55 | Ohara | 1.834807 | 42.713673 | |
| TAFD5F | Hoya | 1.83481 | 42.72 | |
| TAFD5G | Hoya | 1.83481 | 42.72 | |
| LAH55 | Ohara | 1.834807 | 42.72372 | |
| S-LAH55V | Ohara | 1.834807 | 42.725324 | |
| K-LaSFn8W | Sumita | 1.8349 | 42.7 | |
| LASFN8 | Sumita | 1.835 | 42.7 | |
| K-LaSFn8 | Sumita | 1.835 | 42.7 | |
| S-LAH55VS | Ohara | 1.834809 | 42.74368 | |
| TAFD5 | Hoya | 1.835 | 42.984244 |
Similar Glasses (CDGM)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| H-ZLAF55D | CDGM | 1.83481 | 42.725177 | |
| D-ZLAF61 | CDGM | 1.82241 | 42.714541 | |
| D-ZLAF61-25 | CDGM | 1.82131 | 42.674895 | |
| D-ZLAF85LN-25 | CDGM | 1.84443 | 40.067973 | |
| D-ZLAF85LN | CDGM | 1.84558 | 40.094322 | |
| D-ZLAF85L-25 | CDGM | 1.8526 | 40.534071 | |
| D-ZLAF85LS-25 | CDGM | 1.85344 | 40.557917 | |
| D-ZLAF85L | CDGM | 1.8537 | 40.579411 | |
| D-ZLAF85LS | CDGM | 1.8545 | 40.593546 | |
| D-ZLAF85A-25 | CDGM | 1.8511 | 40.055609 |