H-ZLAF55D by CDGM
Preferred
Very 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) | 1.83481 |
|---|---|
| Abbe Number (Vd) | 42.725177 |
| Dispersion Formula | Sellmeier |
| Wavelength Range | 0.365 — 2.325 µm |
$$n(\lambda) = \sqrt{1 + \frac{0.227765\,\lambda^2}{\lambda^2 - 0.0412222} + \frac{2.04687\,\lambda^2}{\lambda^2 - 0.0107489} + \frac{1.20889\,\lambda^2}{\lambda^2 - 87.8519}}$$
Thermal Properties
| TCE -30/70°C (10-6/K) | 6.4 |
|---|---|
| TCE 100/300°C (10-6/K) | 8.1 |
| Thermal Conductivity (W/mK) | 0.722 |
| Heat Capacity (J/gK) | 0.459 |
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[1.05 \times 10^{-6} + 2(1.59 \times 10^{-8})\,\Delta T + 3(-2.67 \times 10^{-11})\,\Delta T^2 + \frac{6.94 \times 10^{-7} + 2(2.64 \times 10^{-10})\,\Delta T}{\lambda - 0.221}\right]
\Delta T = T - T_0, \quad T_0 = 20\,°\text{C}$$
Physical Properties
| Density (g/cm³) | 4.56 |
|---|---|
| Relative Cost | 6.2 |
Mechanical Properties
| Young's Modulus (GPa) | 123.59 |
|---|---|
| Poisson's Ratio | 0.299 |
| Knoop Hardness (kgf/mm²) | 684.0 |
Chemical Resistance
| Climatic Resistance | 1 |
|---|---|
| Stain Resistance | — |
| Acid Resistance | — |
| Alkali Resistance | — |
| Phosphate Resistance | — |
Similar Glasses (Other Manufacturers)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| S-LAH55V | Ohara | 1.834807 | 42.725324 | |
| LAH55 | Ohara | 1.834807 | 42.72372 | |
| TAFD5F | Hoya | 1.83481 | 42.72 | |
| TAFD5G | Hoya | 1.83481 | 42.72 | |
| S-LAH55 | Ohara | 1.834807 | 42.713673 | |
| S-LAH55VS | Ohara | 1.834809 | 42.74368 | |
| K-LaSFn8W | Sumita | 1.8349 | 42.7 | |
| LASFN8 | Sumita | 1.835 | 42.7 | |
| K-LaSFn8 | Sumita | 1.835 | 42.7 | |
| TAFD5 | Hoya | 1.835 | 42.984244 |
Similar Glasses (CDGM)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| H-ZLAF55C | CDGM | 1.83481 | 42.711575 | |
| 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 |