D-ZLAF61-25 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) | 1.82131 |
|---|---|
| Abbe Number (Vd) | 42.674895 |
| Dispersion Formula | Sellmeier |
| Wavelength Range | 0.365 — 2.325 µm |
$$n(\lambda) = \sqrt{1 + \frac{0.384732\,\lambda^2}{\lambda^2 - 0.0355327} + \frac{1.84241\,\lambda^2}{\lambda^2 - 0.00916903} + \frac{1.21281\,\lambda^2}{\lambda^2 - 95.9092}}$$
Thermal Properties
| TCE -30/70°C (10-6/K) | 6.6 |
|---|---|
| TCE 100/300°C (10-6/K) | 8.5 |
| Thermal Conductivity (W/mK) | — |
| Heat Capacity (J/gK) | — |
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[4.38 \times 10^{-6} + 2(1.46 \times 10^{-8})\,\Delta T + 3(-1.77 \times 10^{-11})\,\Delta T^2 + \frac{7.39 \times 10^{-7} + 2(6.32 \times 10^{-10})\,\Delta T}{\lambda - 0.229}\right]
\Delta T = T - T_0, \quad T_0 = 20\,°\text{C}$$
Physical Properties
| Density (g/cm³) | 4.92 |
|---|---|
| Relative Cost | 24.9 |
Mechanical Properties
| Young's Modulus (GPa) | 118.42 |
|---|---|
| Poisson's Ratio | 0.301 |
| Knoop Hardness (kgf/mm²) | 691.0 |
Chemical Resistance
| Climatic Resistance | 1 |
|---|---|
| Stain Resistance | — |
| Acid Resistance | — |
| Alkali Resistance | — |
| Phosphate Resistance | — |
Notes
anneal rate:25℃/h
Similar Glasses (Other Manufacturers)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| MP-TAFD51-50 | Hoya | 1.8213 | 42.72 | |
| MC-TAFD51-50 | Hoya | 1.8213 | 42.72 | |
| M-TAFD51 | Hoya | 1.8208 | 42.71 | |
| S-LAH55 | Ohara | 1.834807 | 42.713673 | |
| LAH55 | Ohara | 1.834807 | 42.72372 | |
| S-LAH55V | Ohara | 1.834807 | 42.725324 | |
| TAFD5G | Hoya | 1.83481 | 42.72 | |
| TAFD5F | Hoya | 1.83481 | 42.72 | |
| S-LAH55VS | Ohara | 1.834809 | 42.74368 | |
| K-LaSFn8W | Sumita | 1.8349 | 42.7 |
Similar Glasses (CDGM)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| D-ZLAF61 | CDGM | 1.82241 | 42.714541 | |
| H-ZLAF55C | CDGM | 1.83481 | 42.711575 | |
| H-ZLAF55D | CDGM | 1.83481 | 42.725177 | |
| D-ZLAF52LA | CDGM | 1.81 | 40.992863 | |
| D-ZLAF81 | CDGM | 1.8088 | 40.999441 | |
| D-ZLAF52LA-25 | CDGM | 1.80882 | 40.970313 | |
| D-ZLAF81-25 | CDGM | 1.80757 | 40.97334 | |
| H-ZLAF52A | CDGM | 1.8061 | 41.016887 | |
| H-ZLAF52 | CDGM | 1.806099 | 40.945389 | |
| H-LAF54 | CDGM | 1.799519 | 42.253294 |