MC-TAF101-100 by Hoya
Preferred
Very Common
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) | 1.76902 |
|---|---|
| Abbe Number (Vd) | 49.29 |
| Dispersion Formula | Schott |
| Wavelength Range | 0.36501 — 1.5296 µm |
$$n(\lambda) = \sqrt{3.05916 - 0.0136047\,\lambda^2 + 0.0246243\,\lambda^{-2} + 0.000418342\,\lambda^{-4} + 2.53619 \times 10^{-6}\,\lambda^{-6} + 7.99808 \times 10^{-7}\,\lambda^{-8}}$$
Thermal Properties
| TCE -30/70°C (10-6/K) | 5.7 |
|---|---|
| TCE 100/300°C (10-6/K) | 7.4 |
| Thermal Conductivity (W/mK) | — |
| Heat Capacity (J/gK) | — |
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[4.45 \times 10^{-6} + 2(9.76 \times 10^{-9})\,\Delta T + 3(-2.67 \times 10^{-11})\,\Delta T^2 + \frac{8.45 \times 10^{-7} + 2(6.47 \times 10^{-10})\,\Delta T}{\lambda - 4.44 \times 10^{-90}}\right]
\Delta T = T - T_0, \quad T_0 = 23\,°\text{C}$$
Physical Properties
| Density (g/cm³) | 4.56 |
|---|---|
| Relative Cost | — |
Mechanical Properties
| Young's Modulus (GPa) | — |
|---|---|
| Poisson's Ratio | — |
| Knoop Hardness (kgf/mm²) | — |
Chemical Resistance
| Climatic Resistance | 1 |
|---|---|
| Stain Resistance | 2 |
| Acid Resistance | 4 |
| Alkali Resistance | — |
| Phosphate Resistance | — |
Notes
Preforms for Precision molding
Similar Glasses (Other Manufacturers)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| D-LAF050 | CDGM | 1.76842 | 49.28216 | |
| D-LAF050-25 | CDGM | 1.76709 | 49.197491 | |
| K-LaFK50(M) | Sumita | 1.76831 | 49.7 | |
| S-LAH66 | Ohara | 1.772499 | 49.598371 | |
| H-LAF50B | CDGM | 1.7725 | 49.598996 | |
| K-LaSFn7 | Sumita | 1.7725 | 49.6 | |
| LASFN7 | Sumita | 1.7725 | 49.6 | |
| LAH66 | Ohara | 1.772499 | 49.60134 | |
| D-LAF50-25 | CDGM | 1.77288 | 49.519338 | |
| N-LAF34 | Schott | 1.7725 | 49.62 |