MC-TAF1 by Hoya
Special
Very 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) | 1.7725 |
|---|---|
| Abbe Number (Vd) | 49.46 |
| Dispersion Formula | Schott |
| Wavelength Range | 0.36501 — 1.5296 µm |
$$n(\lambda) = \sqrt{3.07081 - 0.0122769\,\lambda^2 + 0.0245657\,\lambda^{-2} + 0.000474366\,\lambda^{-4} + 5.43262 \times 10^{-7}\,\lambda^{-6} + 6.59767 \times 10^{-7}\,\lambda^{-8}}$$
Thermal Properties
| TCE -30/70°C (10-6/K) | 7.6 |
|---|---|
| TCE 100/300°C (10-6/K) | 9.0 |
| Thermal Conductivity (W/mK) | — |
| Heat Capacity (J/gK) | — |
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[3.46184 \times 10^{-6} + 2(0)\,\Delta T + 3(0)\,\Delta T^2 + \frac{0 + 2(0)\,\Delta T}{\lambda - 0}\right]
\Delta T = T - T_0, \quad T_0 = 23\,°\text{C}$$
Physical Properties
| Density (g/cm³) | 4.83 |
|---|---|
| Relative Cost | — |
Mechanical Properties
| Young's Modulus (GPa) | — |
|---|---|
| Poisson's Ratio | — |
| Knoop Hardness (kgf/mm²) | — |
Chemical Resistance
| Climatic Resistance | 1 |
|---|---|
| Stain Resistance | 1 |
| Acid Resistance | 3 |
| Alkali Resistance | — |
| Phosphate Resistance | — |
Notes
Not in a position to accept new order because of discontinuation.
Similar Glasses (Other Manufacturers)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| D-LAF50-25 | CDGM | 1.77288 | 49.519338 | |
| S-LAH66 | Ohara | 1.772499 | 49.598371 | |
| LAFN28 | Schott | 1.773142 | 49.568242 | |
| H-LAF50B | CDGM | 1.7725 | 49.598996 | |
| LASFN7 | Sumita | 1.7725 | 49.6 | |
| K-LaSFn7 | Sumita | 1.7725 | 49.6 | |
| LAH66 | Ohara | 1.772499 | 49.60134 | |
| N-LAF34 | Schott | 1.7725 | 49.62 | |
| D-LAF50 | CDGM | 1.774 | 49.590362 | |
| K-LaFK50 | Sumita | 1.772 | 50.0 |
Similar Glasses (Hoya)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| M-TAF1 | Hoya | 1.7725 | 49.46 | |
| MC-TAF105 | Hoya | 1.7725 | 49.5 | |
| M-TAF105 | Hoya | 1.7725 | 49.5 | |
| MP-TAF105 | Hoya | 1.7725 | 49.5 | |
| TAF1 | Hoya | 1.7725 | 49.63 | |
| MC-TAF115 | Hoya | 1.77047 | 49.46 | |
| MP-TAF101-100 | Hoya | 1.76902 | 49.29 | |
| MC-TAF101-100 | Hoya | 1.76902 | 49.29 | |
| M-TAF101 | Hoya | 1.76802 | 49.24 | |
| MP-TAF401 | Hoya | 1.77377 | 47.17 |