MP-FCD1-M20 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) | 1.4969 |
|---|---|
| Abbe Number (Vd) | 81.51 |
| Dispersion Formula | Schott |
| Wavelength Range | 0.36501 — 1.5296 µm |
$$n(\lambda) = \sqrt{2.22094 - 0.00748304\,\lambda^2 + 0.00624634\,\lambda^{-2} + 0.000711578\,\lambda^{-4} - 8.22743 \times 10^{-5}\,\lambda^{-6} + 4.04305 \times 10^{-6}\,\lambda^{-8}}$$
Thermal Properties
| TCE -30/70°C (10-6/K) | 12.9 |
|---|---|
| TCE 100/300°C (10-6/K) | 16.3 |
| Thermal Conductivity (W/mK) | — |
| Heat Capacity (J/gK) | — |
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[-1.75 \times 10^{-5} + 2(-5.28 \times 10^{-9})\,\Delta T + 3(2.39 \times 10^{-11})\,\Delta T^2 + \frac{3.52 \times 10^{-7} + 2(1.97 \times 10^{-10})\,\Delta T}{\lambda - 0.186}\right]
\Delta T = T - T_0, \quad T_0 = 23\,°\text{C}$$
Physical Properties
| Density (g/cm³) | 3.64 |
|---|---|
| Relative Cost | — |
Mechanical Properties
| Young's Modulus (GPa) | — |
|---|---|
| Poisson's Ratio | — |
| Knoop Hardness (kgf/mm²) | — |
Chemical Resistance
| Climatic Resistance | 1 |
|---|---|
| Stain Resistance | 4 |
| Acid Resistance | 3 |
| Alkali Resistance | — |
| Phosphate Resistance | — |
Notes
Preforms for Precision molding
Similar Glasses (Other Manufacturers)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| PFK80 | Sumita | 1.497 | 81.5 | |
| K-PFK80 | Sumita | 1.497 | 81.5 | |
| S-FPL51 | Ohara | 1.496999 | 81.545888 | |
| D-FK61A-25 | CDGM | 1.49665 | 81.549116 | |
| D-FK61-25 | CDGM | 1.49653 | 81.531772 | |
| H-FK61B | CDGM | 1.497 | 81.605419 | |
| D-FK61A | CDGM | 1.497 | 81.605419 | |
| N-PK52A | Schott | 1.497 | 81.61 | |
| D-FK61 | CDGM | 1.497 | 81.611615 | |
| H-FK61GTI | CDGM | 1.497 | 81.612838 |