FPL52 by Ohara
Obsolete
Unknown
Environmentally Dangerous
Refractive Index vs Wavelength
Refractive Index Calculator
dn/dλ vs Wavelength
dn/dλ Calculator
Abbe Number Calculator
Transmission vs Wavelength
No transmission data available.
Optical Properties
| Refractive Index (nd) | 1.455999 |
|---|---|
| Abbe Number (Vd) | 90.31888 |
| Dispersion Formula | Schott |
| Wavelength Range | 0.334 — 2.325 µm |
$$n(\lambda) = \sqrt{2.10249 - 0.00534552\,\lambda^2 + 0.00604699\,\lambda^{-2} + 0.000284964\,\lambda^{-4} - 2.98765 \times 10^{-5}\,\lambda^{-6} + 1.53975 \times 10^{-6}\,\lambda^{-8}}$$
Thermal Properties
| TCE -30/70°C (10-6/K) | — |
|---|---|
| TCE 100/300°C (10-6/K) | — |
| Thermal Conductivity (W/mK) | — |
| Heat Capacity (J/gK) | — |
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[0 + 2(0)\,\Delta T + 3(0)\,\Delta T^2 + \frac{0 + 2(0)\,\Delta T}{\lambda - 0}\right]
\Delta T = T - T_0, \quad T_0 = 25\,°\text{C}$$
Physical Properties
| Density (g/cm³) | — |
|---|---|
| Relative Cost | — |
Mechanical Properties
| Young's Modulus (GPa) | — |
|---|---|
| Poisson's Ratio | — |
| Knoop Hardness (kgf/mm²) | — |
Chemical Resistance
| Climatic Resistance | — |
|---|---|
| Stain Resistance | — |
| Acid Resistance | — |
| Alkali Resistance | — |
| Phosphate Resistance | — |
Similar Glasses (Other Manufacturers)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| H-FK71 | CDGM | 1.4565 | 90.273821 | |
| FCD10 | Hoya | 1.4565 | 90.27 | |
| H-FK71A | CDGM | 1.456498 | 90.470884 | |
| FCD10A | Hoya | 1.4586 | 90.19 | |
| K-PFK90 | Sumita | 1.4588 | 90.0 | |
| K-PFK90(M) | Sumita | 1.45733 | 89.8 | |
| N-FK58 | Schott | 1.456 | 90.9 | |
| FK54 | Schott | 1.437 | 90.702365 | |
| SRF2 | Generic IR | 1.437925 | 91.593259 | |
| LIYF4-E | Generic Birefringent | 1.476472 | 88.935059 |
Similar Glasses (Ohara)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| S-FPL52 | Ohara | 1.455999 | 90.288026 | |
| S-FPL55 | Ohara | 1.43875 | 94.661059 | |
| S-FPL53 | Ohara | 1.43875 | 94.946025 | |
| FPL53 | Ohara | 1.43875 | 94.960437 | |
| FPL51 | Ohara | 1.496999 | 81.61466 | |
| S-FPL51 | Ohara | 1.496999 | 81.545888 | |
| S-FPL51Y | Ohara | 1.497003 | 81.138165 | |
| S-FPM4 | Ohara | 1.52841 | 76.452824 | |
| S-FPM3 | Ohara | 1.53775 | 74.703119 | |
| S-FSL5Y | Ohara | 1.48749 | 70.354425 |