FPL51 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) | 1.496999 |
|---|---|
| Abbe Number (Vd) | 81.61466 |
| Dispersion Formula | Schott |
| Wavelength Range | 0.334 — 2.325 µm |
$$n(\lambda) = \sqrt{2.21844 - 0.00593475\,\lambda^2 + 0.00807649\,\lambda^{-2} + 0.00016581\,\lambda^{-4} - 8.05533 \times 10^{-6}\,\lambda^{-6} + 3.58395 \times 10^{-7}\,\lambda^{-8}}$$
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-FK61 | CDGM | 1.497 | 81.612838 | |
| H-FK61GTI | CDGM | 1.497 | 81.612838 | |
| D-FK61 | CDGM | 1.497 | 81.611615 | |
| FCD1 | Hoya | 1.497 | 81.61 | |
| N-PK52A | Schott | 1.497 | 81.61 | |
| D-FK61A | CDGM | 1.497 | 81.605419 | |
| H-FK61B | CDGM | 1.497 | 81.605419 | |
| N-PK52 | Schott | 1.497005 | 81.633263 | |
| FCD1B | Hoya | 1.4971 | 81.56 | |
| M-FCD1 | Hoya | 1.4971 | 81.56 |
Similar Glasses (Ohara)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| 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-FPL52 | Ohara | 1.455999 | 90.288026 | |
| FPL52 | Ohara | 1.455999 | 90.31888 | |
| S-FSL5Y | Ohara | 1.48749 | 70.354425 | |
| S-FSL5 | Ohara | 1.48749 | 70.236252 | |
| FSL5 | Ohara | 1.48749 | 70.21026 | |
| APL1 | Ohara | 1.517277 | 69.563209 |