FSL5 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) | 1.48749 |
|---|---|
| Abbe Number (Vd) | 70.21026 |
| Dispersion Formula | Schott |
| Wavelength Range | 0.334 — 2.325 µm |
$$n(\lambda) = \sqrt{2.1898 - 0.00987154\,\lambda^2 + 0.00813796\,\lambda^{-2} + 0.000424317\,\lambda^{-4} - 4.3722 \times 10^{-5}\,\lambda^{-6} + 2.30058 \times 10^{-6}\,\lambda^{-8}}$$
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 | |
|---|---|---|---|---|
| FK5 | Sumita | 1.48749 | 70.4 | |
| K-FK5 | Sumita | 1.48749 | 70.4 | |
| FK5 | Schott | 1.48749 | 70.405771 | |
| N-FK5 | Schott | 1.48749 | 70.41 | |
| D-QK3L-25 | CDGM | 1.48687 | 70.417086 | |
| FC5 | Hoya | 1.48749 | 70.44 | |
| H-QK3LGTI | CDGM | 1.48749 | 70.440487 | |
| D-QK3L | CDGM | 1.48749 | 70.440487 | |
| H-QK3L | CDGM | 1.48749 | 70.440487 | |
| FK5HTi | Schott | 1.48748 | 70.47 |
Similar Glasses (Ohara)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| S-FSL5 | Ohara | 1.48749 | 70.236252 | |
| S-FSL5Y | Ohara | 1.48749 | 70.354425 | |
| BSL21 | Ohara | 1.503779 | 66.814545 | |
| S-APL1 | Ohara | 1.517277 | 69.563209 | |
| APL1 | Ohara | 1.517277 | 69.563209 | |
| S-APL | Ohara | 1.517277 | 69.56319 | |
| SK-1310 | Ohara | 1.458663 | 67.854535 | |
| SK-1300 | Ohara | 1.458567 | 67.837244 | |
| FSL3 | Ohara | 1.464499 | 65.938855 | |
| BSL3 | Ohara | 1.498308 | 65.026785 |