FTM16 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) | 1.592701 |
|---|---|
| Abbe Number (Vd) | 35.296315 |
| Dispersion Formula | Schott |
| Wavelength Range | 0.334 — 2.325 µm |
$$n(\lambda) = \sqrt{2.47326 - 0.0105249\,\lambda^2 + 0.0198768\,\lambda^{-2} + 0.00131518\,\lambda^{-4} - 9.40649 \times 10^{-5}\,\lambda^{-6} + 1.06161 \times 10^{-5}\,\lambda^{-8}}$$
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)
Similar Glasses (Ohara)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| S-FTM16 | Ohara | 1.592701 | 35.310075 | |
| PBM5 | Ohara | 1.60342 | 38.012915 | |
| S-TIM5 | Ohara | 1.60342 | 38.027347 | |
| PBM3 | Ohara | 1.612929 | 36.994096 | |
| S-TIM3 | Ohara | 1.612929 | 37.005342 | |
| PBM18Y | Ohara | 1.595509 | 38.767114 | |
| PBM4 | Ohara | 1.616588 | 36.632973 | |
| PBM2 | Ohara | 1.620041 | 36.256658 | |
| S-TIM2 | Ohara | 1.620041 | 36.263378 | |
| PBM2Y | Ohara | 1.620041 | 36.269263 |