K-PSFn166(M) by Sumita
Standard
Rare
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) | 1.65858 |
|---|---|
| Abbe Number (Vd) | 34.4 |
| Dispersion Formula | Schott |
| Wavelength Range | 0.36 — 1.55 µm |
$$n(\lambda) = \sqrt{2.67282 - 0.0108285\,\lambda^2 + 0.0253052\,\lambda^{-2} + 0.00103937\,\lambda^{-4} - 2.97955 \times 10^{-5}\,\lambda^{-6} + 7.36528 \times 10^{-6}\,\lambda^{-8}}$$
Thermal Properties
| TCE -30/70°C (10-6/K) | 9.1 |
|---|---|
| TCE 100/300°C (10-6/K) | 11.3 |
| Thermal Conductivity (W/mK) | — |
| Heat Capacity (J/gK) | — |
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[-6.43 \times 10^{-6} + 2(1.03 \times 10^{-8})\,\Delta T + 3(-2.4 \times 10^{-10})\,\Delta T^2 + \frac{7.06 \times 10^{-7} + 2(7.03 \times 10^{-10})\,\Delta T}{\lambda - 0.275}\right]
\Delta T = T - T_0, \quad T_0 = 20\,°\text{C}$$
Physical Properties
| Density (g/cm³) | 3.11 |
|---|---|
| Relative Cost | — |
Mechanical Properties
| Young's Modulus (GPa) | — |
|---|---|
| Poisson's Ratio | — |
| Knoop Hardness (kgf/mm²) | — |
Chemical Resistance
| Climatic Resistance | 1 |
|---|---|
| Stain Resistance | — |
| Acid Resistance | 1 |
| Alkali Resistance | — |
| Phosphate Resistance | — |
Similar Glasses (Other Manufacturers)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| FD9 | Hoya | 1.654462 | 33.717017 | |
| SF9 | Schott | 1.654461 | 33.651384 | |
| ZF8 | CDGM | 1.65446 | 33.651201 | |
| H-ZBAF4 | CDGM | 1.66426 | 35.484251 | |
| SF12 | Schott | 1.64831 | 33.841187 | |
| C48-34 | Corning | 1.647992 | 33.943274 | |
| FD12 | Hoya | 1.648308 | 33.793909 | |
| H-ZF1A | CDGM | 1.64769 | 33.887993 | |
| SF2 | Schott | 1.64769 | 33.85 | |
| H-ZF1 | CDGM | 1.64769 | 33.840317 |