K-PSKn2 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) | 1.618 |
|---|---|
| Abbe Number (Vd) | 63.4 |
| Dispersion Formula | Schott |
| Wavelength Range | 0.36 — 1.55 µm |
$$n(\lambda) = \sqrt{2.57889 - 0.0103814\,\lambda^2 + 0.0142336\,\lambda^{-2} + 0.00012483\,\lambda^{-4} + 1.74777 \times 10^{-5}\,\lambda^{-6} - 9.62048 \times 10^{-7}\,\lambda^{-8}}$$
Thermal Properties
| TCE -30/70°C (10-6/K) | 7.9 |
|---|---|
| TCE 100/300°C (10-6/K) | 9.9 |
| Thermal Conductivity (W/mK) | — |
| Heat Capacity (J/gK) | — |
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[-9.04 \times 10^{-6} + 2(1.1 \times 10^{-8})\,\Delta T + 3(-2.48 \times 10^{-10})\,\Delta T^2 + \frac{3.21 \times 10^{-7} + 2(4.56 \times 10^{-10})\,\Delta T}{\lambda - 0.226}\right]
\Delta T = T - T_0, \quad T_0 = 20\,°\text{C}$$
Physical Properties
| Density (g/cm³) | 3.63 |
|---|---|
| Relative Cost | — |
Mechanical Properties
| Young's Modulus (GPa) | — |
|---|---|
| Poisson's Ratio | — |
| Knoop Hardness (kgf/mm²) | — |
Chemical Resistance
| Climatic Resistance | 1 |
|---|---|
| Stain Resistance | — |
| Acid Resistance | 5 |
| Alkali Resistance | — |
| Phosphate Resistance | — |
Similar Glasses (Other Manufacturers)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| PCD4 | Hoya | 1.618 | 63.4 | |
| H-ZPK1A | CDGM | 1.618 | 63.392702 | |
| N-PSK53A | Schott | 1.618 | 63.39 | |
| PHM52 | Ohara | 1.617999 | 63.386441 | |
| S-PHM52 | Ohara | 1.618 | 63.333504 | |
| S-PHM52Q | Ohara | 1.617999 | 63.321449 | |
| N-PSK53 | Schott | 1.62014 | 63.48 | |
| PSK53A | Schott | 1.620141 | 63.480444 | |
| PCD53 | Hoya | 1.620139 | 63.516754 | |
| D-ZPK1A-25 | CDGM | 1.61999 | 63.763831 |
Similar Glasses (Sumita)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| PSKN2 | Sumita | 1.618 | 63.4 | |
| K-LaFK60(M) | Sumita | 1.62848 | 63.2 | |
| LAFK60 | Sumita | 1.63246 | 63.8 | |
| K-LaFK60 | Sumita | 1.63246 | 63.8 | |
| K-LaFK63(M) | Sumita | 1.63463 | 63.0 | |
| K-LaFK63 | Sumita | 1.6386 | 63.4 | |
| SK16 | Sumita | 1.62041 | 60.3 | |
| K-SK16RH | Sumita | 1.62041 | 60.3 | |
| SK16RH | Sumita | 1.62041 | 60.3 | |
| K-PSK300 | Sumita | 1.5995 | 65.6 |