K-PSK500 by Sumita
Standard
Rare
Precision Molding
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) | 1.55215 |
|---|---|
| Abbe Number (Vd) | 72.0 |
| Dispersion Formula | Schott |
| Wavelength Range | 0.36 — 1.55 µm |
$$n(\lambda) = \sqrt{2.37901 - 0.00678634\,\lambda^2 + 0.0107503\,\lambda^{-2} + 0.000172812\,\lambda^{-4} - 3.90247 \times 10^{-6}\,\lambda^{-6} + 2.28785 \times 10^{-7}\,\lambda^{-8}}$$
Thermal Properties
| TCE -30/70°C (10-6/K) | 10.8 |
|---|---|
| TCE 100/300°C (10-6/K) | 12.9 |
| Thermal Conductivity (W/mK) | — |
| Heat Capacity (J/gK) | — |
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[-1.34 \times 10^{-5} + 2(6.83 \times 10^{-9})\,\Delta T + 3(1.81 \times 10^{-11})\,\Delta T^2 + \frac{3.74 \times 10^{-7} + 2(5.55 \times 10^{-10})\,\Delta T}{\lambda - 0.195}\right]
\Delta T = T - T_0, \quad T_0 = 20\,°\text{C}$$
Physical Properties
| Density (g/cm³) | 3.76 |
|---|---|
| Relative Cost | — |
Mechanical Properties
| Young's Modulus (GPa) | — |
|---|---|
| Poisson's Ratio | — |
| Knoop Hardness (kgf/mm²) | — |
Chemical Resistance
| Climatic Resistance | 1 |
|---|---|
| Stain Resistance | — |
| Acid Resistance | 2 |
| Alkali Resistance | — |
| Phosphate Resistance | — |
Similar Glasses (Other Manufacturers)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| MP-FCD500-20 | Hoya | 1.55352 | 71.72 | |
| MC-FCD500-20 | Hoya | 1.55352 | 71.72 | |
| FCD500 | Hoya | 1.55397 | 71.76 | |
| M-FCD500 | Hoya | 1.55332 | 71.69 | |
| B58-72 | Corning | 1.558086 | 71.998499 | |
| S-FPM5 | Ohara | 1.552 | 70.697068 | |
| B42-73 | Corning | 1.542198 | 73.473057 | |
| QUARTZ | Generic Birefringent | 1.544296 | 70.132045 | |
| ULTRAN30 | Schott | 1.5483 | 74.244488 | |
| D-ZPK7-25 | CDGM | 1.56854 | 71.235367 |
Similar Glasses (Sumita)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| K-PSK500(M) | Sumita | 1.55 | 71.9 | |
| K-GFK70(M) | Sumita | 1.56627 | 71.3 | |
| GFK70 | Sumita | 1.56907 | 71.3 | |
| K-GFK70 | Sumita | 1.56907 | 71.3 | |
| K-PMK155 | Sumita | 1.5582 | 68.2 | |
| K-PMK155(M) | Sumita | 1.55471 | 68.0 | |
| K-PMK30 | Sumita | 1.525 | 70.4 | |
| K-PMK30(M) | Sumita | 1.52002 | 70.2 | |
| K-GFK68(M) | Sumita | 1.58998 | 68.3 | |
| K-PG325 | Sumita | 1.5067 | 70.5 |