SK10 by Sumita
Obsolete
Very Rare
Environmentally Dangerous
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) | 1.6228 |
|---|---|
| Abbe Number (Vd) | 56.9 |
| Dispersion Formula | Schott |
| Wavelength Range | 0.27 — 2.0 µm |
$$n(\lambda) = \sqrt{2.58822 - 0.00946304\,\lambda^2 + 0.0161073\,\lambda^{-2} + 0.000200192\,\lambda^{-4} + 7.67431 \times 10^{-6}\,\lambda^{-6} + 7.82501 \times 10^{-9}\,\lambda^{-8}}$$
Thermal Properties
| TCE -30/70°C (10-6/K) | — |
|---|---|
| TCE 100/300°C (10-6/K) | 7.9 |
| Thermal Conductivity (W/mK) | — |
| Heat Capacity (J/gK) | — |
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[0 + 2(0)\,\Delta T + 3(0)\,\Delta T^2 + \frac{0 + 2(0)\,\Delta T}{\lambda - 0}\right]
\Delta T = T - T_0, \quad T_0 = 20\,°\text{C}$$
Physical Properties
| Density (g/cm³) | 3.66 |
|---|---|
| Relative Cost | — |
Mechanical Properties
| Young's Modulus (GPa) | — |
|---|---|
| Poisson's Ratio | — |
| Knoop Hardness (kgf/mm²) | — |
Chemical Resistance
| Climatic Resistance | 1 |
|---|---|
| Stain Resistance | — |
| Acid Resistance | 4 |
| Alkali Resistance | — |
| Phosphate Resistance | — |
Similar Glasses (Other Manufacturers)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| SK10 | Schott | 1.622801 | 56.903777 | |
| BACD10 | Hoya | 1.622799 | 56.906336 | |
| E-BACD10 | Hoya | 1.6228 | 56.91 | |
| H-ZK10L | CDGM | 1.6228 | 56.913492 | |
| C23-57 | Corning | 1.622801 | 56.922436 | |
| N-SK10 | Schott | 1.62278 | 56.98 | |
| S-BSM10 | Ohara | 1.622799 | 57.052723 | |
| BSM10 | Ohara | 1.622799 | 57.063643 | |
| H-ZK10 | CDGM | 1.6221 | 56.709831 | |
| N-SK15 | Schott | 1.62296 | 58.02 |