SK13 by Schott
Obsolete
Unknown
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) | 1.591809 |
|---|---|
| Abbe Number (Vd) | 58.300621 |
| Dispersion Formula | Sellmeier |
| Wavelength Range | 0.334 — 2.325 µm |
$$n(\lambda) = \sqrt{1 + \frac{0.922628\,\lambda^2}{\lambda^2 - 0.00461931} + \frac{0.570304\,\lambda^2}{\lambda^2 - 0.0180623} + \frac{0.979881\,\lambda^2}{\lambda^2 - 110.42}}$$
Thermal Properties
| TCE -30/70°C (10-6/K) | 6.8 |
|---|---|
| TCE 100/300°C (10-6/K) | 7.9 |
| Thermal Conductivity (W/mK) | — |
| Heat Capacity (J/gK) | — |
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[7.07 \times 10^{-7} + 2(1.56 \times 10^{-8})\,\Delta T + 3(-1.88 \times 10^{-10})\,\Delta T^2 + \frac{5.25 \times 10^{-7} + 2(6.99 \times 10^{-10})\,\Delta T}{\lambda - 0.106}\right]
\Delta T = T - T_0, \quad T_0 = 20\,°\text{C}$$
Physical Properties
| Density (g/cm³) | 3.37 |
|---|---|
| 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 | — |
Notes
old
Similar Glasses (Other Manufacturers)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| BACD13 | Hoya | 1.59181 | 58.308789 | |
| K-SKLD200 | Sumita | 1.5866 | 59.0 | |
| K-SKLD200(M) | Sumita | 1.58355 | 58.8 | |
| L-BAL42P | Ohara | 1.58593 | 59.248294 | |
| K-CSK120(M) | Sumita | 1.58445 | 59.2 | |
| D-ZK2L-25 | CDGM | 1.58625 | 59.524868 | |
| CSK120 | Sumita | 1.587 | 59.6 | |
| K-CSK120 | Sumita | 1.587 | 59.6 | |
| D-ZK2L | CDGM | 1.587 | 59.600321 | |
| CSK12 | Sumita | 1.5865 | 59.6 |
Similar Glasses (Schott)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| P-SK57Q1 | Schott | 1.586 | 59.5 | |
| P-SK57 | Schott | 1.587 | 59.6 | |
| SK12 | Schott | 1.583131 | 59.448822 | |
| SK3 | Schott | 1.60881 | 58.921505 | |
| SK7 | Schott | 1.60729 | 59.459272 | |
| P-SK60 | Schott | 1.61035 | 57.9 | |
| N-SK2 | Schott | 1.60738 | 56.65 | |
| N-SK2HT | Schott | 1.60738 | 56.65 | |
| SK2 | Schott | 1.607381 | 56.650108 | |
| N-BAK1 | Schott | 1.5725 | 57.55 |