K-SKLD200 by Sumita
Preferred
Very Common
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) | 1.5866 |
|---|---|
| Abbe Number (Vd) | 59.0 |
| Dispersion Formula | Schott |
| Wavelength Range | 0.36 — 1.55 µm |
$$n(\lambda) = \sqrt{2.47869 - 0.0109309\,\lambda^2 + 0.0140915\,\lambda^{-2} + 0.000158418\,\lambda^{-4} + 1.12374 \times 10^{-5}\,\lambda^{-6} - 4.97623 \times 10^{-7}\,\lambda^{-8}}$$
Thermal Properties
| TCE -30/70°C (10-6/K) | 7.4 |
|---|---|
| TCE 100/300°C (10-6/K) | 8.8 |
| Thermal Conductivity (W/mK) | — |
| Heat Capacity (J/gK) | — |
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[5.75 \times 10^{-6} + 2(1.47 \times 10^{-8})\,\Delta T + 3(-2.92 \times 10^{-11})\,\Delta T^2 + \frac{5.6 \times 10^{-7} + 2(7.11 \times 10^{-10})\,\Delta T}{\lambda - 0.138}\right]
\Delta T = T - T_0, \quad T_0 = 20\,°\text{C}$$
Physical Properties
| Density (g/cm³) | 2.7 |
|---|---|
| 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 | |
|---|---|---|---|---|
| L-BAL42P | Ohara | 1.58593 | 59.248294 | |
| P-SK57Q1 | Schott | 1.586 | 59.5 | |
| D-ZK2L-25 | CDGM | 1.58625 | 59.524868 | |
| BAL42 | Ohara | 1.583126 | 59.373789 | |
| S-BAL42 | Ohara | 1.583126 | 59.374673 | |
| P-SK57 | Schott | 1.587 | 59.6 | |
| D-ZK2L | CDGM | 1.587 | 59.600321 | |
| D-ZK2 | CDGM | 1.58313 | 59.381686 | |
| L-BAL42 | Ohara | 1.583126 | 59.385694 | |
| D-ZK2-25 | CDGM | 1.58241 | 59.308255 |
Similar Glasses (Sumita)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| K-CSK120(M) | Sumita | 1.58445 | 59.2 | |
| K-SKLD200(M) | Sumita | 1.58355 | 58.8 | |
| SK12 | Sumita | 1.58313 | 59.3 | |
| CSK12 | Sumita | 1.5865 | 59.6 | |
| K-CSK120 | Sumita | 1.587 | 59.6 | |
| CSK120 | Sumita | 1.587 | 59.6 | |
| K-SKLD120(M) | Sumita | 1.58401 | 59.5 | |
| K-SKLD120 | Sumita | 1.5868 | 59.8 | |
| K-SKLD100(M) | Sumita | 1.58773 | 60.4 | |
| K-PSK100(M) | Sumita | 1.58792 | 60.6 |