K-SKLD120(M) 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) | 1.58401 |
|---|---|
| Abbe Number (Vd) | 59.5 |
| Dispersion Formula | Schott |
| Wavelength Range | 0.36 — 1.55 µm |
$$n(\lambda) = \sqrt{2.47209 - 0.0117104\,\lambda^2 + 0.0132926\,\lambda^{-2} + 0.000335384\,\lambda^{-4} - 1.30949 \times 10^{-5}\,\lambda^{-6} + 4.30863 \times 10^{-7}\,\lambda^{-8}}$$
Thermal Properties
| TCE -30/70°C (10-6/K) | 6.4 |
|---|---|
| TCE 100/300°C (10-6/K) | 8.5 |
| Thermal Conductivity (W/mK) | — |
| Heat Capacity (J/gK) | — |
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[4.57 \times 10^{-6} + 2(1.39 \times 10^{-8})\,\Delta T + 3(-1.08 \times 10^{-10})\,\Delta T^2 + \frac{5.35 \times 10^{-7} + 2(5.99 \times 10^{-10})\,\Delta T}{\lambda - 0.138}\right]
\Delta T = T - T_0, \quad T_0 = 20\,°\text{C}$$
Physical Properties
| Density (g/cm³) | 2.64 |
|---|---|
| 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 | |
|---|---|---|---|---|
| D-ZK2A | CDGM | 1.58313 | 59.539751 | |
| H-ZK2 | CDGM | 1.58313 | 59.460082 | |
| M-BACD12 | Hoya | 1.58313 | 59.46 | |
| MP-BACD12 | Hoya | 1.58313 | 59.46 | |
| MC-BACD12 | Hoya | 1.58313 | 59.46 | |
| BACD12 | Hoya | 1.583129 | 59.459639 | |
| SK12 | Schott | 1.583131 | 59.448822 | |
| L-BAL42 | Ohara | 1.583126 | 59.385694 | |
| D-ZK2 | CDGM | 1.58313 | 59.381686 | |
| S-BAL42 | Ohara | 1.583126 | 59.374673 |
Similar Glasses (Sumita)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| SK12 | Sumita | 1.58313 | 59.3 | |
| K-CSK120(M) | Sumita | 1.58445 | 59.2 | |
| CSK12 | Sumita | 1.5865 | 59.6 | |
| K-CSK120 | Sumita | 1.587 | 59.6 | |
| CSK120 | Sumita | 1.587 | 59.6 | |
| K-SKLD120 | Sumita | 1.5868 | 59.8 | |
| K-SKLD200 | Sumita | 1.5866 | 59.0 | |
| K-SKLD200(M) | Sumita | 1.58355 | 58.8 | |
| K-SKLD100(M) | Sumita | 1.58773 | 60.4 | |
| K-PSK100(M) | Sumita | 1.58792 | 60.6 |