C20-60 by Corning
Standard
Unknown
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) | 1.620406 |
|---|---|
| Abbe Number (Vd) | 60.332956 |
| Dispersion Formula | Schott |
| Wavelength Range | 0.29 — 1.8 µm |
$$n(\lambda) = \sqrt{2.58264 - 0.00988724\,\lambda^2 + 0.0161264\,\lambda^{-2} - 0.000163847\,\lambda^{-4} + 5.48403 \times 10^{-5}\,\lambda^{-6} - 2.63657 \times 10^{-6}\,\lambda^{-8}}$$
Thermal Properties
| TCE -30/70°C (10-6/K) | 6.9 |
|---|---|
| TCE 100/300°C (10-6/K) | 7.6 |
| Thermal Conductivity (W/mK) | — |
| Heat Capacity (J/gK) | — |
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[9.6 \times 10^{-7} + 2(0)\,\Delta T + 3(0)\,\Delta T^2 + \frac{0 + 2(0)\,\Delta T}{\lambda - 0}\right]
\Delta T = T - T_0, \quad T_0 = 20\,°\text{C}$$
Physical Properties
| Density (g/cm³) | 3.6 |
|---|---|
| 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 | — |
Similar Glasses (Other Manufacturers)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| H-ZK9B | CDGM | 1.62041 | 60.339343 | |
| SK16 | Schott | 1.62041 | 60.323649 | |
| N-SK16 | Schott | 1.62041 | 60.32 | |
| BACD16 | Hoya | 1.62041 | 60.35 | |
| K-SK16RH | Sumita | 1.62041 | 60.3 | |
| SK16RH | Sumita | 1.62041 | 60.3 | |
| SK16 | Sumita | 1.62041 | 60.3 | |
| H-ZK9A | CDGM | 1.620412 | 60.368242 | |
| S-BSM16 | Ohara | 1.620411 | 60.289582 | |
| H-TK9 | CDGM | 1.62075 | 60.299778 |
Similar Glasses (Corning)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| C09-59 | Corning | 1.608756 | 59.036803 | |
| C13-58 | Corning | 1.612693 | 58.570371 | |
| C23-58 | Corning | 1.623004 | 58.102071 | |
| C41-60 | Corning | 1.640495 | 60.130957 | |
| C23-57 | Corning | 1.622801 | 56.922436 | |
| C42-58 | Corning | 1.642502 | 58.061633 | |
| C04-64 | Corning | 1.603507 | 63.401916 | |
| C13-56 | Corning | 1.613498 | 56.417725 | |
| C07-57 | Corning | 1.607504 | 56.610495 | |
| B89-61 | Corning | 1.588998 | 61.218914 |