C57-57 by Corning
Obsolete
Unknown
Environmentally Friendly
Refractive Index vs Wavelength
Refractive Index Calculator
dn/dλ vs Wavelength
dn/dλ Calculator
Abbe Number Calculator
Transmission vs Wavelength
No transmission data available.
Optical Properties
| Refractive Index (nd) | 1.657503 |
|---|---|
| Abbe Number (Vd) | 57.198059 |
| Dispersion Formula | Schott |
| Wavelength Range | 0.334 — 2.325 µm |
$$n(\lambda) = \sqrt{2.69889 - 0.010588\,\lambda^2 + 0.0174111\,\lambda^{-2} + 0.000146103\,\lambda^{-4} + 1.97027 \times 10^{-5}\,\lambda^{-6} - 7.63827 \times 10^{-7}\,\lambda^{-8}}$$
Thermal Properties
| TCE -30/70°C (10-6/K) | — |
|---|---|
| TCE 100/300°C (10-6/K) | — |
| 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) | — |
|---|---|
| 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 | |
|---|---|---|---|---|
| LAC11 | Hoya | 1.658296 | 57.262085 | |
| LAK11 | Schott | 1.658302 | 57.261599 | |
| LAK11 | Sumita | 1.6583 | 57.3 | |
| K-LaK11 | Sumita | 1.6583 | 57.3 | |
| S-LAL11 | Ohara | 1.658296 | 57.332589 | |
| LAL11 | Ohara | 1.658296 | 57.332589 | |
| H-LAK1 | CDGM | 1.6595 | 57.34726 | |
| S-LAL54Q | Ohara | 1.651 | 56.238379 | |
| S-LAL54 | Ohara | 1.650996 | 56.163717 | |
| K-LaK7 | Sumita | 1.6516 | 58.3 |
Similar Glasses (Corning)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| C52-58 | Corning | 1.6516 | 58.511488 | |
| C51-56 | Corning | 1.651124 | 55.895803 | |
| C42-58 | Corning | 1.642502 | 58.061633 | |
| C39-56 | Corning | 1.638505 | 55.504447 | |
| C78-56 | Corning | 1.678004 | 55.519168 | |
| C41-60 | Corning | 1.640495 | 60.130957 | |
| C23-57 | Corning | 1.622801 | 56.922436 | |
| C23-58 | Corning | 1.623004 | 58.102071 | |
| C90-55 | Corning | 1.691008 | 54.793839 | |
| C97-56 | Corning | 1.697 | 56.222926 |