C42-58 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) | 1.642502 |
|---|---|
| Abbe Number (Vd) | 58.061633 |
| Dispersion Formula | Schott |
| Wavelength Range | 0.32 — 1.8 µm |
$$n(\lambda) = \sqrt{2.65117 - 0.00993274\,\lambda^2 + 0.0169336\,\lambda^{-2} + 4.01068 \times 10^{-5}\,\lambda^{-4} + 3.27022 \times 10^{-5}\,\lambda^{-6} - 1.50306 \times 10^{-6}\,\lambda^{-8}}$$
Thermal Properties
| TCE -30/70°C (10-6/K) | — |
|---|---|
| TCE 100/300°C (10-6/K) | 8.6 |
| 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) | 3.82 |
|---|---|
| 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 | |
|---|---|---|---|---|
| LAK6 | Sumita | 1.6425 | 58.1 | |
| K-LaK6 | Sumita | 1.6425 | 58.1 | |
| LAKN6 | Schott | 1.642499 | 57.962061 | |
| LAC6 | Hoya | 1.642498 | 57.959359 | |
| S-BSM36 | Ohara | 1.642495 | 58.369399 | |
| BSM36 | Ohara | 1.642495 | 58.369399 | |
| S-BSM93 | Ohara | 1.640998 | 56.927542 | |
| BSM93 | Ohara | 1.640998 | 56.927542 | |
| LACL1 | Hoya | 1.640851 | 56.835319 | |
| K-LaK7 | Sumita | 1.6516 | 58.3 |
Similar Glasses (Corning)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| C52-58 | Corning | 1.6516 | 58.511488 | |
| C41-60 | Corning | 1.640495 | 60.130957 | |
| C57-57 | Corning | 1.657503 | 57.198059 | |
| C51-56 | Corning | 1.651124 | 55.895803 | |
| C39-56 | Corning | 1.638505 | 55.504447 | |
| C23-58 | Corning | 1.623004 | 58.102071 | |
| C23-57 | Corning | 1.622801 | 56.922436 | |
| C20-60 | Corning | 1.620406 | 60.332956 | |
| C13-58 | Corning | 1.612693 | 58.570371 | |
| C13-56 | Corning | 1.613498 | 56.417725 |