C79-80 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
No transmission data available.
Optical Properties
| Refractive Index (nd) | 1.458467 |
|---|---|
| Abbe Number (Vd) | 67.795012 |
| Dispersion Formula | Sellmeier |
| Wavelength Range | 0.185 — 1.12 µm |
$$n(\lambda) = \sqrt{1 + \frac{0.68374\,\lambda^2}{\lambda^2 - 0.00460353} + \frac{0.420324\,\lambda^2}{\lambda^2 - 0.0133969} + \frac{0.585027\,\lambda^2}{\lambda^2 - 64.4933}}$$
Thermal Properties
| TCE -30/70°C (10-6/K) | 0.52 |
|---|---|
| TCE 100/300°C (10-6/K) | — |
| Thermal Conductivity (W/mK) | — |
| Heat Capacity (J/gK) | — |
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[0 + 2(0)\,\Delta T + 3(0)\,\Delta T^2 + \frac{0 + 2(0)\,\Delta T}{\lambda - 0}\right]
\Delta T = T - T_0, \quad T_0 = 22\,°\text{C}$$
Physical Properties
| Density (g/cm³) | 2.201 |
|---|---|
| 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 | — |
Notes
Corning 7980 KrF Grade glass
Similar Glasses (Other Manufacturers)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| F_SILICA | Generic IR | 1.458464 | 67.821433 | |
| LITHOSIL-Q | Schott | 1.45844 | 67.83 | |
| SK-1300 | Ohara | 1.458567 | 67.837244 | |
| SK-1310 | Ohara | 1.458663 | 67.854535 | |
| SUPRASIL | Heraeus | 1.458464 | 67.878205 | |
| HOQ | Heraeus | 1.458563 | 67.664757 | |
| HOMOSIL | Heraeus | 1.458563 | 67.664757 | |
| INFRASIL | Heraeus | 1.458563 | 67.664757 | |
| HERASIL | Heraeus | 1.458563 | 67.664757 | |
| KDP-E | Generic Birefringent | 1.468324 | 68.984949 |
Similar Glasses (Corning)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| A63-65 | Corning | 1.464501 | 65.763211 | |
| A88-66 | Corning | 1.487502 | 65.807152 | |
| A87-70 | Corning | 1.487248 | 70.500557 | |
| B10-63 | Corning | 1.509992 | 63.551713 | |
| B18-65 | Corning | 1.518199 | 65.115452 | |
| B16-64 | Corning | 1.516804 | 64.224234 | |
| B11-60 | Corning | 1.510999 | 60.383147 | |
| B19-61 | Corning | 1.519061 | 61.386004 | |
| B18-60 | Corning | 1.518201 | 60.291781 | |
| B23-59 | Corning | 1.522996 | 59.479482 |