E65-40 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) | 1.865 |
|---|---|
| Abbe Number (Vd) | 40.112393 |
| Dispersion Formula | Schott |
| Wavelength Range | 0.35 — 1.8 µm |
$$n(\lambda) = \sqrt{3.37327 - 0.012035\,\lambda^2 + 0.0355784\,\lambda^{-2} + 0.000582926\,\lambda^{-4} + 4.72135 \times 10^{-5}\,\lambda^{-6} + 2.15711 \times 10^{-7}\,\lambda^{-8}}$$
Thermal Properties
| TCE -30/70°C (10-6/K) | 7.0 |
|---|---|
| TCE 100/300°C (10-6/K) | 7.9 |
| 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) | 5.25 |
|---|---|
| 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 | |
|---|---|---|---|---|
| L-LAH83 | Ohara | 1.864 | 40.577742 | |
| TAFD32 | Hoya | 1.8707 | 40.73 | |
| D-ZLAF85LS | CDGM | 1.8545 | 40.593546 | |
| LASFN13 | Sumita | 1.863 | 41.6 | |
| L-LAH85V | Ohara | 1.854 | 40.378368 | |
| L-LAH85 | Ohara | 1.854 | 40.393284 | |
| K-VC185 | Sumita | 1.85375 | 40.6 | |
| D-ZLAF85L | CDGM | 1.8537 | 40.579411 | |
| D-ZLAF85LS-25 | CDGM | 1.85344 | 40.557917 | |
| D-ZLAF85A | CDGM | 1.85222 | 40.10819 |
Similar Glasses (Corning)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| E78-38 | Corning | 1.878005 | 38.494794 | |
| D96-43 | Corning | 1.796195 | 43.217783 | |
| E00-46 | Corning | 1.800001 | 45.608618 | |
| E03-47 | Corning | 1.803002 | 46.408629 | |
| E37-30 | Corning | 1.836406 | 30.205692 | |
| D88-47 | Corning | 1.788001 | 47.412327 | |
| E05-25 | Corning | 1.805093 | 25.506125 | |
| D44-45 | Corning | 1.744001 | 44.818533 | |
| D85-26 | Corning | 1.784994 | 25.902085 | |
| D85-25 | Corning | 1.784752 | 25.799504 |