B18-65 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) | 1.518199 |
|---|---|
| Abbe Number (Vd) | 65.115452 |
| Dispersion Formula | Schott |
| Wavelength Range | 0.334 — 2.325 µm |
$$n(\lambda) = \sqrt{2.27572 - 0.00977722\,\lambda^2 + 0.0110557\,\lambda^{-2} + 1.9101 \times 10^{-5}\,\lambda^{-4} + 1.94913 \times 10^{-5}\,\lambda^{-6} - 1.01554 \times 10^{-6}\,\lambda^{-8}}$$
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 | |
|---|---|---|---|---|
| PC2 | Hoya | 1.51821 | 65.160509 | |
| PK2 | Schott | 1.518211 | 65.054286 | |
| BSL22 | Ohara | 1.518206 | 65.039654 | |
| UBK7 | Schott | 1.516801 | 64.289727 | |
| BSL7Y | Ohara | 1.51633 | 64.243778 | |
| BSC7 | Hoya | 1.5168 | 64.2 | |
| H-K9L* | CDGM | 1.5168 | 64.198732 | |
| H-K9LGT | CDGM | 1.5168 | 64.198732 | |
| H-K9L | CDGM | 1.5168 | 64.198732 | |
| H-K9LAGT | CDGM | 1.5168 | 64.198695 |
Similar Glasses (Corning)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| B16-64 | Corning | 1.516804 | 64.224234 | |
| B10-63 | Corning | 1.509992 | 63.551713 | |
| B19-61 | Corning | 1.519061 | 61.386004 | |
| A88-66 | Corning | 1.487502 | 65.807152 | |
| B18-60 | Corning | 1.518201 | 60.291781 | |
| B11-60 | Corning | 1.510999 | 60.383147 | |
| B52-67 | Corning | 1.552198 | 67.059229 | |
| B23-59 | Corning | 1.522996 | 59.479482 | |
| B39-59 | Corning | 1.539505 | 59.712433 | |
| A87-70 | Corning | 1.487248 | 70.500557 |