C38-42 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) | 1.637752 |
|---|---|
| Abbe Number (Vd) | 42.433862 |
| Dispersion Formula | Schott |
| Wavelength Range | 0.32 — 1.8 µm |
$$n(\lambda) = \sqrt{2.62141 - 0.0127992\,\lambda^2 + 0.0210477\,\lambda^{-2} + 0.000491722\,\lambda^{-4} + 2.92949 \times 10^{-6}\,\lambda^{-6} + 1.02623 \times 10^{-6}\,\lambda^{-8}}$$
Thermal Properties
| TCE -30/70°C (10-6/K) | — |
|---|---|
| TCE 100/300°C (10-6/K) | 7.9 |
| Thermal Conductivity (W/mK) | — |
| Heat Capacity (J/gK) | — |
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[6.3 \times 10^{-6} + 2(0)\,\Delta T + 3(0)\,\Delta T^2 + \frac{0 + 2(0)\,\Delta T}{\lambda - 0}\right]
\Delta T = T - T_0, \quad T_0 = 20\,°\text{C}$$
Physical Properties
| Density (g/cm³) | 3.21 |
|---|---|
| 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 | |
|---|---|---|---|---|
| N-KZFS11 | Schott | 1.63775 | 42.41 | |
| BPH35 | Ohara | 1.644496 | 40.817749 | |
| ADF355 | Hoya | 1.6445 | 40.762285 | |
| BASF57 | Schott | 1.651474 | 41.901823 | |
| S-BAM12 | Ohara | 1.6393 | 44.872804 | |
| BAM12 | Ohara | 1.6393 | 44.878032 | |
| S-NBM52 | Ohara | 1.622049 | 41.079324 | |
| BAF12 | Sumita | 1.6393 | 45.0 | |
| BAF12 | Hoya | 1.639302 | 45.070071 | |
| ATF4 | Hoya | 1.653757 | 44.723072 |
Similar Glasses (Corning)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| C55-40 | Corning | 1.6555 | 40.115717 | |
| C16-44 | Corning | 1.616002 | 44.416477 | |
| C51-39 | Corning | 1.650206 | 39.193419 | |
| C13-44 | Corning | 1.613394 | 44.386543 | |
| C48-46 | Corning | 1.647747 | 46.227993 | |
| C06-44 | Corning | 1.605608 | 43.942859 | |
| C24-47 | Corning | 1.624 | 46.940278 | |
| C04-38 | Corning | 1.603499 | 38.110538 | |
| C70-47 | Corning | 1.670005 | 47.112037 | |
| C20-36 | Corning | 1.62001 | 36.30126 |