K-BaSF4 by Sumita
Standard
Rare
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) | 1.65128 |
|---|---|
| Abbe Number (Vd) | 38.3 |
| Dispersion Formula | Schott |
| Wavelength Range | 0.36 — 1.55 µm |
$$n(\lambda) = \sqrt{2.65905 - 0.0119441\,\lambda^2 + 0.0218563\,\lambda^{-2} + 0.00117618\,\lambda^{-4} - 7.8567 \times 10^{-5}\,\lambda^{-6} + 8.14138 \times 10^{-6}\,\lambda^{-8}}$$
Thermal Properties
| TCE -30/70°C (10-6/K) | 7.1 |
|---|---|
| TCE 100/300°C (10-6/K) | 9.2 |
| Thermal Conductivity (W/mK) | — |
| Heat Capacity (J/gK) | — |
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[1.95 \times 10^{-6} + 2(1.4 \times 10^{-8})\,\Delta T + 3(-2.27 \times 10^{-10})\,\Delta T^2 + \frac{6.84 \times 10^{-7} + 2(1.13 \times 10^{-9})\,\Delta T}{\lambda - 0.259}\right]
\Delta T = T - T_0, \quad T_0 = 20\,°\text{C}$$
Physical Properties
| Density (g/cm³) | 2.96 |
|---|---|
| Relative Cost | — |
Mechanical Properties
| Young's Modulus (GPa) | — |
|---|---|
| Poisson's Ratio | — |
| Knoop Hardness (kgf/mm²) | — |
Chemical Resistance
| Climatic Resistance | 1 |
|---|---|
| Stain Resistance | — |
| Acid Resistance | 1 |
| Alkali Resistance | — |
| Phosphate Resistance | — |
Similar Glasses (Other Manufacturers)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| BAFD4 | Hoya | 1.651278 | 38.312578 | |
| ATF2 | Hoya | 1.65052 | 38.036939 | |
| BASF10 | Schott | 1.65016 | 39.148818 | |
| C51-39 | Corning | 1.650206 | 39.193419 | |
| BAFD10 | Hoya | 1.650157 | 39.343065 | |
| BAH30 | Ohara | 1.650158 | 39.390461 | |
| NBFD38 | Hoya | 1.65253 | 39.48 | |
| H-TF5 | CDGM | 1.6541 | 39.539424 | |
| E-ADF50 | Hoya | 1.65412 | 39.62 | |
| ADF50 | Hoya | 1.654118 | 39.624202 |
Similar Glasses (Sumita)
| Glass | Manufacturer | nd | Vd | |
|---|---|---|---|---|
| BASF4 | Sumita | 1.65128 | 38.3 | |
| BASF10 | Sumita | 1.65016 | 39.3 | |
| K-PG395(M) | Sumita | 1.65296 | 36.8 | |
| K-PG395 | Sumita | 1.658 | 36.9 | |
| BASF12 | Sumita | 1.66998 | 39.2 | |
| BASF2 | Sumita | 1.66446 | 35.9 | |
| BASF1 | Sumita | 1.62606 | 39.1 | |
| F6 | Sumita | 1.63636 | 35.4 | |
| SF7 | Sumita | 1.6398 | 34.6 | |
| K-PSFn166(M) | Sumita | 1.65858 | 34.4 |