BAF5 by CDGM
Obsolete
Unknown
Environmentally Dangerous
BAF5 by CDGM is an obsolete optical glass. It transmits from 0.32 to 2.40 µm with an nd of 1.605623 and a Vd of 43.890292. It has medium thermal expansion (CTE of 8.1×10⁻⁶/K), low relative cost, and dangerous environmental properties.
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) | 1.605623 |
|---|---|
| Abbe Number (Vd) | 43.890292 |
| Dispersion Formula | Schott |
| Wavelength Range | 0.365 — 1.014 µm |
$$n(\lambda) = \sqrt{2.52216 - 0.00832443\,\lambda^2 + 0.0186334\,\lambda^{-2} + 0.000582653\,\lambda^{-4} - 1.12806 \times 10^{-5}\,\lambda^{-6} + 2.08956 \times 10^{-6}\,\lambda^{-8}}$$
Thermal Properties
| TCE -30/70°C (10-6/K) | 8.1 |
|---|---|
| TCE 100/300°C (10-6/K) | 9.8 |
| Thermal Conductivity (W/mK) | — |
| Heat Capacity (J/gK) | — |
$$\frac{dn}{dT} = \frac{n_0^2 - 1}{2\,n_0}\left[8.8 \times 10^{-8} + 2(1.12 \times 10^{-8})\,\Delta T + 3(-6.6 \times 10^{-11})\,\Delta T^2 + \frac{7.53 \times 10^{-7} + 2(3.18 \times 10^{-9})\,\Delta T}{\lambda - 0.217}\right]
\Delta T = T - T_0, \quad T_0 = 20\,°\text{C}$$
Mechanical Properties
Chemical Resistance
| Climatic Resistance | — |
|---|---|
| Stain Resistance | — |
| Acid Resistance | — |
| Alkali Resistance | — |
| Phosphate Resistance | — |
Similar Glasses (Other Manufacturers)
| Glass | Manufacturer | nd | Vd | Compare |
|---|---|---|---|---|
| BAF4 | Sumita | 1.60562 | 43.9 | |
| BAF4 | Hoya | 1.60562 | 43.87626 | |
| BAF4 | Schott | 1.605621 | 43.929699 | |
| C06-44 | Corning | 1.605608 | 43.942859 | |
| M-BAF41 | Hoya | 1.605777 | 43.98709 | |
| BAM4 | Ohara | 1.60562 | 43.723021 | |
| N-BAF4 | Schott | 1.60568 | 43.72 | |
| S-BAM4 | Ohara | 1.60562 | 43.706978 | |
| BPM4 | Ohara | 1.6134 | 43.841533 | |
| KZFS4 | Sumita | 1.6134 | 43.8 |
Similar Glasses (CDGM)
| Glass | Manufacturer | nd | Vd | Compare |
|---|---|---|---|---|
| H-BAF5 | CDGM | 1.60562 | 43.875621 | |
| TF3 | CDGM | 1.612423 | 44.093486 | |
| H-TF3L | CDGM | 1.6134 | 44.107022 | |
| H-BAF6 | CDGM | 1.60801 | 46.202418 | |
| QF5 | CDGM | 1.582153 | 42.039634 | |
| BAF7 | CDGM | 1.614131 | 40.025731 | |
| BAF4 | CDGM | 1.582712 | 46.505886 | |
| H-BAF7 | CDGM | 1.61413 | 39.985319 | |
| H-BAF4 | CDGM | 1.58267 | 46.597786 | |
| H-QF50 | CDGM | 1.58144 | 40.888972 |