The FSQ-BG3 Colored Glass Filter is a 50.8 x 50.8 mm square, blue bandpass colored glass filter made of BG.3 glass. Our colored glass filters serve as broadband, bandpass, or long-wave pass filters. These filters are precision polished for demanding research or OEM applications.
| Model | FSQ-BG3 |
|---|---|
| Dimensions | 2.0 x 2.0 in. (50.8 x 50.8 mm) |
| Schott Glass Number | BG.3 |
| Thickness | 0.118 in. (3.0 mm) |
| Surface Quality | 60-40 scratch-dig |
| Damage Threshold | 30 W/cm2 CW, typical |
| Wedge | ≤3 arc min |
| Clear Aperture | ≥central 80% of dimensions |
| Thickness Tolerance | ±0.1 mm |
| Material | Schott, Hoya colored glass or equivalent |
| Chamfers | 0.25–0.76 mm face width |
| Chamfers Angle/Tolerance | 45° ±15° |
| Angle of Incidence | 0° |
| Cleaning | Non-abrasive method, acetone or isopropyl alcohol on lens tissue recommended |
