The KGA240-B Geltech Molded Glass Aspheric Lens is a very economic choice for collimating or focusing light at high magnification. It is made from Corning C0550 glass, which features low dispersion (Vd=50.40). Typical applications include fiber coupling, laser diodes, medical lasers, optical data storage, and barcode scanners. This 9.94 mm diameter lens has an effective focal length of 8.00 mm and a 0.50 NA. It has a NIR anti-reflective coating for 600-1050 nm.
| Model | KGA240-B |
|---|---|
| Lens Type | Aspherical |
| Lens Shape | Bi-Convex |
| Effective Focal Length | 8.00 mm |
| Diameter | 0.39 in. (9.9 mm) |
| Antireflection Coating | 600-1050 nm (-B) |
| Lens Material | Corning C0550 Glass |
| Surface Quality | 40-20 scratch-dig |
| Wavelength Range | 400 to 600 nm |
| Diameter Tolerance | ±0.015 mm |
| Te | 0.250 mm |
| Clear Aperture | 8.0 mm (0.315 in. ) |
| Design wavelength | 780 nm |
| Numerical Aperture | 0.50 |
| Working Distance | 5.92 mm |
| Cleaning | Non-abrasive method, acetone or isopropyl alcohol on lens tissue recommended |
