3.2mm Dia. x 4.0mm Length Telecom-NIR Coated, N-LASFN9 Drum Lens

Product Details Easier to Mount and Handle Than Standard Ball Lenses Drum lenses are glass spheres, ground down axially to provide a mounting surface. The ground circumference D simplifies handling issues typically associated with ball lenses. Ideal for optical transmission in fiber communications. Type B Drum lenses have a polished plano-surface for direct fiber contact and perform as elongated PCX lenses. Specifications General Type: Drum Lens Physical & Mechanical Properties Diameter (mm): 3.20 Diameter Tolerance (μm): +0/-50 Length (mm): 4.00 Length Tolerance (μm): ±3 Radius R (mm): 2.00 Radius Tolerance (μm): +0/-1.5 Optical Properties Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More N-LASF9 Index of Refraction (n d ): 1.850 Coating: Telecom-NIR Coating Specification: R abs ≤0.25% @ 1295 – 1325nm R abs ≤0.25% @ 1535 – 1565nm Wavelength Range (nm): 1295 – 1565 Surface Quality: 40-20 Regulatory Compliance Certificate of Conformance: View ×