Spherical ball lenses are commonly used for laser collimating and focusing, laser-to-fiber coupling, fiber-to-fiber coupling, and fiber-to-detector coupling

Material
    BK7, Fused Silica, Sapphire, Fused Silica, quartz, or custom materials

Technical specifications
    Diameter range: 1mm--15mm
    Diameter tolerance: +/-0.005mm
    Surface Quality: 60/40 Scratch/Dig