ball lens

ball lens. Spherical Ball Lenses are commonly used for laser collimating and focusing, laser-to-fiber coupling, fiber-to-fiber coupling, and fiber-to-detector coupling. Larger spheres are easier to handle and ease the sensitivity of translational alignment. However, smaller spheres has the benefit of fitting into smaller packages.The addition of a broadband MgF2 antireflection coating results in a highly efficient lens due to the high refractive index of the glass. Coupling efficiency is generally >90% due to the simplicity of these lenses. wecan supply spherical ball lenses in various materials, including BK7(Glass), Sapphire, CaF2, BaF2, YAlO3, or custom materials upon request.Main Specifications MaterialBK7, Sapphire or custom materialsSurface Quality85%DiameterMinimum 1mmDiameter Tolerance+/-0.005mmSurface Quality60/40 Scratch/Dig