... projection achromatic/camera/led/microscope custom lens Lens materials: optical glass(N-BK7,fused silica), Ge, Si, CaF2, ZnSe, ceramics,etcLens types: optical ... glass lens, plano convex lens, plano concave lens, biconcave lens, ... requirement. The table below shows the items in stock. For more details, please contact us directly.