Sapphire Ball Lens

Ball lenses 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 fit into smaller packages. 

Sapphire and Ruby ball lenses are both made from Al203. Ruby or Ruby-Doped sapphire owes its red color to traces of chromium oxide (chromium content for ruby balls is typically >0.5%). While their physical and chemical properties are basically the same, their optical properties are somewhat different. Sapphire has superior optical transmission qualities. Ruby Balls are easier to see and therefore easier to handle for physical applications.

          Ball Lens                                       Half-Ball Lens

Specification of our ball lens:
*Material:BK7 or other optical glasses,optical crystal materials
*Diameter:1mm - 40mm   
*Dimension Tolerance:+/-0.005mm  
*Surface Quality:40-20  
*Sphericity:0.005mm
*Coating:optional