Ball lens are highly transparent spheres made of optical glasses.They are used as fiber interconnects in telecom and expanded beam connectors.Large ball lenses have been successfully used as collectors in LED lighting systems and medical devices.They have high coupling efficiency and should be much easier to align than traditional lenses due to its physical shape.
Specification of our ball lens:
*Material:BK7 or other optical glasses
*Diameter:1mm - 40mm  
*Dimension Tolerance:+/-0.005mm 
*Surface Quality:40-20 
*Sphericity:0.005mm
*Coating:optional
We consistently offer various high quality optical components according to the customer's requirements. Such as prisms,spherical lens, aspherial lens,Ball lens,optical windows,Achromatic lens,cylindrical lens,beamsplitters,mirrors,color filters,diffraction grating,reflectors,waveplates etc. In addition,we specialize in manufacturing photographic lens,including telephoto lens,wide angle lens,projector lens, fisheye lens etc.We would also like to do OEM for you.