The ball lens commonly used in the optical fiber coupling, laser collimating device, Optical Measurement System,it has a shorter focal length and the characteristics of small size. Sunday produce ball lens, half ball lens, Super hemisphere ball lens, hollow ball lens..
Material: BK7/k9,Fused Silica,Sapphire, ZnSe,Caf2,Si,Ge,etc.
Size tolerance: +/-0.1mm or customer request
Clear Aperture: >90%
S/D: 60/40 40/20 20/10 10/5
Flatness: 1/4lambda at 632.80nm
All the parameters depend on your selection. We customize for you.