Half-ball (hemispherical) lens are ideal for applications such as fiber communication, endoscopy, microscopy, optical pick-up devices, and laser measurement systems.
Specification of half ball lens as follow:Diameter (mm):0.5mm-100mmRadius Tolerance (μm):+0/-0.01Center Thickness Tolerance:(mm) ±0.01Surface Quality:20-10Substrate:N-BK7 or other optical materialCoating:None or as requestedRoHS Compliant