The Surface Measurement Instrument (SMI) from Optikos Corp. uses wavefront-sensing technology to measure ball lenses used in fiber optic devices. The instrument can quickly evaluate radius of curvature (less than 0.05%) and surface irregularities with full surface mapping. The SMI takes readings without requiring any vibration isolation schemes. To use the instrument, the operator only has to place a ball lens on a top-mounted nest. The SMI operates in any manufacturing environment and requires very little space. It includes software for sharing the SMI data and an OLE library of SMI functions. An ActiveX programming interface allows integration with manufacturing databases and quality assurance systems.