3D optical metrology using structured light projection (SLP) is now a well-established technique for the rapid gathering of 3D coordinate details of a device under test (DUT). The technique is completely non-contact and lends itself to Solder Paste Inspection (SPI), microelectronics inspection (MEI), and Automated Optical Inspection (AOI) of manufactured parts for inline assembly processes and of small (molded) parts. In such applications, the whole surface height distribution of the DUT can be calculated and compared with a reference in seconds.
Many leading manufacturers of 3D metrology systems design and manufacture their own projection-engines. However, typical SPI/MEI/AOI companies have limited optical design experience and as a result, design and development timelines can drag on for several months before reaching acceptable performance levels. Some companies sub-contract optical design out, but do not consistently achieve the desired levels of performance; once the optical design is fixed, the variation can only come from SLP manufacturing tolerances.
Lumaxis provides projection engines that it designs into 3D metrology solutions, focusing primarily on automated optical inspection systems. Lumaxis gives manufacturers serving the electronics market an industry-leading combination of resolution, speed, precision, reliability, and design flexibility.