Camera Requirements For 3D Metrology

By Adimec

As the objects to inspect/measure in high-tech manufacturing become smaller, higher-resolution cameras with better spatial resolution can improve accuracy and precision. This does require a high-quality machine vision camera design, however, or what is now called a metrology camera. 3D measurements in particular pose increasing demands on camera performance and reliability. This article discusses critical parameters, depending on the specific measurement.

Nowadays the ever increasing demand for smartphones and tablets requires state-of-the-art production with high-speed inspection for high yield. These devices require smaller and more complex printed circuit boards (PCBs) and electronic components, resulting in a need for more accurate manufacturing and measurements. This is still happening on an aggressive time scale as consumers expect new improvements quickly resulting in fast innovation cycles. Not surprisingly it is driving innovation in supporting innovations, including machine vision.