A high speed high precision laser based alignment sensor system for use on surface mount component placement machines. A laser system is utilized to correctly align and position component parts which range between 0.02 inches and 2.0 inches in size. The laser sensor system consists of a laser light source...http://www.google.es/patents/US5278634?utm_source=gb-gplus-sharePatente US5278634 - High precision component alignment sensor system
