Patent ID: 6771805
Filing Date: 2004-08-03
Classification: G01R

Abstract:
A perspective viewing inspection system utilizing perspective view images obtained with coordinated operations of an active vision system and a stage comprising:an active optical system for bird's eye perspective viewing of solder joints joining electronic parts with a printed circuit; a stage able to hold a printed circuit board (PCB) in such a pose that said active optical system has angular perspective views of electronic parts and solder joints on the PCB; teaching means for teaching the positions and the poses of the PCB during inspection and also the addresses of the electronic parts and the part's electrodes on the PCB; means for making an inspection program including layout of the inspection areas enclosing several inspection points; means for imaging including said active optical system; means for coordinating operations of said active optical system and said stage so that said means for imaging acquires angular bird's eye perspective view images of the inspection points on the PCB; and means for automatically evaluating part-mounting and soldering quality using the inspection point images acquired therewith.