公开(公告)号：US07239399B2

公开(公告)日：2007-07-03

申请号：US10291074

申请日：2002-11-08

申请人： David W. Duquette ,  Paul R. Haugen ,  David Fishbaine ,  John D. Gaida ,  David D. Madsen ,  Theodore Paul Dale ,  Todd D. Liberty ,  Brant O. Buchika ,  Scott D. Roth ,  Thomas W. Bushman

发明人： David W. Duquette ,  Paul R. Haugen ,  David Fishbaine ,  John D. Gaida ,  David D. Madsen ,  Theodore Paul Dale ,  Todd D. Liberty ,  Brant O. Buchika ,  Scott D. Roth ,  Thomas W. Bushman

IPC分类号： G01B11/14

CPC分类号： H04N13/239 ,  H04N13/194 ,  H04N13/207 ,  H04N13/218 ,  H04N13/254 ,  H04N2013/0081 ,  H05K13/0812 ,  H05K13/0818 ,  Y10T29/49778 ,  Y10T29/53087 ,  Y10T29/53191

摘要： Improved component placement inspection and verification is performed by a pick and place machine. Improvements include stereovision imaging of the intended placement location; enhanced illumination to facilitate the provision of relatively high-power illumination in the restricted space near the placement nozzle(s); optics to allow image acquisition device to view the placement location from an angle relative to a plane of the placement location, thereby reducing the possibility of such images being obstructed by the component; techniques for rapidly acquiring images with commercially available CCD arrays such that acquisition of before and after images does not substantially impact system throughput; and image processing techniques to provide component inspection and verification information.