H - Electricity – 04 – N
Patent
H - Electricity
04
N
H04N 7/18 (2006.01) G01N 21/956 (2006.01) G01R 31/309 (2006.01) H05K 3/00 (2006.01)
Patent
CA 2175696
A printed circuit board inspection system acquires images for purposes of inspection from viewing fields defined along the surface of the printed circuit board (25) to be inspected which can be varied in size to accomodate the density and tolerance of components associated with the printed circuit board under inspection. To this end, the cameras (30) of the inspection head associated with the printed circuit board inspection system are provided with zoom lenses (31), which are capable of controlled operation responsive to the existing microprocessor systems of the printed circuit board inspection system. This allows the magnification of images acquired by the cameras to be varied, as desired, in turn varying the size of the viewing fields defined for inspection purposes. The inspection head is then operated at a rate commensurate with the size of the viewing fields which have been selected.
Un système d'inspection de cartes de circuits imprimés reçoit des images provenant de champs de visualisation définis le long de la surface de ladite carte (25) et dont la dimension peut être modifiée, de façon à se conformer à la densité et à la tolérance des composants associés à la carte de circuit imprimé soumise au contrôle. De ce fait, les caméras (30) de la tête de contrôle associée au système sont pourvues de lentilles à focale variable (31) pouvant fonctionner de façon commandée en réaction aux systèmes microprocesseurs du système d'inspection. Ceci permet de modifier le grossissement des images reçues par les caméras, ce qui modifie à son tour la dimension des champs de visualisation définis à des fins de contrôle. On peut ensuite faire fonctionner la tête de contrôle à une vitesse proportionnelle à la dimension des champs de visualisation sélectionnés.
Smart & Biggar
Teradyne Inc.
LandOfFree
Method and apparatus for inspecting printed circuit boards... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for inspecting printed circuit boards..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for inspecting printed circuit boards... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-2006958