Television – Special applications – Flaw detector
Patent
1998-06-15
1999-10-19
Tung, Bryan
Television
Special applications
Flaw detector
348 95, 348134, 348126, H04N 718, H04N 947
Patent
active
059697520
ABSTRACT:
A surface mount component outer surface inspection system comprising a loader for assembling an inventory of surface mount components and feeding them outward in controlled rectilinear manner and in a timed sequence, a first transfer assembly including a first moving endless belt in racetrack pattern, the belt having a partially perforated outer surface and a vacuum pulled through the perforations from the outer surface along a portion of the belt, for receipt of and retaining the surface mount components from the loader in spaced-apart arrangement on the belt, a surface-mount component, upper-surface viewing device for bringing the exposed surfaces of the moving components into focus at an area for inspecting them for visual defects, a second transfer assembly including a second moving endless belt in racetrack pattern, the belt having a partially perforated outer surface and a vacuum pulled through the perforations from the outer surface along a portion of the belt, the second assembly adjacent the first endless belt located outside of the vacuum area of the first belt and spaced-apart from the upper-surface viewing device, for receipt of the surface-mount components on the opposite sides thereof from the first belt surface in similar spaced-apart arrangement, a surface-mount component, lower-surface viewing device for bringing the exposed surfaces of the components into focus at an area for inspecting them for visual defects, and means for determining the location of surface-mounted components that have failed the visual inspection and following same to a point where the failed components can be separated from other, successfully tested components on the second transfer assembly.
REFERENCES:
patent: 4406373 (1983-09-01), Braden
patent: 4912554 (1990-03-01), Neri
patent: 5226382 (1993-07-01), Braden
patent: 5305099 (1994-04-01), Morcos
patent: 5409119 (1995-04-01), Rao Datari
Diep Nhon T.
Electro Scientific Industries
Murphey John J.
Tung Bryan
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