Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
September 15, 2009
Patent Application Number
11314092
Date Filed
December 22, 2005
Patent Primary Examiner
Patent abstract
A first imaging unit and a second imaging unit of an appearance inspection apparatus for inspecting a board scan one surface of the board by being moved relative to the board. A third imaging unit and a fourth imaging unit are provided opposite to the first imaging unit and the second imaging unit, sandwiching the board, and scan the other surface of the board by being moved relative to the board. A board transport motor moves the imaging units and the board relative to each other. Each of the imaging units completes scanning the board in a single step of movement for moving the board and the scanning units relative to each other.
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