Appearance inspection apparatus for inspecting inspection piece
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United States of America Patent
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Sep 15, 2009
Grant Date -
Jul 27, 2006
app pub date -
Dec 22, 2005
filing date -
Dec 24, 2004
priority date (Note) -
In Force
status (Latency Note)
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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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