INSPECTION DEVICE FOR SHEET-SHAPED OBJECT
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United States of America Patent
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Issued Date -
Jan 12, 2017
app pub date -
Nov 17, 2014
filing date -
Nov 29, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
An inspection device (40) is configured to be provided with; white LED illuminators (41a1, 41a2, 41b1, 41b2); IR-LED illuminators (43a, 43b); visible range color cameras (42A, 42B); an IR monochrome camera (44) which is provided at a position outside the fields of view of the cameras (42A, 42B); support frames (49a, 49b) which support the illuminators (41a1, 41a2, 41b1, 41b2, 43a, 43b); an IR filter (45) which causes only infrared rays to be incident on the camera (44); and a control unit (46) which, according to visible light incident on the cameras (42A, 42B), determines whether a pattern portion printed on paper (W) by ordinary ink is appropriate or not, and according to the infrared rays incident on the camera (44), determines whether a portion in which a “security thread” is processed and a portion in which an “OVD” is processed of the paper (W) are appropriate or not.
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