Anti-EMI lens module
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United States of America Patent
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Jul 20, 2010
Grant Date -
Mar 5, 2009
app pub date -
Aug 30, 2007
filing date -
Aug 30, 2007
priority date (Note) -
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status (Latency Note)
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Abstract
An anti-EMI lens module used in a bill acceptor is disclosed to include a circuit board, which has a plurality of electric recognition devices and a grounding device surrounding the electric recognition devices, a holder base mounted on the circuit board and holding a lens device and having a plurality of through holes respectively aimed at the electric recognition devices and a metal conducting layer disposed in contact with the grounding device of the circuit board and forming with the grounding device a grounding loop for absorbing and discharging static electricity during operation of the bill acceptor to protect the electric recognition devices against static electricity, radiowave and electromagnetic interference.
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