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(11) | EP 1 895 481 A3 |
(12) | EUROPEAN PATENT APPLICATION |
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(54) | Bill validator |
(57) Unit for detecting an insertion of a bill (PM) into a bill passage (BP) in a bill
validator includes at least one light transmitting element (34) having a plurality
of ports (34a) arranged at one of opposed surfaces of the bill passage (BP) and capable
of emitting a light incident at least on one light incident port (34a) among the plurality
of ports (34a) from at least one light emitting port (34a) among the plurality of
ports (34a), at least one light emitting element (45) arranged at the other of the
opposed surfaces of the bill passage (BP) and capable of allowing a light to enter
the light incident port (34a) of the light transmitting element (34) through the bill
passage (BP), and at least one light receiving element (46) arranged at the other
of the opposed surfaces of the bill passage (BP) and capable of receiving the light
emitted from the light emitting port (34a) of the light transmitting element (34)
through the bill passage (BP).
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