Apparatus for discriminating bills which have a transparent portion
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United States of America Patent
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Apr 20, 1999
Grant Date -
N/A
app pub date -
Apr 14, 1997
filing date -
Jun 10, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Apparatus for discriminating bills includes a sensitive color plate provided on one side of a bill transport passage for transporting bills therethrough, and a light source for emitting light toward the sensitive color plate. A reflecting plate is provided parallel to the sensitive color plate on the other side of the bill transport passage for reflecting light from the light source transmitted through the sensitive color plate back toward the sensitive color plate. A band-pass filter passes light having a prescribed wavelength range and cuts light having other wavelengths. A photosensor detects the light reflected by the reflecting plate and transmitted through the sensitive color plate and the band-pass filter. With this arrangement, it is possible to discriminate bills having a transparent portion with high accuracy.
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