REFLECTIVE OPTICAL SENSOR FOR BILL VALIDATOR

REFLECTIVE OPTICAL SENSOR FOR BILL VALIDATOR

A simple high optical efficiency reflective optical sensor for bill validator uses an inexpensive bulb having a case which is transparent to efficient luminous radiation. This case is used as a wave guide to return reflected radiation to at least one photo detector situated directly under the transp...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: LUKONIN, OLEKSANDR, ANDROSYUK, SERGIY, RUSAKOV, YURIY, BAYDIN, DMITRO, BAZHENOV, MYKHAYLO, GAPONYUK, GENNADIY
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CHECKING-DEVICES
HANDLING OF COINS OR OF PAPER CURRENCY OR SIMILAR VALUABLEPAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING,DISPENSING, CHANGING OR DEPOSITING
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
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Beschreibung
Zusammenfassung:A simple high optical efficiency reflective optical sensor for bill validator uses an inexpensive bulb having a case which is transparent to efficient luminous radiation. This case is used as a wave guide to return reflected radiation to at least one photo detector situated directly under the transparent bottom of the case. The bulb emits a narrow beam of light and is positioned in close proximity and perpendicular to a bill surface and illuminates it. The light reflected or fluoresced by the bill is collected widely with a convex lens end of the bulb case and this collected radiation is transmitted through the bulb case to the at least one photo detector. Preferably, the bulb is a light emitting diode.