Radiant energy – Luminophor irradiation – With ultraviolet source
Patent
1997-12-29
1999-08-24
Hannaher, Constantine
Radiant energy
Luminophor irradiation
With ultraviolet source
250504H, G01N 2164
Patent
active
059427590
ABSTRACT:
A counterfeit detection viewer apparatus for detecting security markings in paper currency. The counterfeit detection viewer apparatus includes a viewer housing having a detection opening on the bottom thereof for receiving the paper currency to be inspected and a viewing opening on the top thereof for inspecting the paper currency. The counterfeit detection viewer apparatus further includes a pair of holding brackets for detachably holding the counterfeit detector unit within the viewer housing which is usable within the housing and is removable for use as a hand-held counterfeit detector unit in a dark room or dark area. The counterfeit detector unit includes a UV light fixture mounted in the counterfeit detector unit having a UV fluorescent lamp for projecting UV light rays toward the detection opening and the paper currency to be inspected. The UV fluorescent lamp being less than 0.5 cm from the detection opening. The counterfeit detector unit further includes a movable cover for protecting the UV fluorescent lamp when not in use. In addition, the counterfeit detector unit includes a battery compartment for receiving batteries to power the UV fluorescent lamp; and an ON/OFF switch for activating said UV fluorescent lamp prior to inspecting the paper currency through the viewing opening.
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patent: 3842281 (1974-10-01), Goodrich
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patent: 5444263 (1995-08-01), Mastnak
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patent: 5668377 (1997-09-01), Erickson
Hannaher Constantine
Jiron Darren M.
Sutton Ezra
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