Radiant energy – Luminophor irradiation – With ultraviolet source
Patent
1990-04-27
1991-07-23
Hannaher, Constantine
Radiant energy
Luminophor irradiation
With ultraviolet source
2504581, 2504591, 250341, 250504H, G01J 158, G01J 100
Patent
active
050346156
ABSTRACT:
A device and method for detecting fluorescent evidence, including fingerprints. The device and method use a pair of matched filters, a source of noncoherent light, and a light intensifier to detect the wavelength-shifted luminescence from fluorescent substances. The light source and a first filter illuminate the substances with a light of predetermined band width. The second filter and the light intensifier detect and increase the luminance of the reflected light, shifted to a longer wavelength by luminescence from the florescent substances. The device may be hand-held and portable. The intensified light image may be displayed locally and/or may be transmitted to a remote receiver and displayed so that evidence may be detected remotely.
REFERENCES:
patent: 4773097 (1988-09-01), Suzaki et al.
patent: 4794260 (1988-12-01), Asano et al.
Palermiti Michael
Rios Arturo M.
Glick Edward J.
Hannaher Constantine
Rios Arturo M.
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