DocumentCode
281334
Title
Invisible fluorescent code reader
Author
Le, Nghia T. ; Bordoloi, Kiron C.
Author_Institution
Dept. of Electr. Eng., Louisville Univ., KY, USA
fYear
1988
fDate
11-13 Apr 1988
Firstpage
417
Lastpage
420
Abstract
An invisible fluorescent code reader which functions as an identification detector and is designed primarily for security purposes is discussed. The identification source is a fluorescent code that cannot be seen in visible light of the spectrum from approximately 400 nm to 800 nm in wavelength. However, this code becomes visible when it is exposed to ultraviolet radiation. The code is then detected and processed, and proper outputs are produced
Keywords
mark scanning equipment; security of data; identification detector; invisible fluorescent code reader; security; ultraviolet radiation; Circuits; Fluorescence; Infrared detectors; Lenses; Light sources; Optical design; Optical modulation; Photodiodes; Ultraviolet sources; Voltage;
fLanguage
English
Publisher
ieee
Conference_Titel
Southeastcon '88., IEEE Conference Proceedings
Conference_Location
Knoxville, TN
Type
conf
DOI
10.1109/SECON.1988.194889
Filename
194889
Link To Document