Fluorescent activated, spatially quantitative light detector

Details Fluorescent activated, spatially quantitative light detector Fluorescent activated, spatially quantitative light detector

1981-04-27

1983-02-01

Britton, Howard

Facsimile and static presentation processing

Facsimile

Recording apparatus

250227, 250228, 358 41, 358 75, 358293, 358300, H04N 124

Patent

active

043718973

ABSTRACT:
A fluorescent-activated spatially quantitative light detector for sensing light reflected from an information bearing surface, said light detector comprising a generally cylindrical rod containing a fluorescent dye dispersed throughout a generally transparent medium and a photosensor at one end of, and in operative association therewith. The reflected light incident on the light detector is absorbed by said dye and reradiated at the fluorescent wavelength, a portion of this reradiated light reaching the photosensor causing an output signal to be generated.

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