Fluorescent radiation converter

Details Fluorescent radiation converter Fluorescent radiation converter

1980-01-11

1981-04-14

Dixon, Harold A.

Radiant energy

Invisible radiation responsive nonelectric signalling

Luminescent device

250368, G01J 158

Patent

active

042622069

ABSTRACT:
A fluorescent radiation converter (10) having a substantially undoped optically transparent substrate (12) and a waveshifter coating (14) deposited on at least one portion of substrate (12) for absorption of radiation (16) and conversion thereof to fluorescent radiation (18). Coating (14) is formed of substantially 1000 g/liter of a solvent, 70 to 200 g/liter of an organic polymer, and 0.2 to 25 g/liter of at least one organic fluorescent dye. The incoming incident radiation (16) impinges on coating (14) and enters therein. Radiation (16) is absorbed by the fluorescent dye and is re-emitted as a longer wavelength radiation (18). Radiation (18) is trapped within substrate (12) and is totally internally reflected by boundary surfaces (22) and (24) towards ends (20). Emitted radiation (18) leaves ends (20) to be detected.

REFERENCES:
patent: 4146790 (1979-03-01), Goetzberger et al.
patent: 4173495 (1979-11-01), Rapp et al.

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