Method and device for collecting light utilizing a light trap

Radiant energy – Invisible radiation responsive nonelectric signalling – Luminescent device

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250486, H05B 3300, G01J 158

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active

042988020

ABSTRACT:
A method and a device for collecting light characterized by a body which acts as a light trap, contains at least two different groups of fluorescent particles with each group having an absorption range and light emitting range which are different from the other groups, and has at least one light decoupling window to emit the fluorescent light therefrom.

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W. Greubel et al., "Das Fluoreszenz-Aktivierte Display `FLAD`", Elektronic, vol. 6, 1977, pp. 55-56.
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