Polychromatic electroluminescent device

Details Polychromatic electroluminescent device Polychromatic electroluminescent device

1974-11-08

1976-03-02

Stolwein, Walter

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

210553, 210226, 313498, 357 63, H01L 3300

Patent

active

039421856

ABSTRACT:
A method of energizing an electroluminescent device including several in series connected elementary light sources at least two of which emit radiations of different wavelengths, comprising the steps of supplying the light sources with current pulses of different intensities and controlling the duration of the pulses so that each intensity is inversely proportional to the emitted light flux.

REFERENCES:
patent: 3404305 (1968-10-01), Wright
patent: 3499158 (1970-03-01), Lavine et al.
patent: 3603833 (1971-09-01), Logan et al.
patent: 3611069 (1971-10-01), Calginitis et al.
patent: 3740570 (1973-06-01), Kaelin et al.

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