Synthesized lighting device

Details Synthesized lighting device Synthesized lighting device

1989-02-21

1990-10-16

LaRoche, Eugene R.

Electric lamp and discharge devices: systems

Plural load device systems

315192, 362240, 362231, 362227, 362800, H05B 3702, H05B 3700, F21V 2300

Patent

active

049637983

ABSTRACT:
Lighting devices for portable and fixed applications use two or more light sources having differing spectral colors and electrical circuit parameters to shape spectral energy distributions of beams of illumination for projection upon external objects and surfaces so as to enhance an observer's perception and discrimination of information displayed thereon, while reducing the radiation of inefficient energies at undesired color spectra. Electrical parameters of the differing light sources are used in sensitive circuits to monitor the condition of battery power and to automatically extend the range of effective illumination produced as the applied power degrades.

REFERENCES:
patent: 4677533 (1987-06-01), McDermott et al.

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