Energy-conserving illumination system

Details Energy-conserving illumination system Energy-conserving illumination system

1977-12-19

1979-04-03

Smith, Alfred E.

Electric lamp and discharge devices: systems

Current and/or voltage regulation

307141, 315293, 315DIG7, G05F 100, H05B 3702, H05B 3904, H05B 4136

Patent

active

041479629

ABSTRACT:
An energy-conserving solid-state-controlled illumination system which operates high-intensity-discharge lamps. The system operates the lamps at about a predetermined rated power consumption with a relatively high light output for a predetermined time when a high degree of illumination is desirable and thereafter operates the lamps at about a predetermined power less than rated power consumption when a lower degree of illumination can be tolerated.

REFERENCES:
patent: 3885197 (1975-05-01), Moses
patent: 3940660 (1976-02-01), Edwards

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