Full power light control

Details Full power light control Full power light control

1995-08-07

1997-09-23

Pascal, Robert

Electric lamp and discharge devices: systems

With radiant energy sensitive control means

Load device irradiating the radiant energy responsive device

315156, 315159, 250206, H05B 3702

Patent

active

056708467

ABSTRACT:
A photoelectric control circuit that energizes a light bulb at a certain level of darkness and immediately records the total amount of light that results. A delay circuit prevents the new level of light from turning the bulb back off until a even greater amount of light is available. This method of operation provides full power control for a variety of lamps and bulbs without the degraded performance previously associated with reflected light from enclosures and nearby objects.

REFERENCES:
patent: 4139801 (1979-02-01), Linares
patent: 4198563 (1980-04-01), Elssner
patent: 4287453 (1981-09-01), Orban
patent: 4595860 (1986-06-01), Taylor
patent: 4697122 (1987-09-01), Hotter
patent: 5554912 (1996-09-01), Thayer et al.

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