Lighting level control apparatus for fluorescent lighting instal

Details Lighting level control apparatus for fluorescent lighting instal Lighting level control apparatus for fluorescent lighting instal

1988-02-03

1989-01-31

Husar, Stephen F.

Illumination

Light source and modifier

Laser type

362221, 315362, 315DIG4, F21V 2304

Patent

active

048020737

ABSTRACT:
A fluorescent lighting installation incorporates a first switch device for applying and removing power from the installation and a plurality of second switch devices for providing plurality light levels. The respective second switch devices are located within respective ones of a plurality of selected fluorescent lighting fixtures and are interconnected with the respective power inputs, fluorescent lamps and ballasts of the respective selected fluorescent lighting fixtures. The respective second switch devices are operable to step through plural states to provide plural operating states for the fluorescent lamps in the selected fluorescent lighting fixtures. The second switch devices step from one state to the next in response to the application of power for an indefinite period of time by the first switch device.

REFERENCES:
patent: 4001571 (1977-01-01), Martin
patent: 4686427 (1987-08-01), Burke

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