Programmable lighting control system with normalized dimming for

Details Programmable lighting control system with normalized dimming for Programmable lighting control system with normalized dimming for

1993-10-05

1995-07-04

Pascal, Robert J.

Electric lamp and discharge devices: systems

Current and/or voltage regulation

315294, 315307, 315314, 315DIG4, 315DIG7, G05F 100

Patent

active

054303567

ABSTRACT:
A lighting control system is adapted to dim a plurality of groups of light sources in a room to any one of a number of different preset levels to achieve a like number of different lighting scenes. Each group of light sources defines a lighting zone of the same type of light source, for example, incandescent lamps, fluorescent lamps, neon lights, etc. The system includes a plurality of dimmers for adjusting the respective light levels of the different lighting zones, and a display panel for displaying the instantaneous light level of each zone. According to the invention, a suitably programmed microprocessor or the like operates to normalize the system's dimming performance for a plurality of different types of light sources so that a given change in dimmer setting produces the same change in perceived light level from each of the different types of light sources. Preferably, a system user inputs the type of light source used in each zone by a software scheme that operates the light level indicators of the display panel in an alternative mode to indicate the various types of light sources.

REFERENCES:
patent: 4797599 (1989-01-01), Terence et al.
patent: 5099193 (1992-03-01), Moseley et al.
patent: 5191265 (1993-03-01), D'Aleo et al.
patent: 5248919 (1993-09-01), Hanna et al.
patent: 5264761 (1993-11-01), Johnson

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