Lighting indicating device having plural illuminating elements w

Details Lighting indicating device having plural illuminating elements w Lighting indicating device having plural illuminating elements w

1993-06-09

1995-03-21

Pascal, Robert J.

Electric lamp and discharge devices: systems

With signal, indicator, or alarm

315133, 315293, 315297, 315291, H05B 3704

Patent

active

053999401

ABSTRACT:
A lighting control device for controlling the state and intensity of a lamp includes a user-actuatable intensity selector for selecting a desired lamp intensity level between minimum and maximum intensity levels. The device further includes a programmable microprocessor for storing a preset lamp intensity level, and a linear array of indicator lights (e.g. LED's) for indicating the available range of lamp intensities. According to a preferred embodiment, the microprocessor operates to illuminate all lights in the array when the lamp is OFF, with one indicator light being more brightly illuminated to indicate the preset intensity level. When the lamp is ON, only that indicator light representing the present lamp intensity level is illuminated.

REFERENCES:
patent: 3487263 (1969-12-01), Pahlavan
patent: 4359670 (1982-11-01), Hosaka et al.
patent: 4649323 (1987-03-01), Pearlman et al.
Leviton's MicroDim(.TM.) lighting controller (Made available to public more than one year before applicant's invention).

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