Light sensing dimming control system for gas discharge lamps
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United States of America Patent
Stats
-
Feb 13, 2001
Grant Date -
N/A
app pub date -
May 20, 1999
filing date -
May 20, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A control system for controlling the illumination intensity of a gas discharge lamp to provide only necessary illumination and thus conserve power consumption. The control system has a daylight harvester which produces a control signal related to the available light within a given area. The control signal is conducted to a voltage controlled oscillator which, in turn conducts an oscillating signal to a frequency controlled ballast transformer that effectively drives the gas discharge lamp controlling the illumination intensity and energy consumption. The control system alternatively comprises a remote signal receiver for use alone or in addition to the daylight harvester. The control system with a remote signal receiver is controllable using a remote signal generator such as laser pointer. The remote signal receiver allows the user to control the illumination intensity of a gas discharge lamp from the area being illuminated.
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