Patent ID: 7355349
Filing Date: 2008-04-08
Classification: F21S,F21V,F21Y,H01R,H02J

Abstract:
1. A lighting device, comprising: an array of light emitting diodes (LEDs) in electrical communication with corresponding electrical circuitry; a local electrical energy source and a main power supply for supplying electrical energy to said array of LEDs; a control circuit in electrical communication with said array of LEDs, said control circuit further in electrical communication with a power sensor for sensing disruptions in said main power supply, a motion sensor for sensing movement proximate to said lighting device, a photo sensor for sensing ambient light proximate to said lighting device, wherein said control circuit operatively engages said array of LEDs to illuminate; and a reflector positioned proximate to said array of LEDs for reflecting light provided by said LEDs, wherein said power sensor is structured to provide a main power supply-on signal or a main power supply-off signal to said control circuit; said motion sensor is structured to provide a motion present signal or a motion not-present signal to said control circuit; and said photo sensor is structured to provide an ambient light present signal or an ambient light not-present signal to said control circuit; wherein said control circuit engages said array of LEDs to operate in a first illumination mode wherein said array of LEDs produce a first luminance output, a second illumination mode wherein said array of LEDs produce a second luminance output, and a rest mode wherein said array of LEDs produce a rest luminance output, wherein said first luminance output is greater than said second luminance output, said second luminance output is greater than said rest luminance output; and wherein said control circuit engages said array of LEDs to operate in said first illumination mode upon receiving the main power supply-off signal from said power sensor, the ambient light not-present signal from said photo sensor, and the motion present signal from said motion sensor.