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Apparatus and methods for providing an emergency lighting augmentation system

  • US 6,986,589 B2
  • Filed: 12/13/2003
  • Issued: 01/17/2006
  • Est. Priority Date: 01/30/2002
  • Status: Expired due to Fees
First Claim
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1. A lighting device having a power sensor for sensing a disruption in a main power supply, the lighting device comprising:

  • at least one light emitting diode (LED) in electrical communication with corresponding electrical circuitry;

    a local electrical energy source for supplying electrical energy to said at least one LED;

    an LED drive circuit/boost converter;

    a control circuit in electrical communication with said at least one LED, said LED drive circuit/boost converter, and the power sensor, wherein upon sensing the disruption in the main power supply the power sensor signals said control circuit to engage said LED drive circuit/boost converter and, thus, operatively engage said at least one LED to illuminate; and

    a reflector positioned proximate to said at least one LED for reflecting light provided by said LEDs.

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