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Multiple sensing automatic lighting system for personal safety

  • US 7,057,153 B2
  • Filed: 05/10/2004
  • Issued: 06/06/2006
  • Est. Priority Date: 05/12/2003
  • Status: Expired due to Fees
First Claim
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1. A device having an intelligent lighting system mounted thereon for providing illumination for a user of the device, the system comprising:

  • at least one LED;

    a power source being arranged for powering the at least one LED;

    and a control circuit arranged to activate and deactivate power to the at least one LED;

    the at least one LED, the power source and the control circuit mounted on the device for movement therewith;

    the at least one LED being arranged on the device to provide illumination of an area exterior to the device;

    the control circuit consisting solely of;

    a light sensor arranged on the control circuit such that the sensor acts to sense ambient light surrounding the device to detect a level of the ambient light;

    a vibration sensor mounted in the control circuit on the device and arranged to detect movement of the device itself relative to its environment;

    first circuit components responsive to the vibration sensor arranged to detect movement of the device relative to its environment above a predetermined level;

    second circuit components responsive to the light sensor arranged to detect ambient light below a predetermined level;

    third circuit components arranged to activate the power source to the at least one LED if the level of ambient light is less than the predetermined level of ambient light and the level of movement of the device relative to its environment is greater than the predetermined level of movement and arranged to deactivate the power source to the at least one LED after a prescribed period of time if either the level of ambient light is greater than the predetermined level of ambient light or the level of movement of the device relative to its environment is less than the predetermined level of movement;

    such that the at least one LED is activated automatically without manual switching.

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