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Method for automatically controlling lighting devices and device for carrying out the method

  • US 6,909,236 B2
  • Filed: 12/29/2001
  • Issued: 06/21/2005
  • Est. Priority Date: 06/15/2001
  • Status: Expired due to Fees
First Claim
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1. A method for automatic control of lighting devices, comprising:

  • detecting a brightness in a specific direction by at least one directional sensor which emits direction signals to a control device;

    switching on the lighting devices by the control device after an expiration of a minimum time which begins when the direction signals;

    and one of exceeding and dropping below a switch-on threshold; and

    are one of above and below the switch-on threshold during the entire minimum time; and

    determining the minimum time in view of an ambient brightness detected by at least one global sensor.

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