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Multi-level illumination control system for automotive signalling use

  • US 5,231,373 A
  • Filed: 06/28/1991
  • Issued: 07/27/1993
  • Est. Priority Date: 06/28/1991
  • Status: Expired due to Fees
First Claim
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1. An improved illumination control system for vehicular use for automatically controlling the intensity of a signal light source as a function of at least one safety-affecting parameter, comprising a vehicular electrical power source for powering the light source;

  • controllable semiconductor means for controlling energization provided by the power source for the light source and capable of providing a plurality of different illumination levels of the light source;

    at least one sensor for sensing such a parameter;

    microcontroller means, responsive to said at least one sensor, for controlling the semiconductor means as a function of such parameter and operative to cause the semiconductor means to vary energization provided by the power source to the light source for transition thereof between said different illumination levels.

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