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Lighting and/or indicating apparatus for use in foggy conditions

  • US 5,349,267 A
  • Filed: 03/31/1993
  • Issued: 09/20/1994
  • Est. Priority Date: 03/31/1992
  • Status: Expired due to Fees
First Claim
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1. A fog lamp unit in a vehicle, comprising a combining circuit having a first input and a second input, a relative humidity detecting device having an output connected to said first input of the combining circuit, and a visibility detecting device having an output connected to said second input of the combining circuit, said combining circuit having an output for connection to at least one fog lamp unit of the vehicle, whereby the combining circuit combines signals received from said detecting devices so as to produce command signals for illumination and extinction of said at least one fog lamp unit of the vehicle.

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