Mirror with dazzle light attenuation zone

  • US 5,168,378 A
  • Filed: 02/10/1992
  • Issued: 12/01/1992
  • Est. Priority Date: 02/10/1992
  • Status: Expired due to Fees
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First Claim
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1. A liquid-crystal matrix-type reflection mirror with a localized dazzle light attenuation zone, said mirror having a multilayered structure and comprising:

  • a base mirror having a broadband spectral reflectivity;

    a matrix transparent electrode on one side of said base mirror;

    a photoconductive layer on said matrix transparent electrode;

    a rear polarizer placed on said photoconductive layer and having a predetermined axis of polarization;

    a common transparent electrode above said rear polarizer;

    a liquid crystal sandwiched and sealed between said rear polarizer and said common transparent electrode;

    a front polarizer on said common electrode, said front polarizer having an outer surface and an axis of polarization parallel to said predetermined axis of polarization; and

    a control circuit connected between said common transparent electrode and said matrix transparent electrode, said control circuit having means for applying a voltage to said common transparent electrode and said matrix transparent electrode.

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