Drive apparatus for a liquid crystal dazzle-free mirror arrangement

  • US 4,676,601 A
  • Filed: 04/02/1986
  • Issued: 06/30/1987
  • Est. Priority Date: 11/14/1983
  • Status: Expired due to Fees
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First Claim
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1. A dazzlement preventing mirror arrangement for a vehicle comprising:

  • a rear view mirror assembly mounted on said vehicle and operable in either a dazzlement-preventing state or in a dazzlement non-preventing state;

    rear light detecting means for detecting rear light incident to said rear view mirror assembly from the rear of said vehicle and providing a first electrical signal indicative of the detected rear light;

    discriminating means for determining an ambient light condition in a region of said rear view mirror assembly and providing a second electrical signal indicative thereof,dazzle control means, responsive to said first and second electrical signals, for (1) causing said rear view mirror assembly to operate in said dazzlement preventing state when both said detected rear light is higher than a first predetermined level and said ambient light condition meets first predetermined criteria and (2) causing said rear view mirror assembly to operate in said dazzlement preventing state when said detected rear light is higher than a second predetermined level which is higher than said first predetermined level regardless of said ambient light condition.

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