Rearview mirror assembly for vehicle

  • US 8,654,433 B2
  • Filed: 08/05/2013
  • Issued: 02/18/2014
  • Est. Priority Date: 01/23/2001
  • Status: Active Grant
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First Claim
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1. A rearview mirror assembly for a vehicle, said rearview mirror assembly comprising:

  • an electrochromic reflective element having a viewing region operable to exhibit electrically variable reflectivity between a high reflectance state and a dimmed reflectance state when an electrical voltage is applied thereto;

    said electrochromic reflective element comprising a front substrate having a first surface and a second surface;

    said electrochromic reflective element comprising a rear substrate having a third surface and a fourth surface;

    said second surface of said front substrate and said third surface of said rear substrate opposing each other in said electrochromic reflective element and spaced apart by a seal, and with an electrochromic medium disposed therebetween;

    a specularly reflective mirror reflector established at a surface of said rear substrate;

    wherein a specularly reflective perimeter layer is established at least partially around a perimeter border region of said second surface of said front substrate of said electrochromic reflective element and, at least in part, is visible through said front substrate to a viewer when viewing said first surface of said front substrate of said electrochromic reflective element;

    wherein said perimeter layer comprises at least one metal thin film coating;

    wherein, when said electrochromic reflective element is normally viewed by a driver of a vehicle equipped with said rearview mirror assembly when operating the vehicle, said perimeter layer conceals at least a portion of said seal from direct view by the driver; and

    wherein at least one of (a) at least one light source is disposed behind said perimeter layer and emits light that is visible to a viewer viewing said first surface of said front substrate of said electrochromic reflective element at said perimeter layer, and (b) a light sensor is disposed behind said perimeter layer and senses light that passes through said front substrate at said perimeter layer.

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