Rearview mirror assembly for a vehicle

  • US 7,310,178 B2
  • Filed: 04/23/2007
  • Issued: 12/18/2007
  • Est. Priority Date: 04/26/2002
  • Status: Expired due to Fees
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First Claim
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1. An interior rearview mirror assembly for a vehicle, said interior rearview mirror assembly comprising:

  • an electro-optic mirror unit whose reflectivity is variable in response to an electrical voltage applied thereto, said electro-optic mirror unit comprising a first substrate and a second substrate with an electro-optic medium sandwiched therebetween;

    said mirror unit providing a rearward field of view to a driver of a vehicle when said interior rearview mirror assembly is mounted in the vehicle;

    said first substrate being closer to the driver of the vehicle than said second substrate when said interior rearview mirror assembly is mounted in the vehicle;

    said first substrate having a first surface and a second surface, said first surface being closer to the driver of the vehicle than said second surface when said interior rearview mirror assembly is mounted in the vehicle, said first substrate having a transparent electrical conductor disposed at said second surface of said first substrate, said first substrate having a first perimeter edge about a periphery of said first substrate and between said first and second surfaces;

    a bezel disposed at least partially in front of said mirror unit and encompassing said first perimeter edge, an overlapping portion of said bezel overlapping a perimeter region of said first surface;

    said second substrate having a third surface and a fourth surface, said third surface being closer to the driver of the vehicle than said fourth surface when said interior rearview mirror assembly is mounted in the vehicle, said second substrate having a mirror reflector disposed at said third surface of said second substrate, said second substrate having a second perimeter edge about a periphery of said second substrate and between said third and fourth surfaces;

    said second perimeter edge comprising a recess that is recessed relative to a corresponding region of said first perimeter edge when said first and second substrates are assembled together to sandwich said electro-optic medium therebetween, a front surface portion of said corresponding region of said first perimeter edge being at least partially overlapped by said overlapping portion of said bezel; and

    at least one sensor disposed behind said first substrate and operable to receive light through at least one aperture in said overlapping portion of said bezel and through said first substrate and unobstructed by said second substrate.

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