Interior rearview mirror assembly for a vehicle

  • US 10,632,921 B2
  • Filed: 01/28/2019
  • Issued: 04/28/2020
  • Est. Priority Date: 04/23/2009
  • Status: Active Grant
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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:

  • a plastic mirror casing formed via a plastic injection molding process;

    an electro-optic mirror reflective element comprising a front glass substrate and a rear glass substrate spaced apart from said front glass substrate by a perimeter seal, wherein an electro-optic medium is sandwiched between said front glass substrate and said rear glass substrate and bounded by said perimeter seal;

    wherein said front glass substrate has a planar first surface and a planar second surface separated from said planar first surface by a thickness dimension of said front glass substrate;

    wherein said front glass substrate comprises a periphery surface extending between said planar first surface and said planar second surface and spanning the thickness dimension of said front glass substrate, said planar first surface facing a driver of a vehicle when said interior rearview mirror assembly is mounted in a vehicle equipped with said interior rearview mirror assembly;

    wherein a transparent electrically conductive coating is disposed at said planar second surface and is in contact with said electro-optic medium;

    wherein said rear glass substrate has a third surface and a fourth surface, and wherein said third surface of said rear glass substrate is coated with a mirror reflector, and wherein said mirror reflector is in contact with said electro-optic medium;

    wherein said mirror casing comprises a central mounting element and two spaced apart attachment surfaces that are all formed during the plastic injection molding process that forms said mirror casing;

    wherein said rear glass substrate of said electro-optic mirror reflective element is adhesively attached at said attachment surfaces;

    wherein said central mounting element comprises a pivot element that pivotally mounts said mirror casing and said electro-optic mirror reflective element at a mounting structure, and wherein said mounting structure is configured to attach at an interior surface of the equipped vehicle;

    wherein a central cavity exists between said central mounting element and said fourth surface of said rear glass substrate of said electro-optic mirror reflective element;

    wherein said interior rearview mirror assembly comprises a curved outer surface that provides a rounded transition between said planar first surface of said front glass substrate and a less-curved outer surface of a side wall of said mirror casing; and

    wherein no part of said mirror casing encroaches onto said planar first surface of said front glass substrate.

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