Mirror reflective element sub-assembly for exterior rearview mirror of a vehicle

  • US 9,694,753 B2
  • Filed: 06/01/2015
  • Issued: 07/04/2017
  • Est. Priority Date: 09/14/2005
  • Status: Active Grant
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First Claim
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1. A mirror reflective element sub-assembly for an exterior rearview mirror assembly of a vehicle, said mirror reflective element sub-assembly comprising:

  • a mirror reflective element comprising a transparent glass substrate having a front surface and a rear surface;

    a metallic mirror reflector disposed at one of said front surface of said transparent glass substrate and said rear surface of said transparent glass substrate;

    said metallic mirror reflector comprising a light-transmitting aperture;

    a heater pad disposed at said rear surface of said transparent glass substrate, wherein said heater pad comprises a substantially non-light transmitting portion and a light transmitting portion;

    a mirror back plate disposed at said heater pad, said mirror back plate comprising a plate portion having a front plate surface and a rear plate surface rearward of said front plate surface and spaced from said front plate surface by a thickness dimension of said plate portion of said mirror back plate;

    wherein said mirror back plate comprises a first structure at said rear plate surface, wherein said first structure is configured to attach at an actuator of an exterior rearview mirror assembly;

    wherein said mirror back plate comprises an aperture;

    wherein said heater pad is adhered to said rear surface of said transparent glass substrate with said light-transmitting portion of said heater pad generally juxtaposed with said light transmitting aperture of said metallic mirror reflector;

    wherein said heater pad is adhered to said front plate surface of said mirror back plate with said light-transmitting portion of said heater pad generally juxtaposed with said aperture of said mirror back plate;

    wherein said mirror back plate comprises a plastic molding formed by injection molding and wherein said first structure and said plate portion of said mirror back plate are formed during injection molding of said mirror back plate;

    a blind spot indicator having a light source that is activatable to emit light;

    wherein said light source comprises at least one light emitting diode;

    wherein said blind spot indicator comprises a generally elongated passageway that comprises a plastic molding formed by injection molding;

    wherein said light source is disposed at a first end of said generally elongated passageway and wherein a second end of said generally elongated passageway passes through said aperture of said mirror back plate to attach at the rear of said transparent glass substrate;

    wherein said blind spot indicator is associated with a blind spot detection system of a vehicle equipped with said mirror reflective element sub-assembly; and

    wherein, when said light source is activated, light emitted by said light source passes through said light transmitting portion of said heater pad and through said light-transmitting aperture of said metallic mirror reflector to provide an illuminated icon to a driver of the equipped vehicle when the blind spot detection system of the equipped vehicle detects the presence of another vehicle or object in a lane next to the lane being travelled by the equipped vehicle.

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