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

  • US 10,150,417 B2
  • Filed: 09/11/2017
  • Issued: 12/11/2018
  • 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 light transmitting aperture established therethrough;

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

    wherein said mirror back plate comprises first structure at said rear side of said mirror back plate;

    wherein said first structure is configured to attach at an actuator of an exterior rearview mirror assembly;

    wherein said mirror back plate comprises a light transmitting aperture;

    wherein said mirror back plate comprises an indicator mounting portion;

    wherein said indicator mounting portion of said mirror back plate comprises (i) said light transmitting aperture of said mirror back plate and (ii) second structure at said rear side of said mirror back plate wherein said second structure is adjacent said light transmitting aperture of said mirror back plate;

    wherein said second structure is configured for attachment of a blind spot indicator module at said rear side of said mirror back plate;

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

    wherein said heater pad is adhered at said front side of said mirror back plate with said light transmitting aperture of said heater pad juxtaposed with said light transmitting aperture of said mirror back plate;

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

    said blind spot indicator module comprising a light source that emits light when electrically powered;

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

    wherein said blind spot indicator module comprises a diffuser through which light emitted by said light source passes before exiting said blind spot indicator module; and

    wherein, with said blind spot indicator module attached at said indicator mounting portion of said mirror back plate and when said mirror reflective element is disposed at an exterior rearview mirror of a vehicle and when said light source is electrically powered responsive to a blind spot detection system of the vehicle, light emitted by said light source passes through said diffuser and through said light-transmitting aperture of said metallic mirror reflector to provide an illuminated icon to a driver of the vehicle when the blind spot detection system of the vehicle detects the presence of another vehicle in a lane next to a lane being travelled by the vehicle equipped with said mirror reflective element having said blind spot indicator module thereat.

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