Interior rearview mirror system

  • US 7,726,822 B2
  • Filed: 10/08/2009
  • Issued: 06/01/2010
  • Est. Priority Date: 06/06/2002
  • Status: Active Grant
  • ×
    • Pin
First Claim
Patent Images

1. An interior rearview mirror system for a vehicle, said interior rearview mirror system comprising:

  • an interior rearview mirror assembly;

    a mirror casing and a reflective element, said reflective element comprising a transflective reflective element having a transflective reflector that is partially transmitting of light therethrough and partially reflecting of light incident thereon;

    wherein said reflective element is at least 15 percent transmissive of visible light incident at a rear of said reflective element;

    an information display disposed behind said reflective element whereby information displayed by said information display is viewable through said transflective reflector by a driver of a vehicle when said interior rearview mirror assembly is normally mounted in the vehicle and when said information display is displaying information, and wherein said information display is substantially non-viewable through said transflective reflector by the driver of the vehicle when said information display is not displaying information;

    wherein said reflective element provides a field of view rearward of the vehicle to a driver of the vehicle when said interior rearview mirror assembly is normally mounted in the vehicle, and wherein a mounting structure mounts said mirror casing to an interior portion of the vehicle, and wherein said mirror casing is adjustable relative to the interior portion of the vehicle via at least one pivot element of said mounting structure to adjust the rearward field of view of said reflective element when said interior rearview mirror assembly is normally mounted in the vehicle;

    wherein said interior rearview mirror assembly comprises a compass sensor;

    said compass sensor comprising at least one magnetoresponsive sensing element;

    wherein said transflective reflective element comprises an electrochromic reflective element having an electrochromic medium sandwiched between two substrates;

    wherein said interior rearview mirror assembly comprises a control, and wherein said control comprises control circuitry;

    wherein at least a portion of said control circuitry is disposed within said mirror casing and behind said reflective element;

    wherein (i) said control is responsive to a sensing of a magnetic field by said at least one sensing element and (ii) said control circuitry comprises a photosensor;

    wherein said control determines a directional heading of the vehicle responsive to said sensing by said at least one sensing element, said control automatically compensating for a deviating magnetic field;

    wherein said control controls dimming of said electrochromic medium responsive to detection of light by said photosensor;

    wherein said information display displays the directional heading of the vehicle;

    wherein electrical wiring connects to at least the portion of said control circuitry that is disposed within said mirror casing and wherein said electrical wiring passes through said at least one pivot element of said mounting structure; and

    wherein said control circuitry comprises at least one of (i) an A/D converter, (ii) a D/A converter, (iii) memory, (iv) signal processing circuitry, (v) filtering circuitry, (vi) a display driver and (vii) a bus interface.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×