INTERIOR REARVIEW MIRROR SYSTEM WITH COMPASS

  • US 20090231741A1
  • Filed: 05/28/2009
  • Published: 09/17/2009
  • Est. Priority Date: 06/06/2002
  • Status: Active Grant
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First Claim
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1. An information mirror system for a vehicle, said information mirror system comprising:

  • an interior rearview mirror assembly having a mirror housing and a transflective reflective element;

    wherein said transflective reflective element comprises an electrochromic transflective reflective element having a transflective mirror reflector that is partially transmissive of light and partially reflective of light incident thereon;

    wherein said mirror reflector comprises a metal thin film layer;

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

    wherein said mirror housing is adjustably mounted at an interior portion of the vehicle via a pivot mounting arrangement;

    wherein adjustment of said mirror housing via said pivot mounting arrangement adjusts a rearward field of view of said transflective reflective element when said interior rearview mirror assembly is normally mounted in a vehicle equipped with said information mirror system;

    an information display operable to display at least one of (a) video information, (b) text information and (c) iconistic information;

    wherein said information display is disposed in said mirror housing rearward of said transflective mirror reflector of said transflective reflective element, wherein information displayed by said information display is viewable by a driver of the equipped vehicle viewing through said transflective mirror reflector of said transflective reflective element when said information display is displaying information and wherein, when said information display is not displaying information, the presence of said information display behind said transflective mirror reflector of said transflective reflective element is substantially not discerned by a driver of the equipped vehicle normally viewing said transflective reflective element when operating the equipped vehicle;

    wherein said information display comprises at least one of (a) a multi-element display, (b) a vacuum fluorescent display, (c) a light emitting diode display, (d) a organic light emitting diode display, (e) a liquid crystal display, (f) a electro-luminescent display and (g) a video screen;

    a compass sensor disposed in said mirror housing rearward of said transflective reflective element, wherein said compass sensor adjusts in tandem with said transflective reflective element when the driver of the vehicle adjusts said mirror housing to adjust a rearward field of view of the driver when viewing said transflective reflective element when said mirror assembly is normally mounted in the vehicle;

    compass circuitry responsive to said compass sensor for determining a directional heading of the vehicle;

    wherein said information display comprises a compass display and wherein said compass display is operable to display said directional heading to the driver of equipped vehicle; and

    wherein said compass circuitry at least partially compensates for movement of said compass sensor caused by adjustment of said mirror housing.

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