Interior rearview mirror system incorporating a directional information display

  • US 6,642,851 B2
  • Filed: 11/15/2001
  • Issued: 11/04/2003
  • Est. Priority Date: 02/18/1998
  • Status: Expired due to Term
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First Claim
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1. An interior rearview mirror system for a vehicle, said interior rearview mirror system comprising:

  • an interior rearview mirror assembly, said interior rearview mirror assembly comprising a reflective mirror element housed in a mirror housing, said housing connecting to a mirror support by a pivot member, said mirror housing adjustable by a driver of the vehicle in order to set a rearward field of view of said reflective element, said mirror support comprising a mount for attaching said assembly to a portion of the interior of the vehicle;

    said reflective element comprising an electrochromic reflective element having a reflectivity which is variable in accordance with a voltage applied thereto;

    said interior rearview mirror assembly further comprising a directional information display, said directional information display displaying directional information derived from a compass sensor, said compass sensor disposed within said mirror housing of said rearview mirror assembly, said compass sensor comprising a magneto-responsive sensor selected from the group consisting of a magneto-resistive sensor, a magneto-capacitive sensor and a magneto-inductive sensor; and

    wherein said compass sensor is mounted on a circuit member along with reflectance variation circuitry for varying the reflectivity of said electrochromic reflective element.

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