Mirror assembly with formed reflective element substrate

  • US 9,487,143 B2
  • Filed: 12/16/2014
  • Issued: 11/08/2016
  • Est. Priority Date: 07/18/2012
  • Status: Active Grant
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First Claim
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1. An exterior rearview mirror assembly for a vehicle, said exterior rearview mirror assembly comprising:

  • a mirror head portion;

    a reflective element accommodated by said mirror head portion, said reflective element comprising a free-formed bent glass substrate and a mirror reflector coated at a surface of said free-formed bent glass substrate;

    wherein said reflective element is configured to provide a rearward field of view of at least about 15 degrees relative to a side of a vehicle equipped with said exterior rearview mirror assembly and wherein said reflective element provides a substantially undistorted reflected image as viewed by a driver of the equipped vehicle;

    wherein said reflective element has a width dimension of less than about 15 cm and a height dimension of less than about 9 cm;

    wherein said free-formed bent glass substrate is formed utilizing a bending element having a free form curvature;

    wherein said reflective element, when accommodated by said mirror head portion at the side of the equipped vehicle and as viewed by the driver when normally operating the equipped vehicle, comprises an image plane that establishes an object plane; and

    wherein coordinates of the image plane and of the object plane are determined, at least in part, by the mirror size and by the free form curvature of the bending element used to form said free-formed bent glass substrate.

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