Variable reflectance mirrors and windows

  • US 7,916,380 B2
  • Filed: 01/22/2010
  • Issued: 03/29/2011
  • Est. Priority Date: 07/12/2004
  • Status: Active Grant
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First Claim
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1. An automotive rearview assembly having a front, the assembly comprising a switchable mirror system configured to have a non-transitory changeable reflectance, the switchable mirror system includinga plurality of substrates disposed sequentially in parallel and spaced-apart relationship so as to form a plurality of chambers, each chamber defined by opposing surfaces of two sequentially disposed substrates and a seal disposed therebetween, each of the opposing surfaces having an electrically conductive layer deposited thereon, each chamber containing a corresponding electro-optical medium that is in electrical communication with adjacent electrically conductive layers,wherein at least one chamber is configured to define a voltage-switchable reflective polarizer, andwherein the changeable reflectance includes at least three levels of reflectance respectively corresponding to at least three reflectance modes of operation of the switchable mirror system.

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