Application independent operational controls of a suspended particle device

  • US 8,098,421 B2
  • Filed: 08/13/2010
  • Issued: 01/17/2012
  • Est. Priority Date: 09/08/2005
  • Status: Active Grant
First Claim
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1. A controller controlling the opacity of a Suspended Particle Device (SPD), wherein there is stored within the controller a first lookup table providing a mapping between received commands to change the opacity of the SPD and drive giving rise to various opacity values, wherein there exists means to specify profiles for setting opacity in the summer and winter months and further means to determine which profile is currently in effect.

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