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Enhanced thermochromic window which incorporates a film with multiple layers of alternating refractive index

  • US 9,128,307 B2
  • Filed: 02/20/2013
  • Issued: 09/08/2015
  • Est. Priority Date: 02/20/2012
  • Status: Active Grant
First Claim
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1. A window comprising more than one thermochromic layer wherein two of the thermochromic layers are separated by a film comprising multiple layers of polymer with alternating refractive index (MLARI) wherein the thermochromic layers each have a reversible change in absorbance of electromagnetic radiation such that the absorbance increases as the temperature of the thermochromic layer increases and the absorbance decreases as the temperature of the thermochromic layer decreases, and wherein the MLARI film reflects near infrared radiation.

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