Patent ID: 8422113

Claim:
A panel comprising: a transparent substrate; a plurality of thermochromic layers on the transparent substrate; and a plurality of dielectric layers stacked with the thermochromic layers, wherein the panel transmits a first amount of light therethrough at a temperature less than a transition temperature of at least one thermochromic layer of the plurality of thermochromic layers, and the panel transmits a second amount of light therethrough at a temperature greater than the transition temperature of the at least one thermochromic layer, the first amount of light being greater than the second amount of light, and wherein a dielectric layer of the plurality of dielectric layers is between the transparent substrate and a first thermochromic layer of the plurality of thermochromic layers that is adjacent the transparent substrate, and another dielectric layer of the plurality of dielectric layers is between the first thermochromic layer and a second thermochromic layer of the plurality of thermochromic layers.