Resilient deformable air valve

An air valve for an air-cooled enclosure for an apparatus that generates heat and electromagnetic radiation, the enclosure having a plurality of walls, comprising:

• a panel to serve as at least a portion of one wall of the enclosure, the panel having at least one substantially circular first aperture, the first aperture having a first radius;
• a first sheet and a second sheet adhesively attached on the panel, the first and second sheets being deformable and resilient, and having a conductive film on one surface;
• the first and second sheets overlying to form a second aperture, the second aperture being defined by a plurality of first leaves associated with the first sheet and second leaves associated with the second sheet extending inwardly a particular distance from a substantially circular perimeter, the perimeter having a second radius substantially equal to the first radius, the particular distance being less than the second radius;
• wherein each of the plurality of first and second leaves includes a base end at the perimeter and an opposite, inner end, and sides of adjacent first and second leaves abut each other at the base end at the perimeter;
• wherein the first and second leaves are curved, having a concave side edge and an opposite convex side edge extending inwardly from the base end at the perimeter towards the center point of the first aperture, the concave side edge and convex side edge meeting at a rounded point to create the opposite inner end;
• wherein the first and second leaves lie in a plane parallel to the panel and the second aperture has a first diameter and a first depth in an un-deformed state;
• wherein the first and second leaves deform in response to air flow, transitioning to a deformed state, flexing out of the plane, the second aperture having a second diameter and a second depth in the deformed state, the second diameter being greater than the first diameter and the second depth being greater than the first depth;
• wherein the second leaves cover gaps generated in between the first leaves when in the deformed state;
• and
• wherein the first and second leaves transition to the un-deformed state in response to an absence of air flow.