Energy efficient shading systems for windows
AssigneeUniversity of Cincinnati
InventorsKenneth A. Dean, John D. Rudolph
Life of this patent
Estimating the term…
Abstract
A shading assembly configured to have a first selectable state that is transmissive to more than 40% of solar light and reflects more than 35% of solar heat, a second selectable state that blocks more than 75% of the solar light and transmits more than 50% of the solar heat, and a third selectable state that transmits more than 50% of the solar light and more than 50% of the solar heat.
Claims19
A shading assembly that provides independent control of solar visible light and solar near-infrared heat transmitted through the shading assembly to achieve at least 4 selectable states, the shading assembly comprising a first retractably shade and a second retractable shade;
- wherein a first selectable state allows transmission of visible light through the shading assembly and rejects transmission of solar heat through the shading assembly through reflection,
- wherein a second selectable state absorbs or reflects visible solar light through the shading assembly and transmits solar heat through the shading assembly;
- wherein a third selectable state transmits both visible solar light and solar heat through the shading assembly;
- wherein a fourth selectable state absorbs or reflects both visible solar light and solar heat through the shading assembly;
- wherein the first selectable state is transmissive to more than 40% of visible solar light and reflects more than 35% of solar heat;
- wherein the second selectable state absorbs or reflects more than 75% of visible solar light and transmits more than 50% of solar heat;
- wherein the third selectable state transmits more than 50% of visible solar light and more than 50% of solar heat;
- wherein the fourth selectable state absorbs or reflects more than 75% of visible solar light and reflects more than 35% of solar heat;
- wherein the first shade and the second shade are configured to be deployable concurrently or individually to achieve said 4 selectable states.
Dependencies are inferred from the claim text.