Energy efficient shading systems for windows
First Claim
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1. 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.
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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.
37 Citations
19 Claims
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1. 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;
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification