Passive skylight dome configured to increase light to increase collection at low sun elevation angles and to reduce light at high sun elevation angles
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United States of America Patent
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Aug 16, 2016
Grant Date -
Mar 17, 2016
app pub date -
Sep 16, 2015
filing date -
Sep 16, 2014
priority date (Note) -
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Abstract
The present subject matter comprises a simple, passive skylight dome with relatively tall partially vertical sides comprising partially transparent material which diffuses the transmitted light, and a mostly opaque sun shade near the top of the relatively tall partially vertical sides. The partially vertical sides are able to better intercept sunlight from low sun elevation angles than conventional horizontal skylights. The mostly opaque sun shade is able to block sunlight from high sun elevation angles to prevent such sunlight from entering the building below the dome. By enhancing the collection of low-sun-elevation-angle light, the subject matter improves the daylight performance of the skylight early and late in the day, and all day in the winter months. By reducing the collection of high-sun-elevation-angle light, the subject matter reduces the solar heat gain near solar noon in the summer months, thereby reducing air conditioning loads and related costs.
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