US Patent 7546709 Tubular skylight dome with variable prism

Patent 7546709 was granted and assigned to Solatube International, Inc. on June, 2009 by the United States Patent and Trademark Office.

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Patent Inventor Names

John Futhey0

Paul Jaster0

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Patent abstract

The inside surface of a cover for a skylight is molded to have a variable prism that directs low-angle light into the skylight tube and that reflects away some high-angle light, to achieve a more constant light output over the course of the day. The prism is established by a series of circular parallel grooves, with grooves nearer the apex of the cover having cross-sections that are different than the cross-sections of grooves nearer the periphery of the cover.

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Official Website

https://pdfpiw.uspto.gov/.piw?Docid=07546709

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