Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Paul Jaster0
John Futhey0
Date of Patent
June 16, 2009
Patent Application Number
11242460
Date Filed
October 3, 2005
Patent Citations Received
Patent Primary Examiner
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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