Tubular skylight dome with variable prism

Details Tubular skylight dome with variable prism Tubular skylight dome with variable prism

2005-10-03

2009-06-16

Canfield, Robert J (Department: 3635)

Static structures (e.g., buildings)

Cupola or skylight

C359S591000, C359S743000, C362S001000, C362S002000, C362S145000

Reexamination Certificate

active

07546709

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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