05655339 is referenced by 74 patents and cites 40 patents.

A tubular skylight having an improved dome improving the efficiency of the skylight. The dome includes an integral prism in a portion of its outer surface to reflect light downwardly through the skylight. The dome is hemispherical, and the prism includes a plurality of grooves extending along great circles that pass through the apex of the dome. The prism covers only an angular segment of the hemispherical dome; and the grooves stop short of the apex of the dome.

Title
Tubular skylight with improved dome
Application Number
8/694558
Publication Number
5655339
Application Date
August 9, 1996
Publication Date
August 12, 1997
Inventor
Ronald L Sitzema Jr
Ellsworth
MI, US
Gwen H Kramer
Charlevoix
MI, US
David A DeBlock
Holland
MI, US
Agent
Warner Norcross & Judd
Assignee
ODL Incorporated
MI, US
IPC
G02B 17/00
E04D 13/03
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