07926975 is referenced by 89 patents and cites 994 patents.

A fluorescent light tube retrofit with light emitting diodes (LEDs) that evenly distribute light to avoid bright spots is disclosed. One LED lighting unit includes a tubular housing and a plurality of LED assemblies mounted about a circumference of the tubular housing. LEDs face inward from a mounting surface that is angled offset of the tube. Alternatively, at least one LED can be oriented to emit light parallel to a tangent of the housing into a light pipe that curves inside at least a portion of the tubular housing.

Title
Light distribution using a light emitting diode assembly
Application Number
12/724645
Publication Number
7926975 (B2)
Application Date
March 16, 2010
Publication Date
April 19, 2011
Inventor
Francis Palazzolo
Sterling Heights
MI, US
John Ivey
Farmington Hills
MI, US
Dennis Siemiet
Rochester Hills
MI, US
Agent
Young Basile
Assignee
Altair Engineering
MI, US
IPC
F21V 7/04
F21V 1/00
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