07946729 is referenced by 88 patents and cites 1053 patents.

An LED-based light for replacing a conventional fluorescent tube in a fixture is provided. The LED-based light includes an elongate light transmitting rod defining a bore and at least one LED positioned at one or both ends of the rod and oriented to produce light longitudinally into a portion of the rod radially outward of the bore. At least one connector is physically coupled to an end of the rod and electrically coupled to the at least one LED. The at least one connector is adapted for physical and electrical connection to the fixture. In operation, the directional light produced by the at least one LED is dispersed by way of reflection, refraction, and/or diffusion while traveling longitudinally through the rod to reduce the appearance of bright spots.

Title
Fluorescent tube replacement having longitudinally oriented LEDs
Application Number
12/183363
Publication Number
7946729 (B2)
Application Date
July 31, 2008
Publication Date
May 24, 2011
Inventor
David L Simon
Grosse Pointe Woods
MI, US
John Ivey
Farmington Hills
MI, US
Agent
Young Basile
Assignee
Altair Engineering
MI, US
IPC
F21V 19/04
View Original Source