07255469 is referenced by 93 patents and cites 39 patents.

An illumination system including a light source, a light guide including an output surface, emissive material positioned between the light source and the output surface of the light guide, and an interference reflector positioned between the emissive material and the output surface of the light guide is disclosed. The light source emits light having a first optical characteristic. The emissive material emits light having a second optical characteristic when illuminated with light having the first optical characteristic. The interference reflector substantially transmits light having the second optical characteristic and substantially reflects light having the first optical characteristic.

Title
Phosphor based illumination system having a light guide and an interference reflector
Application Number
10/884720
Publication Number
7255469 (B2)
Application Date
June 30, 2004
Publication Date
August 14, 2007
Inventor
James E Watson
Maplewood
MN, US
Kenneth A Epstein
St. Paul
MN, US
Michael F Weber
Shoreview
MN, US
Andrew J Ouderkirk
Woodbury
MN, US
John A Wheatley
Lake Elmo
MN, US
Agent
Jay R Pralle
Assignee
3M Innovative Properties Company
MN, US
IPC
F21V 7/04
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