06538371 is referenced by 158 patents.

There is provided a white light illumination system including a blue LED and a luminescent material. The system color output is improved when a line connecting the LED color coordinates and the luminescent material color coordinates approximates the Black Body Locus on the CIE chromatically diagram. The LED may have a peak emission wavelength between 470 and 500 nm. The luminescent material may be (Y

1−x−z

Gd

x

Ce

z

)

3

Al

5

O

12

, where 0.7>x>0.4 and 0.1>z>0.

Title
White light illumination system with improved color output
Application Number
9/534575
Publication Number
6538371 (B1)
Application Date
March 27, 2000
Publication Date
March 25, 2003
Inventor
Holly Ann Comanzo
Niskayuna
NY, US
Alok Mani Srivastava
Niskayuna
NY, US
Anil Raj Duggal
Niskayuna
NY, US
Agent
Foley & Lardner
US
Assignee
The General Electric Company
NY, US
IPC
H01J 1/63
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