06936857 is referenced by 171 patents and cites 16 patents.

A light source including a specific LED and phosphor combination capable of emitting white light for direct illumination. In one embodiment, the light source includes an LED chip emitting in the 460-470 nm range radiationally coupled to a phosphor comprising Ca8Mg(SiO4)4Cl2:Eu2+,Mn2+. In a second embodiment, the light source includes an LED chip emitting at about 430 nm and a phosphor comprising a blend of Sr4Al14O25:Eu2+ (SAE) and a second phosphor having the formula(Tb1-x-yAxREy)3DzO12, where A is a member selected from the group consisting of Y, La, Gd, and Sm; RE is a member selected from the group consisting of Ce, Pr, Nd, Sm, Eu, Gd, Dy, Ho, Er, Tm, Yb, and Lu; D is a member selected from the group consisting of Al, Ga, and In; x is in the range from 0 to about 0.5, y is in the range from about 0 to about 0.2, and z is in the range from about 4 to about 5. Both embodiments produce light having the coordinates x=0.240-0.260 and y=0.340-0.360 on the CIE chromaticity diagram.

Title
White light LED device
Application Number
10/368115
Publication Number
6936857 (B2)
Application Date
February 18, 2003
Publication Date
August 30, 2005
Inventor
Holly Comanzo
Niskayuna
NY, US
Alok Srivastava
Niskayuna
NY, US
Zena R Brown
Beachwood
OH, US
Anant Achyut Setlur
Niskayuna
NY, US
Daniel Darcy Doxsee
Sagamore Hills
OH, US
Agent
Fay Sharpe Fagan Minnich & McKee
Assignee
General Electric Company
NY, US
GELcore
OH, US
IPC
H01J 063/04
H01J 001/62
H01L 029/82
H01L 033/00
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