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Title: Phosphors for LED lamps

Patent ·
OSTI ID:1093223
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A phosphor, a phosphor blend including the phosphor, a phosphor prepared by a process, and a lighting apparatus including the phosphor blend are disclosed. The phosphor has the formula (Ca.sub.1-p-qCe.sub.pK.sub.q).sub.xSc.sub.y(Si.sub.1-rGa.sub.r).sub.zO.su- b.12+.delta. or derived from a process followed using disclosed amounts of reactants. In the formula, (0<p.ltoreq.0.06); 0.ltoreq.q.ltoreq.0.06; 0.ltoreq.r.ltoreq.0.2; and -0.1.ltoreq..delta..ltoreq.0.4. In one embodiment, 3<x.ltoreq.3.1; 2.ltoreq.y.ltoreq.2.15; and 3.ltoreq.z.ltoreq.3.2. Similarly, in another embodiment, 3.ltoreq.x.ltoreq.3.1; 2<y.ltoreq.2.15; and 2.8.ltoreq.z.ltoreq.3.2.

Research Organization:
GE Global Research, Niskayuna, New York (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
EE003251
Assignee:
General Electric Company (Niskayuna, NY)
Patent Number(s):
8,506,104
Application Number:
13/432,461
OSTI ID:
1093223
Country of Publication:
United States
Language:
English

References (10)

Red line emitting phosphors for use in led applications patent January 2010
Crystal Chemistry and Luminescence of Ce3+-Doped Lu2CaMg2(Si,Ge)3O12 and Its Use in LED Based Lighting journal July 2006
Phosphor, light emitting device using phosphor, and display and lighting system using light emitting device patent March 2007
Garnet phosphor materials having enhanced spectral characteristics patent August 2006
Fluorescent material, fluorescent device using the same, and image display device and lighting equipment patent May 2010
Organic compounds for adjusting phosphor chromaticity patent September 2011
Carbonitride Based Phosphors and Light Emitting Devices Using the Same patent-application November 2011
Red-deficiency compensating phosphor light emitting device patent January 2004
Novel $\hbox{Eu}^{{2+}}$-Activated Glass Ceramics Precipitated With Green and Red Phosphors for High-Power White LED journal July 2009
Phosphor, light emitting device using phosphor, and display and lighting system using light emitting device patent September 2010

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