Phosphor for phosphor-converted semiconductor light emitting...

Details Phosphor for phosphor-converted semiconductor light emitting... Phosphor for phosphor-converted semiconductor light emitting...

2004-04-21

2008-12-09

Williams, Joseph L (Department: 2889)

Electric lamp or space discharge component or device manufacturi

Process

With assembly or disassembly

C445S050000, C257S098000

Reexamination Certificate

active

07462086

ABSTRACT:
A semiconductor light emitting device comprising a light emitting layer configured to emit light of a first wavelength disposed between an n-type region and a p-type region is combined with a cerium-doped garnet phosphor having a wider excitation spectrum than conventional cerium-doped garnet phosphors. In some embodiments, the phosphor has a cerium concentration between about 4 mol % and about 8 mol %.

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patent: 6069440 (2000-05-01), Shimizu et al.
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patent: 6501102 (2002-12-01), Mueller-Mach et al.
patent: 6921928 (2005-07-01), Sonobe
patent: WO 00/33390 (2000-06-01), None
patent: WO 2004/079790 (2004-09-01), None
patent: WO 2004/084261 (2004-09-01), None
European Search Report, 3 pages, Oct. 20, 2005 published.

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