Coated luminescent material and light-emitting device having...

Details Coated luminescent material and light-emitting device having... Coated luminescent material and light-emitting device having...

2008-03-18

2008-03-18

Patel, Ashok (Department: 2879)

Electric lamp and discharge devices

With luminescent solid or liquid material

With gaseous discharge medium

C313S486000, C313S487000, C313S512000, C313S570000, C313S572000

Reexamination Certificate

active

07345413

ABSTRACT:
A coated luminescent material having a luminescent material powder formed by grains, the luminescent grains being coated, and the coating being at most 5 nm, preferably at most 2 nm.

REFERENCES:
patent: 5998925 (1999-12-01), Shimizu et al.
patent: 7045956 (2006-05-01), Braune et al.
patent: 2002/0105266 (2002-08-01), Juestel et al.
patent: 2002/0149001 (2002-10-01), Ellens et al.
patent: 2003/0146690 (2003-08-01), Ellens et al.
patent: 2004/0166320 (2004-08-01), Kobusch
patent: WO 01/93341 (2001-12-01), None

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