Fluorescent substance and light-emitting device

Details Fluorescent substance and light-emitting device Fluorescent substance and light-emitting device

2006-05-31

2009-12-29

Williams, Joseph L (Department: 2889)

Electric lamp and discharge devices

With luminescent solid or liquid material

With gaseous discharge medium

C313S512000, C313S495000, C313S461000

Reexamination Certificate

active

07638934

ABSTRACT:
A fluorescent substance is provided, with includes a matrix composed of a compound having an AlN polytypoid structure represented by the following general formula (1), and a luminescence center element:in-line-formulae description="In-line Formulae" end="lead"?(Al,M)a(N,X)b  (1)in-line-formulae description="In-line Formulae" end="tail"?wherein, M is at least one metal excluding Al, X is at least one non-metal excluding N, and a and b are positive values.

REFERENCES:
patent: 2006/0011936 (2006-01-01), Hiramatsu et al.
patent: 2005-48105 (2005-02-01), None
patent: WO 2006/016711 (2006-02-01), None
U.S. Appl. No. 12/207,771, filed Sep. 10, 2008, Fukuda et al.
B.L. Abrams, et al., “Electron beam-induced degradation of zinc sulfide-based phosphors”, Surface Science, vol. 451, 2000, pp. 174-181.

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