Phosphor and vacuum ultraviolet excited light-emitting device

Details Phosphor and vacuum ultraviolet excited light-emitting device Phosphor and vacuum ultraviolet excited light-emitting device

2004-05-13

2009-11-24

Lorengo, Jerry (Department: 1793)

Compositions

Inorganic luminescent compositions

Compositions containing halogen; e.g., halides and oxyhalides

C257S431000

Reexamination Certificate

active

07622057

ABSTRACT:
A phosphor and a vacuum ultraviolet excited light-emitting device are disclosed. The phosphor comprises a compound represented by the following formula (1)in-line-formulae description="In-line Formulae" end="lead"?Ca1−a−bSraEubMgSi2O6  (1)in-line-formulae description="In-line Formulae" end="tail"?wherein 0.1<a≦0.35 and 0.003≦b≦0.02. The phosphor is excited by vacuum ultraviolet and emits blue light with high brightness. The vacuum ultraviolet excited light-emitting device comprises the above phosphor.

REFERENCES:
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Takashi Kunimoto et al., “Feasibility Study of Silicate Phosphor CaMgSi2O6:Eu2+as Blue PDP Phosphors”,IEICE Trans. Electron., vol. E85-C, No. 11, Nov. 2002, pp. 1888-1894.
Database WPI Week 200340, Derwent Publications Ltd., London, GB, AN 2003-430443, XP002459090.

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