Luminescent material

Details Luminescent material Luminescent material

2010-08-31

2011-11-22

Koslow, Carol M (Department: 1734)

Compositions

Inorganic luminescent compositions

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

C313S503000, C313S486000, C257S098000

Reexamination Certificate

active

08062550

ABSTRACT:
A luminescent material is provided, which includes a compound having a composition represented by the following general formula (A):in-line-formulae description="In-line Formulae" end="lead"?(Sra1,Bab1,Cac1,Rev1,Euw1)2SiO4  (A)in-line-formulae description="In-line Formulae" end="tail"?wherein, Re is at least one selected from a group consisting of Pr and Dy, and a1, b1, c1, v1 and w1 satisfy following relationships:in-line-formulae description="In-line Formulae" end="lead"?a1+b1+c1+v1+w1=1  (1),in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?0≦a1/(1−v1−w1)≦1  (2),in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?0≦b1/(1−v1−w1)≦1  (3),in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?0≦c1/(1−v1−w1)≦1  (4),in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?0<v1≦0.15  (5),in-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?0<w1≦0.02  (6).in-line-formulae description="In-line Formulae" end="tail"?

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