Orange-emitting phosphor

Details Orange-emitting phosphor Orange-emitting phosphor

2008-07-09

2009-08-25

Mayes, Melvin C (Department: 1793)

Electric lamp and discharge devices

With luminescent solid or liquid material

With gaseous discharge medium

C313S486000, C252S30160S, C252S30140H

Reexamination Certificate

active

07579765

ABSTRACT:
An orange-emitting phosphor that emits at a high luminance when being excited by blue light emitted by a blue light-emitting diode is provided. This orange-emitting phosphor is an alkaline-earth metal silicate-based phosphor represented by a general formula of a(Sr1-xEux(1-y)Ybxy)O.SiO2. In the formula, a is provided as 2.9≦a≦3.1, x is provided as 0.005≦x≦0.10, and y is provided as 0.001≦y≦0.1. An orange-emitting phosphor that emits orange at a high luminance and produces no harmful gas is provided.

REFERENCES:
patent: 2005/0168127 (2005-08-01), Shei et al.
patent: 2007/0085466 (2007-04-01), Shimomura et al.
patent: 10-242513 (1998-09-01), None
patent: 2002-060747 (2002-02-01), None
patent: 2006-036943 (2006-02-01), None
patent: 2006-514152 (2006-04-01), None

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