Phosphor and manufacturing method therefore, and light...

Details Phosphor and manufacturing method therefore, and light... Phosphor and manufacturing method therefore, and light...

2006-07-14

2011-11-22

Koslow, Carol M (Department: 1734)

Compositions

Inorganic luminescent compositions

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

C252S30160F, C257S098000, C313S487000, C313S503000

Reexamination Certificate

active

08062549

ABSTRACT:
To provide a phosphor for manufacturing an one chip type LED illumination, etc, by combining a near ultraviolet/ultraviolet LED and a blue LED, and having an excellent emission efficiency including luminance. The phosphor is given as a general composition formula expressed by MmAaBbOoNn:Z, (where element M is one or more kinds of elements having bivalent valency, element A is one or more kinds of elements having tervalent valency, element B is one or more kinds of elements having tetravalent valency, O is oxygen, N is nitrogen, and element Z is one or more kinds of elements acting as an activator.), satisfying a=(1+x)×m, b=(4−x)×m, o=x×m, n=(7−x)×m, 0≦x≦1, wherein when excited by light in a wavelength range from 300 nm to 500 nm, the phosphor has an emission spectrum with a peak wavelength in a range from 500 nm to 620 nm.

REFERENCES:
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Oct. 1, 2010 European Search Report issued in EP 06 78 1134.
Chinese Office Action issued Oct. 18, 2010, in Patent Application No. 200680035715.4 (with English-language translation).

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