Inorganic fluorescent material used for solid-state light...

Details Inorganic fluorescent material used for solid-state light... Inorganic fluorescent material used for solid-state light...

2006-11-14

2006-11-14

Patel, Nimeshkumar D. (Department: 2879)

Compositions

Inorganic luminescent compositions

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

C313S503000, C313S502000, C313S498000

Reexamination Certificate

active

07135129

ABSTRACT:
An inorganic fluorescent material for solid-state light source is associated with a GaInN heterojunction blue solid-state light source to form a white light source. The fluorescent material is represented by the general formula of (Y1-x-y-z-q,Gdx,Dyy,Ybz,Erq,Cep)α(Al1-n-m-k,Gan,Sck,Inl)βO12, wherein α is in the range of 2.97–3.02, β is in the range of 4.98–5.02, x is in the range of 0.2–0.65, y is in the range of 0.001–0.05, z is in the range of 0.01–0.05, q is in the range of 0.001–0.05, p is in the range of 0.015–0.1, k is in the range of 0.01–0.6, n is in the range of 0.01–0.45, and l is in the range of 0.01–0.1. The short-wavelength light emitted from the GaInN heterojunction blue solid-state light source is mixed with a wide-bandwidth light emitted from the fluorescent material to generate a mixed light of a wavelength of about 535 nm–590 nm.

REFERENCES:
patent: 5998925 (1999-12-01), Shimizu et al.

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