Light emitting apparatus

Details Light emitting apparatus Light emitting apparatus

2007-08-02

2010-10-05

Koslow, C. Melissa (Department: 1793)

Compositions

Inorganic luminescent compositions

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

C252S30140R, C313S503000, C257S098000

Reexamination Certificate

active

07807071

ABSTRACT:
A light emitting apparatus with high emission intensity and that is superior in weather resistance and reliability is obtained. The light emitting apparatus includes a light source and a wavelength-converting member for converting the wavelength of light emitted from the light source, wherein the wavelength-converting member contains a phosphor subjected to a cleaning treatment and/or a coating treatment, in a glass material having a composition of SiO2: 30 to 50%, Li2O: 0 to 15%, Na2O: 0 to 10%, K2O: 0 to 10%, Li2O +Na2O+K2O: 20 to 30%, B2O3: 5 to 15%, MgO: 0 to 10%, BaO: 0 to 10%, CaO: 0 to 10%, SrO: 0 to 10%, Al2O3: 0 to 10%, ZnO: 0 to 15%, TiO2: 10 to 20%, Nb205: 1 to 5%, La2O3: 0 to 5%, and TiO2+Nb2O5+La2O3: 11 to 20% by mole percentage.

REFERENCES:
patent: 5998925 (1999-12-01), Shimizu et al.
patent: 7078732 (2006-07-01), Reeh et al.
patent: 2006/0113906 (2006-06-01), Ogawa
patent: 2008/0035887 (2008-02-01), Iwao et al.
patent: 2003-258308 (2003-09-01), None
patent: 2004-161871 (2004-06-01), None
patent: WO 2005103199 (2005-11-01), None

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