Phosphor and fluorescent luminous tube

Details Phosphor and fluorescent luminous tube Phosphor and fluorescent luminous tube

2006-01-25

2009-10-20

Koslow, C. Melissa (Department: 1793)

Compositions

Inorganic luminescent compositions

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

C313S486000, C428S403000, C428S404000

Reexamination Certificate

active

07604752

ABSTRACT:
A SrTiO3:Pr phosphor includes a SrTiO3:Pr phosphor material and an additive having one or more elements selected from the group consisting of W, Mo and V in a form of an elemental substance and/or a compound. A total amount of one or more elements included in the additive is in a range from 0.1 wt % to 30 wt % of the SrTiO3:Pr phosphor. The additive is WO3and a particle size distribution of WO3is such that a weight of WO3whose particle diameters are in a range from 0.2 to 0.4 μm is not less than 70% of a total weight of WO3. A fluorescent luminous tube includes the SrTiO3:Pr phosphor.

REFERENCES:
patent: 4680231 (1987-07-01), Yamaura et al.
patent: 5723224 (1998-03-01), Toki et al.
patent: 7071609 (2006-07-01), Tsuji et al.
patent: 2004/0227451 (2004-11-01), Tsuji et al.
patent: 1550541 (2004-12-01), None
patent: 10-302714 (1998-11-01), None
patent: 10-2004-0076528 (2004-09-01), None
Abstract for KR 2004-76528, Sep. 2004.

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