Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
October 20, 2009
Patent Application Number
11338764
Date Filed
January 25, 2006
Patent Primary Examiner
Patent 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 WO3 and a particle size distribution of WO3 is such that a weight of WO3 whose 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.
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