Title:
蛍光体、その製造方法および発光器具
Document Type and Number:
Japanese Patent JP5660471
Kind Code:
B2
Abstract:
A blue fluorescent material having excellent durability and a high luminance, especially one emitting a high-luminance light by the action of electron rays. The fluorescent material comprises inorganic crystals having a crystal structure which is an AlN crystalline, AlN polycrystalline, or AlN solid-solution crystalline structure. It is characterized in that the inorganic crystals contain at least europium in solution and have an oxygen content of 0.4 mass% or lower and that the fluorescent material emits fluorescence derived from divalent europium ions upon irradiation with an excitation source. More preferably, the fluorescent material contains a given metallic element and silicon. Also provided are a process for producing the fluorescent material and an illuminator including the blue fluorescent material.
Inventors:
広崎 尚登
Application Number:
JP2013014744A
Publication Date:
January 28, 2015
Filing Date:
January 29, 2013
Export Citation:
Assignee:
独立行政法人物質・材料研究機構
International Classes:
C09K11/65; C09K11/08; C09K11/64; F21V9/16; H01J11/42; H01J29/18; H01J29/20; H01L33/50