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    • 1. 发明授权
    • Light emitting device, phosphor, and method for preparing phosphor
    • 发光装置,荧光体及荧光体的制造方法
    • US07511411B2
    • 2009-03-31
    • US10533688
    • 2003-11-07
    • Tadashi MarutaHiroto Tamaki
    • Tadashi MarutaHiroto Tamaki
    • H01J1/62
    • H01L33/502C09K11/0883C09K11/7734C09K11/7735C09K11/7792H01L2224/48091H01L2224/48247H01L2224/48257H01L2224/49107H01L2924/00014
    • A surface of a phosphor particle is coated with a coating member made of a material that is different from the phosphor in chemical vapor-phase reaction. The coating member is made of any of metal oxide, metal nitride and metal oxynitride. The coating member coats the surface of the phosphor with a substantially smooth film, or is formed such that a large number of fine particles, which are relatively smaller than the phosphor particle, aggregate to coat the whole surface of the phosphor particle. The coating member contains at least one metallic element selected from the group including Al, Si, and rare earth elements. In addition, the phosphor is a transparent water-soluble phosphor and is an alkaline-earth silicon-nitride phosphor, an alkaline-earth silicon oxynitride phosphor, or the like. A BET value of the coated phosphor is 1.0 to 10 times the BET value before coating. The average thickness of the coating is 10 nm to 500 nm.
    • 荧光体颗粒的表面涂覆有由化学气相反应中与荧光体不同的材料制成的涂层构件。 涂层构件由金属氧化物,金属氮化物和金属氮氧化物中的任一种制成。 涂布部件以基本上平滑的膜包覆荧光体的表面,或者形成为使得与荧光体粒子相对较小的大量微粒聚集以涂覆荧光体粒子的整个表面。 涂层构件含有至少一种选自包括Al,Si和稀土元素的金属元素。 此外,荧光体是透明的水溶性荧光体,是碱土金属氮化镓荧光体,碱土金属氮氧化物荧光体等。 涂布的荧光体的BET值为涂布前的BET值的1.0〜10倍。 涂层的平均厚度为10nm至500nm。
    • 2. 发明申请
    • Light emitting device, phosphor, and method for preparing phosphor
    • 发光装置,荧光体及荧光体的制造方法
    • US20060001352A1
    • 2006-01-05
    • US10533688
    • 2003-11-07
    • Tadashi MarutaHiroto Tamaki
    • Tadashi MarutaHiroto Tamaki
    • H01J11/02C09K11/08
    • H01L33/502C09K11/0883C09K11/7734C09K11/7735C09K11/7792H01L2224/48091H01L2224/48247H01L2224/48257H01L2224/49107H01L2924/00014
    • The surface of a phosphor is coated with a coating member made of a material different from the phosphor in chemical vapor-phase reaction. The coating member is made of any of metal oxide, metal nitride and metal oxynitride. The coating member coats the surface of the phosphor whereby having a substantially smooth film, or is formed such that a large number of fine particles relatively smaller than the phosphor aggregate to coat the whole surface of the phosphor. The coating member contains at least one metallic element selected from the group consisting of Al, Si, and rare earth elements. In addition, the phosphor is a transparent water-soluble phosphor and is an alkaline-earth silicon-nitride phosphor, an alkaline-earth silicon oxynitride phosphor, or the like. The BET value of the coated phosphor is 1.0 to 10 times the BET value before coating. The average thickness of the coating is 10 nm to 500 nm.
    • 在化学气相反应中,由不同于荧光体的材料制成的涂层部件涂覆荧光体的表面。 涂层构件由金属氧化物,金属氮化物和金属氮氧化物中的任一种制成。 涂覆部件涂覆荧光体的表面,由此具有基本上平滑的膜,或者形成为大量比荧光体聚集体更小的细颗粒以涂覆荧光体的整个表面。 涂层构件包含至少一种选自Al,Si和稀土元素的金属元素。 此外,荧光体是透明的水溶性荧光体,是碱土金属氮化镓荧光体,碱土金属氮氧化物荧光体等。 被覆荧光体的BET值为涂布前的BET值的1.0〜10倍。 涂层的平均厚度为10nm至500nm。