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    • 53. 发明公开
    • Fluorescent lamp with single phosphor layer
    • Leuchtstoffl ee ee einzigen Leuchtstoffschicht
    • EP1339093A2
    • 2003-08-27
    • EP03251049.7
    • 2003-02-21
    • GENERAL ELECTRIC COMPANY
    • Soules, Thomas F.Jansma, Jon B.
    • H01J61/44C09K11/76
    • C09K11/76H01J61/44Y02B20/181
    • A fluorescent lamp (10) includes a coating (16) comprising a blue-green emitting halophosphate in combination with rare-earth phosphors, such as a red-emitting rare earth phosphor and a green-emitting rare earth phosphor. The blue-green emitting halophosphate replaces some or all of the blue-emitting rare earth phosphor conventionally used in lamps designed to have a high color rendition index (CRI). This combination of phosphors is preferably blended with a white-emitting halophosphate in a ratio of about 1:3, providing a blend which is suitable for providing a single coating layer for the lamp. The single layer coated lamp has a CRI which is comparable to that of a lamp formed with a conventional two phosphor layer coating process, without appreciably increasing the content of rare earth phosphors used.
    • 荧光灯(10)包括与稀土荧光体(如红色发射稀土荧光体和绿色发光稀土荧光体)组合的包含蓝绿色发射卤代磷酸盐的涂层(16)。 蓝绿色发光卤代磷酸盐代替设计成具有高色彩再现指数(CRI)的灯中常规使用的蓝色发射稀土荧光体的一些或全部。 磷光体的这种组合优选以约1:3的比例与发白的卤代磷酸盐混合,提供适合于为灯提供单一涂层的共混物。 单层涂覆的灯具有与用常规的两个荧光体层涂覆工艺形成的灯的CRI相当的CRI,而没有明显增加所使用的稀土荧光体的含量。
    • 59. 发明公开
    • Pre-water based suspension phosphor treatment process
    • 维尔法赫恩zur Vorbehandlung eines Wassersuspensionsphosphors。
    • EP0279254A2
    • 1988-08-24
    • EP88101328.8
    • 1988-01-29
    • GTE PRODUCTS CORPORATION
    • Peters, Thomas E.Hunt, Roger B., Jr.
    • C09K11/88C09K11/76C09K11/02C09K11/08H01J61/46H01J61/44
    • H01J61/46C09K11/025C09K11/08C09K11/595C09K11/76H01J61/44
    • A method for eliminating carbonaceous contaminants and preventing the hydration/solubilization of the oxide coating of a phosphor is described. The method involves the annealing of the oxide coated phosphor at a tempera­ture and for a period sufficient to preclude adversely affecting the protective oxide coating on the phosphor during subsequent water-based suspension processing without detrimentally altering the phosphor. After annealing the phosphor is cooled and then added to a water-based suspension. The optimum conditions for annealing a manganese activated zinc silicate phosphor or a calcium halophosphate phosphor having a protective aluminum oxide coating are the combination of a tempera­ture between about 700°C and about 850°C and for a period of time from about 15 minutes to about 20 hours.
    • 描述了消除碳质污染物并防止磷光体的氧化物涂层的水合/溶解的方法。 该方法包括在随后的水基悬浮处理期间在足以防止不利地影响荧光体上的保护性氧化物涂层的温度和时间期间对氧化物涂覆的荧光体进行退火,而不会有害地改变荧光体。 退火后,将荧光体冷却,然后加入到水基悬浮液中。 退火锰活化硅酸锌荧光体或具有保护性氧化铝涂层的卤代磷酸钙荧光体的最佳条件是温度在约700℃至约850℃之间并且持续约15分钟至约 20小时。