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    WHITE LIGHT EMITTING LAMP, AND WHITE LIGHT LED LIGHTING DEVICE EQUIPPED WITH SAME
    6.
    发明公开
    WHITE LIGHT EMITTING LAMP, AND WHITE LIGHT LED LIGHTING DEVICE EQUIPPED WITH SAME 有权
    智能照明灯泡 - LED照明灯

    公开(公告)号：EP2549554A1

    公开(公告)日：2013-01-23

    申请号：EP11756217.3

    申请日：2011-03-14

    申请人： Kabushiki Kaisha Toshiba ,  Toshiba Materials Co., Ltd.

    发明人： YAMAKAWA, Masahiko ,  SHIRAKAWA, Yasuhiro ,  USUI, Daichi

    IPC分类号： H01L33/50 ,  C09K11/08 ,  C09K11/59 ,  C09K11/64 ,  C09K11/66 ,  C09K11/76

    CPC分类号： C09K11/0883 ,  C09K11/663 ,  C09K11/675 ,  C09K11/7734 ,  C09K11/7739 ,  C09K11/7789 ,  H01L33/502 ,  H01L33/504 ,  H01L2224/48091 ,  H01L2224/73265 ,  H01L2224/8592 ,  H01L2924/181 ,  Y02B20/181 ,  H01L2924/00014 ,  H01L2924/00012

    摘要： An object is to provide a white light emitting lamp 1 comprising: a semiconductor light emitting element 2 which is placed on a board 3 and emits ultraviolet light or blue light; and a light emitting portion that is formed so as to cover a light emitting surface of the semiconductor light emitting element 2, the light emitting portion containing a blue phosphor B, a green phosphor G, a red phosphor R and a deep red phosphor DR that are excited by the light emitted from the semiconductor light emitting element 2 to respectively emit blue light, green light, red light and a deep red light, the white light emitting lamp 1 emitting white light by mixing light emission colors from the blue phosphor B, the green phosphor G, the red phosphor R and a deep red phosphor DR with one another, wherein the deep red phosphor DR has a main emission peak in a longer wavelength region than a main emission peak of the red phosphor, the red phosphor R comprises at least one component selected from: a europium-activated SiAlON phosphor and a europium-activated CASN phosphor each having a predetermined composition, while the deep red phosphor DR comprises a manganese-activated magnesium florogermanate phosphor having a predetermined composition. According to the above white light emitting lamp, when the BGR phosphor is used in combination with the semiconductor element such as an LED or the like, and a deep red phosphor DR having a predetermined composition is further added in addition to the red phosphor R, so that luminance characteristics can be improved, whereby there can be provided a white light emitting lamp excellent in both high luminance and high color rendering properties.

    摘要翻译： 本发明的目的是提供一种白光发光灯1，其包括：半导体发光元件2，其被放置在基板3上并发射紫外线或蓝光; 以及形成为覆盖半导体发光元件2的发光面的发光部，发光部包含蓝色荧光体B，绿色荧光体G，红色荧光体R和深红色荧光体DR，其中， 被从半导体发光元件2发射的光分别激发，分别发出蓝光，绿光，红光和深红光，白光发光灯1通过混合来自蓝色荧光体B的发光颜色而发出白光， 绿色荧光体G，红色荧光体R和深红色荧光体DR，其中，深红色荧光体DR具有比红色荧光体的主发光峰长的波长区域的主发光峰，红色荧光体R包含 选自铕激活的SiAlON荧光体和铕活化的CASN荧光体中的至少一种成分，各自具有预定的组成，而深红色荧光体DR包含锰活化的磁体 具有预定组成的氟硅藻土荧光粉。 根据上述白色发光灯，当将BGR荧光体与诸如LED等的半导体元件组合使用时，除了红色荧光体R之外，还添加具有预定组成的深红色荧光体DR， 从而可以提高亮度特性，由此可以提供高亮度和高显色性优异的白光发光灯。