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    • 7. 发明授权
    • LIGHT EMITTING DEVICE WITH BA2MGSI2O7:EU2+, BA2SIO4:EU2+, OR (SRXCAY BA1-X-Y)(A1ZGA1-Z)2SR:EU2+PHOSPHORS
    • 具有BA2MGSI2O7的发光装置:EU2 +,BA2SIO4:EU2 +,OR(SRXCAY BA1-X-Y)(A1ZGA1-Z)2SR:EU2 +磷
    • US06429583B1
    • 2002-08-06
    • US09203206
    • 1998-11-30
    • Lionel Monty LevinsonAlok Mani Srivastava
    • Lionel Monty LevinsonAlok Mani Srivastava
    • H01J162
    • H01L33/502C09K11/7734H01L33/44H01L2224/48091H01L2224/48247H01L2224/48257H01L2224/73265H01L2933/0091H05B33/14H01L2924/00014
    • A lamp comprises a light emitting element such as a light emitting diode or a laser diode which emits blue light, and a phosphor composition which absorbs the blue light having a first spectrum from the light emitting element and emits light having a second spectrum. The phosphor composition comprises at least one of Ba2MgSi2O7:Eu2+; Ba2SiO4:Eu2+; and (Sr,Ca,Ba)(Al,Ga)2S4:Eu2+. The invention also relates to a light emitting element which emits blue light, and a phosphor composition which absorbs the blue light from the light emitting element having a first spectrum and emits light having a second spectrum, wherein the spectral luminous efficacy of light emitted by the lamp is at least 550 lumens per watt. The high spectral luminous efficacy of the output spectrum efficiently converts the power input to the lamp into lumens to provide a high brightness. For example the device luminous efficacy of the lamp can be 35-45 lumens output per watt of input electric power or more.
    • 一种灯包括发射蓝光的发光二极管或激光二极管等发光元件,以及从发光元件吸收具有第一光谱的蓝色光并发出具有第二光谱的光的荧光体组合物。 荧光体组合物包括Ba2MgSi2O7:Eu2 +中的至少一种; Ba2SiO4:Eu2 +; 和(Sr,Ca,Ba)(Al,Ga)2S4:Eu2 +。 本发明还涉及一种发射蓝光的发光元件和一种从具有第一光谱的发光元件吸收蓝色光并发射具有第二光谱的光的荧光体组合物,其中由 灯泡至少为550流明/瓦。 输出光谱的高光谱发光效率有效地将灯的功率输入转换成流明以提供高亮度。 例如,灯的装置发光效率可以是每瓦功率为35-45流明的输入电力或更多。