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    • 9. 发明申请
    • Low-Pressure Mercury Vapor Discharge Lamp and Compact Fluorescent Lamp
    • 低压汞蒸气放电灯和紧凑型荧光灯
    • US20080284306A1
    • 2008-11-20
    • US12092743
    • 2006-11-06
    • Volker Dirk HildenbrandGary SigaiPeter J. Schmidt
    • Volker Dirk HildenbrandGary SigaiPeter J. Schmidt
    • H01J1/62
    • H01J61/44C09K11/025C09K11/0883C09K11/7734C09K11/7787Y02B20/19
    • A low-pressure mercury vapor discharge lamp has a light-transmitting discharge vessel (10) enclosing, in a gastight manner, a discharge space (13) provided with a filling of mercury and a rare gas. The discharge vessel comprises discharge means for maintaining a discharge in the discharge space. The discharge vessel is provided with a luminescent layer (17) comprising a mixture of at least a red and a green luminescent material. The red luminescent material comprises (Y,Gd)2O3:Eu. The green luminescent material comprises (Ba,Ca,Sr)2SiO4:Eu and/or (Sr,Ca,Ba,Mg,Zn)Si2N2O2:Eu. Particles of the green luminescent material are surrounded by a coating of aluminum oxide. Preferably, at least 50% of the particles of the green and red luminescent materials have an average diameter greater than or equal to approximately 5 μm. The mixture of the red and green luminescent materials render a low-pressure mercury-vapor discharge lamp with an improved lumen equivalent.
    • 低压汞蒸气放电灯具有以气密方式包围设置有汞和稀有气体的填充物的放电空间(13)的透光放电室(10)。 放电容器包括用于保持放电空间中的放电的放电装置。 放电容器设置有包括至少红色和绿色发光材料的混合物的发光层(17)。 红色发光材料包括(Y,Gd)2 O 3:Eu。 绿色发光材料包含(Ba,Ca,Sr)2 SiO 2:Eu和/或(Sr,Ca,Ba,Mg,Zn)Si 2 Eu 2 O 2。 绿色发光材料的颗粒被氧化铝的涂层包围。 优选地,绿色和红色发光材料的至少50%的颗粒具有大于或等于约5μm的平均直径。 红色和绿色发光材料的混合物使得具有改善的流明当量的低压汞蒸气放电灯。