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    • 1. 发明授权
    • High-intensity discharge lamp, system for lighting the lamp and lighting appliance using the lamp
    • 高强度放电灯,照明灯系统和使用灯具的照明器具
    • US06713961B2
    • 2004-03-30
    • US09731860
    • 2000-12-08
    • Hisashi HondaSadao SakaguchiSeiji AshidaShigehisa KawatburuKazuhiro Miyagawa
    • Hisashi HondaSadao SakaguchiSeiji AshidaShigehisa KawatburuKazuhiro Miyagawa
    • H01J1100
    • H01J61/827H01J61/025H01J61/073H01J61/12H01J61/26H01J61/30H01J61/302H01J61/34H01J61/547H01J61/56H01J61/82
    • The invention provides the high-intensity discharge lamp and the high-intensity discharge lamp lighting system and the lighting system using the high-intensity discharge lamp showing the low enough starting voltage. The high-intensity discharge lamp comprising a lighting-source bulb provided with an enclosure, a light-transmissive ceramic enclosure defining a pair of small-diameter cylinders communicating with the enclosure at both ends thereof, a pair of electrodes and discharge agent, a metallic coil which is wound on the outside surface of at least one small-diameter cylinder and coupled to the other end of the electrode to have the same potential with the electrode, a jacket-bulb which hermetically accommodates therein the lighting-source bulb and the metallic coil, and a pair of outer lead terminals which are coupled to the pair of electrodes and hermetically led outside the jacket-bulb. The metallic coil is preferably wound for four turns or more on the small-diameter cylinder, and placed its one end near the boundary to the enclosure of the light-transmissive ceramic discharge enclosure, and the winding pitch of the metallic coil resides in the range of 100% to 500%. Further, the length L2 of the metallic coil is 0.3 to 1.0 times the length of the small-diameter cylinder. Furthermore, the end of it which is opposite to the enclosure is coupled to have the same potential as the other electrode.
    • 本发明提供高强度放电灯和高强度放电灯照明系统以及使用高强度放电灯的照明系统,其显示出足够低的启动电压。 高强度放电灯包括设置有外壳的照明源灯泡,限定一对在其两端与外壳连通的小直径圆筒的透光陶瓷外壳,一对电极和放电剂,金属 线圈,其缠绕在至少一个小直径圆柱体的外表面上并且耦合到电极的另一端以与电极具有相同的电位;气囊容纳其中的照明源球泡和金属 线圈和一对外引线端子,其连接到所述一对电极并且气密地引导到外壳灯泡的外部。 金属线圈优选在小直径圆筒上卷绕四圈以上,并将其一端靠近边界附近到透光陶瓷排出罩的外壳,金属线圈的卷绕间距在该范围内 为100%至500%。 此外,金属线圈的长度L2是小直径圆筒的长度的0.3〜1.0倍。 此外,其与外壳相对的端部被耦合以具有与另一电极相同的电位。