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1. 发明申请

US20080290801A1 Metal Halide Lamp, Metal Halide Lamp Lighting Device and Headlight 审中-公开
标题翻译：金属卤化物灯，金属卤化物灯照明装置和大灯
公开(公告)号：US20080290801A1
公开(公告)日：2008-11-27
申请号：US11631155
申请日：2005-06-28
申请人： Kozo Uemura , Keisuke Nakazato , Hiromichi Kawashima , Osamu Shirakwa , Makoto Deguchi , Takayuki Wajata
发明人： Kozo Uemura , Keisuke Nakazato , Hiromichi Kawashima , Osamu Shirakwa , Makoto Deguchi , Takayuki Wajata
IPC分类号： H01J61/30
CPC分类号： H01J61/125 , H01J61/30
摘要： There are provided a mercury-free metal halide lamp which is improved in light flux rising immediately after starting, more practical and suitable for a headlight, and a metal halide lamp lighting device and a headlight using this. The metal halide lamp according to the present invention comprises: a translucent air-tight container having an inner volume which is not grater than 0.1 cc, including an enclosure portion forming an inner space having a flat surface on a bottom surface, and having a ratio D/L satisfying the following expression: 0.25 ≦ D/L ≦ 0.43 where D is a distance between the bottom surface and a top surface of the inner space at a central portion in a tube-axis direction, and L is a length of the enclosure portion; a pair of electrodes sealed facing each other with an inter-electrode distance which is not greater than 5 mm; and a discharging medium containing a plurality of metal halogen compounds selected from a group of Sc, Na, In, Zn and a rare-earth metal and a rare gas but intrinsically not containing mercury (Hg), wherein a lamp power per unit inner surface area of the air-tight container is not smaller than 60 (W/cm2).
摘要翻译：提供了一种无汞金属卤化物灯，其在启动后立即上升的光通量得到改善，更实用且适用于大灯，以及金属卤化物灯照明装置和使用其的前照灯。根据本发明的金属卤化物灯包括：具有内部体积不超过0.1cc的透光性气密容器，包括形成在底面上具有平坦表面的内部空间的外壳部分，并且具有比例 D / L满足以下表达式：0.25 <= D / L <= 0.43其中D是在管轴方向的中心部分的内部空间的底表面和顶表面之间的距离，L是长度的外壳部分; 一对彼此相对密封的电极，电极间距离不大于5mm; 以及包含选自Sc，Na，In，Zn和稀土金属和稀有气体但本质上不含汞（Hg）的多种金属卤素化合物的放电介质，其中每单位内表面的灯功率气密容器的面积不小于60（W / cm2）。

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