发明名称 |
Mercury-free arc tube for discharge lamp unit |
摘要 |
An arc tube for a discharge bulb is provided for use in a vehicular lighting system. The arc tube includes a closed glass bulb that is pinch-sealed at opposite ends. Inner ends of a first electrode and a second electrode extend into the closed glass bulbs from the ends of the closed glass bulb. The atmosphere inside the closed glass bulb includes a starting rare gas, a primary light-emitting metal halide, and optionally, a buffer metal halide. The distance between the inner ends of the electrodes is between about 0.3 and 1.8, and the inner diameter of the closed glass bulb at a middle portion is between about 1.5 mm and 2.7 mm. Accordingly, a stable discharge is produced using between 15 W and 30 W of power.
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申请公布号 |
US7098596(B2) |
申请公布日期 |
2006.08.29 |
申请号 |
US20030717896 |
申请日期 |
2003.11.21 |
申请人 |
KOITO MANUFACTURING CO., LTD. |
发明人 |
TAKAGAKI MICHIO;SHIDO MASAYA |
分类号 |
H01J61/20;H01J61/04;H01J61/12;H01J61/34;H01J61/82;H01J61/88;H05B41/288 |
主分类号 |
H01J61/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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