| 申请日期 | 2026-04-22 | 申请号 | JP2003161016 |
| 公开(公告)号 | JP4229437B2 | 公开(公告)日 | 2009-02-25 |
| 公开国别 | JP | 申请人省市代码 | 全国 |
| 申请人 | KOITO MFG CO LTD | ||
| 简介 | An automotive discharge bulb having a light emitting tube includes a ceramic tube with paired electrodes oppositely placed, and contains a light emitting material and starting rare gas. A transversal section of the ceramic tube is longitudinally elongated. In the ceramic tube having a longitudinally elongated transversal section, an arc generated into an upwardly convex shape and the tube wall do not make contact. | ||
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