基本信息:
- 专利标题： Metal halide lamp with a particularly configured discharge chamber
- 专利标题（中）：金属卤化物灯用特殊放电管配置
- 申请号：EP04013374.6 申请日：2004-06-07
- 公开(公告)号：EP1494261A3 公开(公告)日：2007-10-31
- 发明人： Brates, Nanu , Anami, Shinichi , Zhu, Huiling , Lambrechts, Stefaan M. , Maya, Jakob
- 申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD
- 申请人地址： 1006, Oaza-Kadoma Kadoma-shi, Osaka 571-8501 JP
- 专利权人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD
- 当前专利权人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD
- 当前专利权人地址： 1006, Oaza-Kadoma Kadoma-shi, Osaka 571-8501 JP
- 代理机构： Balsters, Robert
- 优先权： US607162 20030626
- 主分类号： H01J61/30
- IPC分类号： H01J61/30 ; H01J61/82 ; H01J61/12
摘要：
A metal halide lamp (10) for use in selected lighting fixtures comprising a discharge chamber (20) having light permeable walls of a selected shape including therein a pair of end region wall portions (22a,22b) through each of which a corresponding one of a pair of electrodes (33a,33b) are supported separated from one another by a separation length (L e ). The ratio of the separation length (L e ) to the effective operation inner diameter of the chamber (2R) is greater than two. The lengths of the wall sides between the end wall portions (L ccp ) are greater than the effective operation inner diameter (2R). The end wall portions (22a,22b) have inner surfaces of constant or smaller varying radii of curvature and they are separated from the interior ends of the electrodes by more than one millimeter. The discharge chamber can be constructed of polycrystalline alumina and contain metal halides.