发明名称 HIGH PRESSURE ELECTRIC DISCHARGE LAMP
摘要 PROBLEM TO BE SOLVED: To provide a high pressure electric discharge lamp capable of surely and permanently stop the generation of pulse voltage when an arc tube is in failure in its start because of some reasons, then the air-tightness of seal part of the tube is lowered and rare gas for start-up is made to flow in an outer tube. SOLUTION: A vacuum outer tube 9 is provided with an arc tube 1 which has a pair of electrodes at its opposed ends and in which are rare gas for start-up is sealed; and a starter 2 for applying a pulse voltage to between the electrodes. The starter 2 comprises a glow starter 2a and a heating resistor 2b. In parallel with the tube 1 a serially connected members, i.e., the starter 2, normally closed first thermosensitive switch 3 and a current fuse element 4 are connected while a normally open second thermosensitive switch 6 is connected to the starter 2 in parallel and an electric discharge gap 5 is connected to the starter 2 in parallel. The switch 6 is positioned in the vicinity of the resistor 2b.
申请公布号 JPH0992221(A) 申请公布日期 1997.04.04
申请号 JP19950242898 申请日期 1995.09.21
申请人 MATSUSHITA ELECTRON CORP 发明人 WADA MASAHITO;TAKUBO AKIO;GION HIROSHI;YOSHII AKIRA
分类号 H05B41/18;H01J61/54;H01J61/56;H05B41/19;(IPC1-7):H01J61/54 主分类号 H05B41/18
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