High pressure sodium lamp
专利汇可以提供High pressure sodium lamp专利检索，专利查询，专利分析的服务。并且PURPOSE: To prevent the missing of sodium and the cracking at the end of light emitting tube, by encapsulating sodium, metal for buffering gas and starting gas in light emitting tube body while providing a polycrystal alumina tube in the light emitting tube body.
CONSTITUTION: The light emitting tube is comprised of a light emitting tube body 7 made of polycrystal alumina and a tube 8 made of single-crystal alumina provided in said body 7 such that the distance from the inside of said body is shorter than 0.2mm. Both ends of said body 7 are encapsulated by end caps 9 penetrated with a conductor 11 having an electrode 10. Light emitting material such as sodium, metal for buffering gas such as mercury, and more than one kind of neon, argon, krypton, xenon as starting gas are encapsulated in the light emitting tube.
COPYRIGHT: (C)1980,JPO&Japio，下面是High pressure sodium lamp专利的具体信息内容。
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