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High-pressure sodium lamp

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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 enable the starting of a high-pressure sodium lamp at a low voltage, by filling the lamp with a start assisting rare gas which is a mixed gas consisting of 100 parts of xenon and 5 to 30 parts of krypton.
CONSTITUTION: End plugs 2, 3 made of alumina ceramic are sealed up with a ceramic cement in both the ends of a light-permeable luminous tube 1 made of polycrystalline alumina ceramic or single-crystal alumina. Niobium tubes 4, 5 are sealed up as electrical current conductors in the end plugs 2, 3. Tungsten coil electrodes 6, 7 filled with an electron emitting substance are held by the niobium tubes. Sodium which is a light emitting substance, mercury which acts as a buffer gas, and the start assisting rare gas which is the mixed gas consisting of 100 parts of xenon and 5 to 30 parts of krypton are filled in the luminous tube 1.
COPYRIGHT: (C)1979,JPO&Japio,下面是High-pressure sodium lamp专利的具体信息内容。

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