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METAL HALIDE LAMP AND LIGHTING FIXTURE

2025-06-19 02:173000下载
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PROBLEM TO BE SOLVED : To provide a metal halide lamp with start-up voltage lowered and not sealing mercury as well as a lighting fixture using the same. SOLUTION : The metal halide lamp is provided with an airtight vessel equipped with an envelope part 1a with a maximum inner diameter of D mm, a pair of electrodes 1b sealed in opposition inside the same with an interval of L mm, and a discharge medium consisting of rare gas containing a chemical and Xe by 5 to 30 mg/cc to an inner volume of the envelope part 1a with a charged pressure of 8 atm. at 25°C not intrinsically containing mercury. When a formula 1 (0.11
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