Journal of Light & Visual Environment
Online ISSN : 1349-8398
Print ISSN : 0387-8805
ISSN-L : 0387-8805
Improvement in Start Characteristics of Mercury-free Metal Halide Discharge Lamps for Automobiles
Masaaki MUTOToshiyuki NAGAHARAAiko KANEGAEShinya OMORI
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ジャーナル フリー

2002 年 26 巻 3 号 p. 3_49-3_50

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抄録
We investigated the start characteristics (decreasing the breakdown voltage and increasing the luminous flux during run-up time) of mercury-free metal halide discharge lamps. Breakdown voltage of mercury-free metal halide discharge lamp could be reduced if the gas in the outer envelope is Xe or Xe/Ne. Adding indium iodide and supplying higher electrical power could increase luminous flux during run-up time. The run-up requirements in ECE regulation No. 99 can be achieved by supplying 90W of power to the lamp during run-up time.
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© 2002 The Illuminating Engineering Institute of Japan
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