Investigation of luminous efficacy in scandium-sodium iodide arc lamps

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概要

• 論文の詳細を見る

• Sc-Na metal halide lamps are occupying an important place as energy saving light sources because of the high luminous efficacy and the good color rendition. In order to realize higher luminous efficacy, authors have investigated the effect of lamp design factors on radiation properties and luminous efficacy under the condition of higher NaScl_4 mole fraction.Based on the results of the precise measurements, the effects of the lamp design factors related to the cold sport temperature on the radiation properties have been well understood. The novel approach as well as the optimization of the lamp design factors at lower cold temperature have realized a high luminous efficacy of 121 lm/W in 400 W scandium-sodium lodide lamps.

• 社団法人照明学会の論文

著者

• Saito Masato

  Mitsubishi Electric Corporation Consumer Products Research Laboratories.

• WATANABE Keiji

  Mitsubishi Electric Corp. Consumer Products Research Laboratory

• SUZUKI Ryo

  Mitsubishi Electric Corporation, Consumer Products Research Laboratory

• TAGUCHI Shoichi

  Mitsubishi Electric Corporation, Consumer Products Research Laboratories.

• Suzuki Ryo

  Mitsubishi Electric Corporation Consumer Products Research Laboratories.

• Taguchi Shoichi

  Mitsubishi Electric Corporation Consumer Products Research Laboratories.

• Watanabe Keiji

  Mitsubishi Electric Corporation Consumer Products Research Laboratories.

関連論文

• A high pressure sodium lamp with the improved color rendition
• Effect of thermionic emitting heater on breakdown voltage in high pressure mercury vapor
• Investigation of luminous efficacy in scandium-sodium iodide arc lamps
• The effect of the xenon gas on the high pressure sodium arc

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