作者: Takeshi Hisayasu , Hiroshi Matsushita
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摘要: A bulb-shaped lamp includes a housing which is formed of metal, and in cylindrical shape widely opens toward one end side using press molding. case synthetic resin, along the inner surface arranged housing. base attached to other case. heat radiating plate on light emitting module having semiconductor element mounted lighting circuit accommodated The board vertically axis direction becomes wide width case, at position close