LIGHTING FIXTURE FOR VESSEL AND THE LIKE AND ELECTRIC CORROSION PREVENTIVE METHOD THEREOF

To provide a lighting fixture and an electric corrosion preventive technology preventing electric corrosion due to contacting of different kinds of metal when the lighting fixture is exposed to rain and the like.SOLUTION: A lighting fixture includes: a body portion 1 that is equipped with a substrate 2 equipped with a light source, a translucent cover portion 3, a metallic housing portion 4 having a heat radiation fin 5, and a tunnel-shape opening portion; and a fixing portion that is equipped with a metallic fixing tool 10 for fixing the body portion 1 to an installation part, a metal rod installed in the tunnel-shape opening portion for fixing the fixing tool 10 to the body portion 1, and a metallic nut 9 for rotatably fixing the metallic fixing tool 10 and the metal rod to the body portion 1. The lighting fixture has a water invasion preventive means for preventing the invasion of water to a contact part of the metal rod and the tunnel-shape opening portion.SELECTED DRAWING: Figure 6 【課題】照明器具が雨などに曝されたときに異種金属の接触による電蝕を防止した照明器具及び電蝕防止技術を提供する。【解決手段】光源を備える基板２と、透光性のカバー部３と、放熱フィン５を有する金属製の筐体部４と、トンネル状の開口部とを備える本体部１と、本体部１を設置部位へ固定するための金属製の固定具１０と、固定具１０を本体部１へ固定するために前記トンネル状の開口部内部へ設置される金属棒と、金属製の固定具１０と金属棒とを本体部１へ回動可能に固定するための金属製のナット９と、を備える固定部とを具備する照明器具であって、前記金属棒と前記トンネル状の開口部との接触部分への水の浸入を防止する水侵入防止手段を有する照明器具。【選択図】図６