| 摘要 |
PURPOSE:To prevent the overheating of an apparatus, save a material, and miniaturize a heat insulating plate by providing the partially nearly bowl-shaped heat insulating plate on the top side in a reflecting plate provided in an apparatus main body. CONSTITUTION:When a lamp 4 is lighted, light is reflected by a reflecting plate 5 and sent downward for illumination. The vicinity of the top section of the reflecting plate 5 is located nearest to the center and heated by the lamp 4 most, a heat insulating plate 6 is partially provided at this portion, thus the heat of the lamp 4 is efficiently insulated, the overheating of the top section of an apparatus main body 1 is suppressed, and the occurrence of a fire can be prevented even if an apparatus is covered by a heat insulating material provided on a ceiling back or the like. The material of the heat insulating plate 6 is partially provided at the top section of the reflecting plate 5, it can be limited small, no reflecting plate with the nearly same shape as the reflecting plate 5 is provided on its outside, thus the heat insulating plate 6 can be miniaturized. |
