| 摘要 |
PURPOSE: To facilitate an attaching and detaching work by dividing one part of a V-shaped reflection plate into an upper portion and a lower portion and lightening the weight of a louver so as to reduce fixing places. CONSTITUTION: The cutting-up portions 4' of a U-shaped reflection plate 4 are formed so as to enter inside a divided reflection plate 2. Angled bendings 4'' are added at the tip of the cutting-up portions 4' of the U-shaped reflection plate 4 so as to facilitate entering the reflection plate 2 at a louver fixing time. The cooling effect of a lighting device 8 contained in a main body 7 is brought about by a ventilating effect resulting from spaces between the reflection plate 2 and the cutting-up portions 4'. An attaching and detaching work is simplified and the ventilation effects is brought about. The attaching and detaching work of a louver is simplified by the reduction of fixing places owing to the lightening of the louver, and the cooling effect of the lighting device is brought about by the ventilating effect owing to the divided portions of the U-shaped reflection plate 4. |
