| 摘要 |
PURPOSE:To make indoor illumination of a direct illumination type and an indirect illumination type possible by installing a rotating plate rotatably fixed to a frame material, a light source fixed to the rotating plate, and a reflecting plate fixed to the back surface of the frame material. CONSTITUTION:A rotating plate 2 is arranged on the inside of a frame material 1, and rotatably fixed to the back surface of the frame material 1 so that the surface facing the surface side of the material 1 is optionally selected with a rotating mechanism 3. The rotating mechanism 3 consists of a rotating shaft 31 fixed to a metal frame 22 and a bearing 32 fixed to the back surface of the material 1, and the rotating plate 2 can easily be rotated round the shaft 31 by only manually pushing part of the plate 2. Two luminescent lamps 4, 4 are fixed at both ends to the frame 22 arranged in parallel in two portions on both sides of an illumination aperture 21 of the plate 2, and a reflecting plate 5 covers the back side of the material 1 and is fixed to the back surface of the material 1. A direct illumination type which directly illuminates a room with light from a light source and an indirect illumination type which illuminates the room by reflecting light from the light source with the plate 5 can be used. |
