| 摘要 |
PURPOSE:To improve the utilization efficiency of light and operability and prevent the fading of a partition and the like by continuously providing upper, rear, and lower reflecting plates, reflecting the light of two bar-shaped light sources downward and forward, and preventing the direct radiation backward and directly downward. CONSTITUTION:The upward and forward light within the light emitted from bar-shaped fluorescent lamps 5a, 5b is reflected nearly downward and forward by an upper reflecting plate 6. The downward and backward light is reflected by the front portion of the upper reflecting plate 6 via a lower reflecting plate 8 and a rear reflecting plate 7, and it can illuminate the wide range of a user's desk top plate with uniform illuminance. Since the reflecting plate 6 is extended forward, the light directly entering the user's eyes is suppressed. Little light is directly sent backward and downward from a light source, only the reflected light from the desk top plate is sent to a partition, and the fading and discoloration of the decorative fabric stuck to it can be prevented. |
