| 摘要 |
<p>The lamp has a trough-shaped housing (2) for receiving or holding a fluorescent light source and a barrier (10), where the barrier includes a frame. Two light-transmissive materials (20, 21) are stringed in a light-radiating direction and spaced apart from each other. The light-transmissive materials have different sound permeability. The light-transmissive materials are refined by foils or fabrics. The lamp is made of aluminum profile element (12). An end wall of the barrier comprises a transparent element (15) i.e. plastic element.</p> |
